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Quidway S9300 Terabit Routing Switch
V100R003C00
Routine Maintenance
Issue 02
Date 2010-07-15
HUAWEI TECHNOLOGIES CO., LTD.
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Copyright Huawei Technologies Co., Ltd. 2010. All rights reserved.
No part of this document may be reproduced or transmitted in any form or by any means without prior written
consent of Huawei Technologies Co., Ltd.
Trademarks and Permissions
and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of their respective holders.
Notice
The purchased products, services and features are stipulated by the contract made between Huawei and the
customer. All or part of the products, services and features described in this document may not be within the
purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information,and recommendations in this document are provided "AS IS" without warranties, guarantees or representations
of any kind, either express or implied.
The information in this document is subject to change without notice. Every effort has been made in the
preparation of this document to ensure accuracy of the contents, but all statements, information, and
recommendations in this document do not constitute the warranty of any kind, express or implied.
Huawei Technologies Co., Ltd.
Address: Huawei Industrial Base
Bantian, Longgang
Shenzhen 518129
People's Republic of China
Website: http://www.huawei.com
Email: [email protected]
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About This Document
Intended Audience
This document describes routine maintenance for the S9300 device in terms of routine
maintenance items, maintenance guidelines, maintenance records, and dangerous operations.
This document describes the procedure and method for routine maintenance for the S9300
device.
This document is intended for:
l Network monitoring engineers
l On-site maintenance engineers
l System maintenance engineers
Symbol Conventions
The symbols that may be found in this document are defined as follows.
Symbol Description
DANGER
Indicates a hazard with a high level of risk, which if not
avoided, will result in death or serious injury.
WARNING
Indicates a hazard with a medium or low level of risk, which
if not avoided, could result in minor or moderate injury.
CAUTION
Indicates a potentially hazardous situation, which if not
avoided, could result in equipment damage, data loss,
performance degradation, or unexpected results.
TIP Indicates a tip that may help you solve a problem or save
time.
NOTE Provides additional information to emphasize or supplement
important points of the main text.
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Command Conventions
The command conventions that may be found in this document are defined as follows.
Convention Description
Boldface The keywords of a command line are in boldface.
Italic Command arguments are in italics.
[ ] Items (keywords or arguments) in brackets [ ] are optional.
{ x | y | ... } Optional items are grouped in braces and separated by
vertical bars. One item is selected.
[ x | y | ... ] Optional items are grouped in brackets and separated by
vertical bars. One item is selected or no item is selected.
{ x | y | ... }* Optional items are grouped in braces and separated by
vertical bars. A minimum of one item or a maximum of all
items can be selected.
[ x | y | ... ]* Optional items are grouped in brackets and separated by
vertical bars. Several items or no item can be selected.
& The parameter before the & sign can be repeated 1 to n times.
# A line starting with the # sign is comments.
Change History
Updates between document issues are cumulative. Therefore, the latest document issue contains
all updates made in previous issues.
Changes in Issue 02 (2010-07-15)
Based on issue 01 (2010-04-30), the document is updated as follows:
The following information is modified:
l 2.2 Routine Maintenance Tasks and Operations
l 2.3.2 Cleaning the Fan Frame
l 2.4.1 Backing Up the Configuration Files
l 2.4.2 Restoring the Configuration Files
l 3.2 Risky Command Executions
l 4 Common Maintenance Commands
l 5 Reference for Routine Maintenance Items and Operations
About This Document
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Routine Maintenance
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Changes in Issue 01 (2010-04-30)
Initial commercial release.
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Contents
About This Document...................................................................................................................iii
1 Routine Maintenance Overview.............................................................................................1-1
1.1 Objective of Routine Maintenance..................................................................................................................1-2
1.2 Maintenance Specifications.............................................................................................................................1-21.3 Classification of Routine Maintenance...........................................................................................................1-3
1.3.1 Daily Routine Maintenance....................................................................................................................1-3
1.3.2 Periodic Routine Maintenance...............................................................................................................1-4
2 Routine Maintenance Items.....................................................................................................2-1
2.1 Routine Maintenance Items.............................................................................................................................2-2
2.2 Routine Maintenance Tasks and Operations...................................................................................................2-3
2.3 Cleaning the Equipment................................................................................................................................2-11
2.3.1 Cleaning the Air Filter..........................................................................................................................2-12
2.3.2 Cleaning the Fan Frame.......................................................................................................................2-132.3.3 Cleaning the Boards.............................................................................................................................2-16
2.4 Backing Up and Restoring Configuration Files............................................................................................2-17
2.4.1 Backing Up the Configuration Files.....................................................................................................2-17
2.4.2 Restoring the Configuration Files........................................................................................................2-19
2.5 Grounding System Maintenance...................................................................................................................2-20
2.5.1 Checking the Grounding System..........................................................................................................2-20
2.5.2 Measuring the Grounding Resistance..................................................................................................2-20
3 Risky Operations........................................................................................................................3-1
3.1 Risky Hardware Operations............................................................................................................................3-2
3.2 Risky Command Executions...........................................................................................................................3-3
4 Common Maintenance Commands........................................................................................4-1
5 Reference for Routine Maintenance Items and Operations..............................................5-1
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Figures
Figure 2-1 Removing an air filter.......................................................................................................................2-12
Figure 2-2 Installing an air filter........................................................................................................................2-13
Figure 2-3 Removing a fan module....................................................................................................................2-14
Figure 2-4 Installing a fan module.....................................................................................................................2-15
Figure 2-5 Arrangement of probes of an earth resistance tester.........................................................................2-21
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Tables
Table 2-1 List of routine maintenance items........................................................................................................2-2
Table 2-2 Routine maintenance tasks and operations.......................................................................................... 2-3
Table 3-1 Risky hardware operations...................................................................................................................3-2
Table 3-2 Risky command executions..................................................................................................................3-3
Table 4-1 Common maintenance commands....................................................................................................... 4-1
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1 Routine Maintenance OverviewAbout This Chapter
This chapter describes the principles and specifications for routine maintenance and
classification of routine maintenance items, and provides the forms used in routine maintenance.
1.1 Objective of Routine Maintenance
Routine Maintenance is preventive maintenance measure conducted during the normal operation
of the device. Routine Maintenance helps to discover the defects or possible faults of the device
and rectify them, on time. Routine maintenance guarantees long-term, stable, and reliable
operation of the device.
1.2 Maintenance Specifications
This section describes the principles of routine maintenance, including the following:
specifications for the environment of the equipment room, requirements for the maintenance
personnel, specifications for maintenance, specifications for maintenance terminals, and the
other specifications.
1.3 Classification of Routine Maintenance
This section describes the classification of routine maintenance tasks.
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1.1 Objective of Routine Maintenance
Routine Maintenance is preventive maintenance measure conducted during the normal operation
of the device. Routine Maintenance helps to discover the defects or possible faults of the device
and rectify them, on time. Routine maintenance guarantees long-term, stable, and reliable
operation of the device.
NOTE
This manual describes the procedure for maintaining the device through the command line interface (CLI).
To maintain the device through the Huawei network management system (NMS), refer to the relevant
manual.
1.2 Maintenance Specifications
This section describes the principles of routine maintenance, including the following:
specifications for the environment of the equipment room, requirements for the maintenance
personnel, specifications for maintenance, specifications for maintenance terminals, and the
other specifications.
Pay attention to the following specifications while maintaining the device:
Specifications for the Environment of the Equipment Room
Adhere to the following rules:
l Maintain the environment of the equipment room in compliance with the related industry
standards.l Keep the room clean, tidy, dust-proof, and moisture-proof.
l Take precautions to prevent the growth of fungi and mildew.
l Take precautions to prevent the entry of rodents and insects into the room.
Requirements for the Maintenance Personnel
Maintenance personnel should meet the following requirements:
l Only trained maintenance personnel can undertake maintenance tasks.
l The maintenance personnel must be familiar with maintenance theory, and be good at basic
operation skills and emergency handling skills.
During maintenance, the personnel must strictly follow the operation procedures and
industry safety standards to prevent accidents.
Specifications for Maintenance
Adhere to the following rules:
l Establish scientific and strict regulations to ensure effective device maintenance.
l Carry out a check periodically and maintain the records.
l
Manage management-level passwords properly and change them regularly to ensuresecurity. Assign different passwords to maintenance personnel to ensure system security.
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l Record all the significant operations, such as board switching, system resetting, and
software loading. Before performing such operations, analyze the situation and take backup
emergency and security measures.
l Authorize and control the modification of data, back up the data before modification, and
maintain modification records.l Wear anti-static wrist straps while operating the device. If a board is faulty, store it in an
anti-static bag.
Specifications for Maintenance Terminals
Adhere to the following rules:
l Do not install invalid firewall software and anti-virus software on the maintenance terminal.
Other Specifications
Adhere to the following rules:
l Ensure the availability of spare parts, especially the boards. In case of failure, replace the
faulty part.
l Return the faulty part to the Huawei local office or the sales agent of Huawei for repair.
l If the fault cannot be rectified, contact the Huawei Customer Service Center or the local
Huawei office for technical assistance.
1.3 Classification of Routine Maintenance
This section describes the classification of routine maintenance tasks.
According to the maintenance period, routine maintenance is classified into two types: daily
routine maintenance and periodic routine maintenance.
1.3.1 Daily Routine Maintenance
1.3.2 Periodic Routine Maintenance
1.3.1 Daily Routine Maintenance
Daily routine maintenance is carried out by the ordinary maintenance personnel.
The daily routine maintenance items are:
l Alarm system
l Operation status of the device
Daily routine maintenance is performed to:
l Locate alarms or other problems and solve them promptly. This helps in the stable
functioning of the device and lowers the failure rate.
l Find out the faults on the links or connections quickly and solve them to ensure normal
provision of services.
l
Have real-time information about the operation of the device and the network. This helpsto improve the efficiency of troubleshooting.
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1.3.2 Periodic Routine Maintenance
Periodic routine maintenance is relatively complex. It must be carried out by the maintenance
personnel who have undergone professional trainings.
The periodic routine maintenance items are:
l Power supply
l Grounding resistance
l Dust on the device
Periodic maintenance is done to:
l Ensure the secure and stable operation of the device for a long period.
l Check for problems such as device aging, function failures, and performance degradation.
You can do this by regularly checking, testing and cleaning the devices and creating a
backup of the data.
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2 Routine Maintenance ItemsAbout This Chapter
This chapter lists the routine maintenance items.
2.1 Routine Maintenance Items
The following are the maintenance cycle and maintenance items.
2.2 Routine Maintenance Tasks and Operations
This section describes the recommended cycle, operations, and references for routine
maintenance.
2.3 Cleaning the EquipmentThis section describes how to remove dust from air filter, fan frame, and boards.
2.4 Backing Up and Restoring Configuration Files
This section describes how to back up and restore configuration files.
2.5 Grounding System Maintenance
How to maintain the grounding system.
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2.1 Routine Maintenance Items
The following are the maintenance cycle and maintenance items.
NOTE
l The installation tools, meters, and related devices are not delivered with the S9300.
l Meters must be calibrated before use.
The stable running of the S9300 depends on the network planning and the routine maintenance.
In addition, fast location of the hidden hazards is necessary.
The routine maintenance items are the references and suggestions for maintenance of the running
environment, software and hardware of the S9300.
In routine maintenance, you can maintain the S9300 according to the maintenance items. Inaddition, you can add or delete the routine maintenance items according to the actual networking
and environment of the equipment room.
Table 2-1 lists all the routine maintenance items mentioned in this document.
Table 2-1 List of routine maintenance items
MaintenanceCycle
Maintenance Item
Daily Logs and alarms
Temperature and voltage
Fan and power supply
CPU usage and memory usage
Monthly Configuration files
Available space on the CF card
License information
System time
Interface traffic
Board running status
OSPF/IS-IS/BGP neighbor status
Routing information
Management-level user control
Telnet control
Anti-attack detect
FTP password control
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MaintenanceCycle
Maintenance Item
Change of the login password
Backup of configuration files and log files
Temperature and humidity in the equipment room
Quarterly Cleaning of air filters
Yearly Cleaning of fan frames, and boards
2.2 Routine Maintenance Tasks and Operations
This section describes the recommended cycle, operations, and references for routinemaintenance.
Table 2-2 Routine maintenance tasks and operations
MaintenanceTask
RecommendedCycle
Operation Guide Standards for Reference Result
Equip
me
nt
roo
m
Ambienttemperatu
re
Monthly
View the thermometerin the equipment room.
l Long-term operatingtemperature: 0C-45C;
Short-term operating
temperature: -5C-55C.
l If the temperature in the
equipment room cannot
meet the requirement for a
long time, the carrier may
need to repair or replace the
air conditioning.
l Check that the refrigeration
function is normal andswitch of the air
conditioning is well
contacted.
NOTEShort-term operating conditions
mean that the continuous
working time does not exceed 48
hours and the accumulated time
per year does not exceed 15
days.
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MaintenanceTask
Recommended
Cycle
Operation Guide Standards for Reference Result
Ambient
humidity
Mont
hly
View the hygroscope in
the equipment room.
l Normally, the relative
humidity in long-term
operating environment is
between 5%RH and 85%
RH, non-condensing; that
in short-term operating
environment is between
0%RH and 95%RH, non-
condensing.
l If the relative humidity ofthe equipment room is
high, the carrier may need
to install a dehumidifier. If
the relative humidity of the
equipment room is low, the
carrier may need to install
a humidifier.
Ba
sic
inf
orma
tio
n
Alarms Daily Run the display alarm
all command to view the
alarms related to hot
backup, restart, hotswapping of boards,
removal and installation
of fans and power
modules, abnormal
temperature, abnormal
clock, and chip
exception.
Run the display
trapbuffer command to
view the alarms in the
buffer.
l No alarm is generated.
l If an alarm is generated,
record it. If a major alarm
or more serious alarm is
generated, analyze and
process it immediately.
Logs Daily Run the display
logbuffer command.
l There are no repeated logs.
l If a lot of repeated logs
occur, analyze and process
them immediately.
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MaintenanceTask
Recommended
Cycle
Operation Guide Standards for Reference Result
Configura
tion files
Mont
hly
Run the display
current-configuration
and display saved-
configuration
commands to view and
save the current
configuration.
Run the compare
configuration
command to comparethe current
configuration with the
saved configuration.
Run the dir and display
startup commands.
l The current configuration
must be the same as the
saved configuration.
l The configuration must
meet the user
requirements.
l The configuration file
names, file size, and file
saving time on the master
and slave MPUs must be
the same.
Files in
the CF
card
Mont
hly
Run the dir command. l All the files in the CF card
must be useful; otherwise,
delete the undesired files
by using the delete/
unreserved commands.
License
informati
on
Mont
hly
Run the display license
command.
l The license is activated and
the current time is earlier
than "Run time."
Patch
informati
on
Mont
hly
Run the dir and display
patch-information
commands.
l The installed patches must
meet the requirements. The
latest patch released by
Huawei corresponding to
the product is
recommended.
l The patches have taken
effect. That is, the value of"Total Patch Unit" is the
same as the value of
"Running Patch Unit."
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MaintenanceTask
Recommended
Cycle
Operation Guide Standards for Reference Result
Ru
nni
ng
stat
us
of
the
equ
ip
ment
Temperat
ure
Daily Run the display
temperature { all |
slot } ordisplay health
command.
l The temperature of each
module should be between
the upper limit and lower
limit. That is, the value of
"Status" is "normal."
Voltage Daily Run the display
voltage {all | slot } or
display health
command.
l The voltage of a board
should be between the
upper limit and lower limit.
That is, the value of
"Status" is "normal."
Fan status Daily Run the display fan or
display health
command.
l The value of "present" is
"YES."
l The value of "register" is
"YES."
Power
status
Daily Run the display power,
display power system,
ordisplay health
command.
l The value of "State" is
"On."
l If the "Present" field of the
power supply is "YES", the
value of State should be
Supply.
System
time
Mont
hly
Run the display clock
command.
l Check the system date and
time. The system time must
be the same as the local
time. (The difference is less
than five minutes.)
l If the system time is
incorrect, run the clock
command to change the
time or run NTP.
CPU
usage
Daily Run the display cpu-
usage [ slave | slotslot-
id] ordisplay health
command.
l The value of "CPU Usage"
should be smaller than the
value of "Upper Limit."
l If the CPU usage remains
high, check the device to
locate the problem.
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MaintenanceTask
Recommended
Cycle
Operation Guide Standards for Reference Result
Memory
usage
Daily Run the display
memory-usage [slave |
slotslot-id] ordisplay
health command.
l The memory usage should
be smaller than the value of
"Upper Limit."
l If the memory usage
remains high, check the
device to locate the
problem.
Interface
traffic
Mont
hly
Run the display
interface command.
l If the current interface
traffic is more than 80% ofthe interface bandwidth,
record the event and find
out the reason.
l Check whether there are
errored packets in the
inbound or outbound
direction. Pay attention to
the increase of errored
packets and check the
interval of errored packets.
Boardrunning
status
Monthly
Run the display devicecommand.
Run the display reset-
reason command.
l The value of "Online"should be "Present."
l The value of "Power"
should be "PowerOn."
l The value of "Register"
should be "Registered."
l The value of "Alarm"
should be "Normal."
l No board is reset
abnormally.
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MaintenanceTask
Recommended
Cycle
Operation Guide Standards for Reference Result
Active/
standby
switchove
r
Mont
hly
Run the display
switchover state
command.
l When the software and
hardware of the device are
normal and the software
versions are consistent, the
following information
should be displayed (Take
the S9312 for example):
Slot 7 HA FSM State
(master): realtime or
routine backup.
Slot 8 HA FSM State
(slave): receiving realtime
or routine data.
l If no slave MPU is
installed, the following
information is displayed:
"Slot D HA FSM State
(master): waiting for the
slave to be inserted."
Startupfile Monthly Run the displaystartup command.
l
The startup file should becorrect.
System
software
and board
software
versions
Mont
hly
Run the display
version orcheck
version all command.
l Normally, the displayed
system software and board
software versions meet the
requirements. If two MPUs
are installed, the software
versions of the active and
standby MPUs must be the
same.
Ro
uting
inf
or
ma
tio
n
OSPF
neighborstatus
Mont
hly
Run the display ospf
peer command.
Run the display ospf
peer last-nbr-down
command.
l The value of "State" should
be "Full."
l The neighbor relationship
should be retained for at
least one day.
l Normally, no neighbor is in
Down state.
IS-IS
neighbor
status
Mont
hly
Run the display isis
peer command.
l The value of "State" should
be "Up."
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MaintenanceTask
Recommended
Cycle
Operation Guide Standards for Reference Result
BGP peer
status
Mont
hly
Run the display bgp
peer command.
l The value of "State" should
be "Established."
Routing
informati
on
Mont
hly
Run the display ip
routing-table
command. Compare the
routing information
with that displayed the
last time and check
whether the routes
change greatly.
Run the ping ortracert
command for some
routing entries.
l The routing table should
contain the default route.
l On all the devices running
the same routing protocol
at the same layer of a
network, the routing
entries should be almostidentical. If static routing is
configured, the routing
entries in the routing tables
of different devices may
differ.
Us
er
ma
nag
em
entand
sec
urit
y
ma
nag
em
ent
Managem
ent-level
user
control
Mont
hly
Run the display
current-configuration
| include super
password command.
l The super user password
must be set in the system
and the password should be
in cipher text.
l If the password setting is
incorrect, run the superpassword command to set
the super user password in
cipher text.
Telnet
control
Mont
hly
Run the display
current-configuration
| include password
command.
l The Telnet user password
and the super user
password must be
different.
l The password should be in
cipher text.
Attack
defense
detection
Mont
hly
Run the display
current-configuration
| includecpcar
command.
l The attack defense
function should be
configured.
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MaintenanceTask
Recommended
Cycle
Operation Guide Standards for Reference Result
FTP
password
control
Mont
hly
Run the display
current-configuration
| include password
command.
l The FTP user password
and the super user
password must be
different.
l The password should be in
cipher text.
Changing
login
password
Mont
hly
Run the local-user
usernamepassword
cipherpasswordcommand in the AAA
view.
For the user that adopts
local password
authentication, run the
set authentication
password command to
change the password.
l The password is a string of
at least 6 characters, in
cipher text.l The password is changed at
least once a quarter.
Backup of
configurat
ion file
Mont
hly
Back up the
configuration file to the
server.l To back up the
configuration file
through TFTP, run
the tftpput
command in the user
view.
l To back up the
configuration file
through FTP, run the
get command in the
FTP client view.For details, see 2.4.1
Backing Up the
Configuration Files.
l The configuration file
saved on the server is the
same as that on the device.
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MaintenanceTask
Recommended
Cycle
Operation Guide Standards for Reference Result
Backup of
log file
Mont
hly
Back up the log file to
the server.
l Run the save logfile
command to save the
log file to the CF
card.
l To back up the log
file through TFTP,
run the tftpput
command in the user
view. To back up the
log file through FTP,
run the get command
in the FTP client
view.
The methods of backing
up the configuration file
and log file are the same.
For details, see 2.4.1
Backing Up the
Configuration Files.
l The log file saved on the
server is the same as that on
the device.
Cle
ani
ng
Cleaning
the air
filter
Quar
terly
For details, see 2.3.1
Cleaning the Air
Filter.
l The air filter should be
clean.
Cleaning
the fan
frame
Yearl
y
For details, see 2.3.2
Cleaning the Fan
Frame.
l The fan frame should be
clean.
Cleaning
the board
Ever
y two
years
Replace the boards with
spare boards one by one,
and remove dust from
the boards. For details,see 2.3.3 Cleaning the
Boards.
l The boards should be
clean.
l It is recommended that you
clean the boards every two
years.
2.3 Cleaning the Equipment
This section describes how to remove dust from air filter, fan frame, and boards.
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WARNING
l Take ESD preventive measures. For example, you must operate at an antistatic workbench
and wear antistatic clothes and wrist straps.l To ensure heat dissipation and ventilation of the system, and prevent the air filter from being
covered by dust, clean the air filter every three months. If the equipment room is dusty, clean
it more frequently.
2.3.1 Cleaning the Air Filter
2.3.2 Cleaning the Fan Frame
2.3.3 Cleaning the Boards
2.3.1 Cleaning the Air Filter
Context
The air filter of the S9300 prevents dust in the air so that the heat dissipation and ventilation
conditions in the chassis are good.
The air filter does not needpower and is hot swappable. It is convenient for cleaning.
Tools
l ESD-preventive wrist straps or gloves
l Cross screwdriver
Procedure
Step 1 Remove the air filter.
1. Wear the ESD-preventive wrist strap and connect the grounding terminal to the ESD jack
on the rack.
2. Loosen the captive screws of the air filter anti-clockwise with a Phillips screwdriver, as
shown in Figure 2-1.
3. Grasp the handle of the air filter and pull out the air filter, as shown in Figure 2-1.
Figure 2-1 Removing an air filter
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Step 2 Clean the air filter.
1. Dust off air filter.
2. Flap and vacuum the air filter or wash the air filter and dry it.
Step 3 Install the air filter.
1. Insert the clean and dry air filter into the chassis, as shown in Figure 2-2.
2. Tighten the captive screws of the air filter with a Phillips screwdriver, as shown in Figure
2-2.
Figure 2-2 Installing an air filter
----End
2.3.2 Cleaning the Fan Frame
Context
During the operation of the device, the fan, the controlling circuit board and some other parts of
the fan frame absorb the dust in the air. When dust is accumulated, the operation of the fan frame
will be unstable. In addition, the accumulated dust becomes the pollution source of the service
cabinet and hence threats the stable operation of the device. To ensure the stable operation of
the device, clean all the fan frames every year.
Precautions
DANGER
Do not put your hands into the running fans!
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CAUTION
The operation must be completed within five minutes; otherwise, the safety and stability of the
device will be severely affected because of the high temperature.
Tools
l ESD-preventive wrist strap or ESD-preventive gloves
l Phillips screwdriver
Procedure
Step 1 Clean the spare fan frame.
Clean the fan, controlling circuit board and other parts of the spare fan frame with clean cottonpledget, antistatic soft brush and vacuum cleaner. There should be no dust on the fan frame after
cleaning.
Step 2 Replace the fan frame to be cleaned.
1. Check the position of the fan frame to be cleaned.
Before removing a fan frame that is to be replaced, check the position of the fan frame, for
example, the cabinet and chassis where the fan frame is installed. Then, find out the fan
frame to be replaced in the chassis and attach a label to the panel to identify the fan frame.
2. Wear the ESD-preventive wrist strap and connect the grounding terminal to the ESD jack
on the rack.
3. Remove the fan frame to be replaced from the chassis.
a. Loosen the four captive screws on both sides of the fan frame with a Phillips
screwdriver, as shown in Figure 2-3.
b. Grasp the handles on the two sides of the fan frame and pull out the fan frame, as
shown in Figure 2-3.
Figure 2-3 Removing a fan module
4. Locate the spare fan frame in the chassis.
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a. Grasp the handles on the two sides of the fan frame and push the fan frame into the
chassis, as shown in Figure 2-4. When you push the fan frame, align the locating
holes on the panel of the fan frame with the bolts on the chassis. Push the fan frame
gently until the panel of the fan frame touches the two sides of the chassis.
b. Tighten the captive screws clockwise with a Phillips screwdriver to secure the fanframe in the chassis, as shown in Figure 2-4.
Figure 2-4 Installing a fan module
5. Verify the function of the new fan frame.
In normal situations, after a new fan frame is inserted into the chassis, the fans immediately
start to operate to blow air into the chassis. In this case, you can check whether the fan
frame functions normally as follows:
l If the STATUS indicator on the panel of the fan module is green and blinks at the
frequency of 0.5 Hz, it indicates that the fan frame runs normally. If the indicator is red,
it indicates that the fan frame is abnormal.
l Run the display fan command to view the running status of the new fan frame. If the
output is displayed as follows, it indicates that the new fan frame works normally. Take
the S9312 for example:
display fan
-------------------------------------------------------------
FanId FanNum present register Speed MODE
-------------------------------------------------------------
17 [1-0] YES YES 100% AUTO18 [1-0] YES YES 100% AUTO
19 [1-0] YES YES 100% AUTO
20 [1-0] NO NO 0% AUTO
The preceding output information indicates that the fan frame status is restored to normal.
If the fan frame is still abnormal, contact the Huawei local office for technical support.
NOTE
The fan IDs of the S9300 correspond to the fan frames on the S9300. The fan frame with a small ID is in
the upper part of the chassis, and the fan frame with a large ID is in the lower part of the chassis. For
example, on the S9312, the fan frame with the ID being 17 is on the top of the chassis, and the other fan
frames are below it.
Step 3 Clean the replaced fan frame.
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Clean the fan, controlling circuit board, and other parts of the spare fan frame with clean cotton
pledget, antistatic soft brush, and vacuum cleaner. This fan frame is used as the spare one after
cleaning.
----End
2.3.3 Cleaning the Boards
Context
During the operation of the device, dust accumulates on the boards because of air convection in
the process of heat dissipation. More dust accumulates on boards if the air is not clean and the
relative humidity is low. When dust is accumulated, the heat dissipation and the electric
insulation of boards are affected. This threatens the stable operation of the device.
To ensure the stable operation of the device, clean all the boards every two years.
Tools
You can choose the tools according to the actual situation:
l Dust cleaner
l Detergent
l ESD-preventive wrist straps or gloves
Precautions
WARNING
l Take ESD preventive measures during the whole process of routine maintenance. For
example, perform operations on an antistatic workbench and wear antistatic clothes and wrist
straps.
l Use the detergent that conforms to the industry standard; otherwise, the board may be
damaged.
CAUTION
Removing boards that are in service may affect the operation of services. Therefore, clean the
boards when traffic volume is low, for example, between 2:00 a.m. and 4:00 a.m.
Procedure
Step 1 Prepare spare boards.
You must prepare a spare board for each board in the cabinet before you clean all the boards.
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Step 2 Replace boards.
Replace a board with the spare board. You can start removing the dust from the board only when
the spare one is running normally.
For details about how to replace boards, see Quidway S9300 Terabit Routing Switch PartsReplacement.
Step 3 Remove dust.
The process of cleaning the boards should be such that the physical attributes and electrical
attributes of the boards are protected. The two ways to clean dust are as follows:
l Using the vacuum
Brush dust off the board surface with a clean and dry antistatic soft brush and align the dust
intake of a vacuum with the brush. In this case, dust is removed immediately when it is
brushed off.
This method features simple operation and low cost. But it is difficult to remove harmful gasthat is adsorbed on the board surface.
l Using the detergent
Use the anhydrous, erosion-free, non-conductive, and highly volatile detergent such as
Isopropyl Alcohol (IPA) to remove dust from boards.
CAUTION
It is recommended that you wear respirator when you use the detergent such as IPA.
This method helps to remove dust and harmful gases that are adsorbed on the board surface.
It, however, is a complex operation and involves high cost.
Step 4 Reuse boards.
Due to the limited number of spare boards, you can use the cleaned boards to replace the dirty
ones.
----End
2.4 Backing Up and Restoring Configuration FilesThis section describes how to back up and restore configuration files.
2.4.1 Backing Up the Configuration Files
2.4.2 Restoring the Configuration Files
2.4.1 Backing Up the Configuration Files
Context
You can back up the configuration files by using the following ways:
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Procedure
l Copying the screen directly
In the CLI, run the display current-configuration command. Copy all the display to txt
documents, then back up the configuration files to the hard disk of the maintenance terminal.l Backing up the configuration files through TFTP
1. Copy the configuration files in the CF card directly.
This action is to back up the current configuration files that are stored in the CF card
of the router.
After startup of the device, use the following commands to back up the configuration
files in the CF card of the router.
save cfcard:/config.cfg
Are you sure to save the configuration to flash:/config.cfg?[Y/N]:y
Now saving the current configuration to the slot 4 ......
Save the configuration successfully. copy config.cfg cfcard:/backup.cfg
Copy flash:/config.cfg to cfcard:/backup.cfg?[Y/N]:y
100% complete/
Info: Copied file flash:/config.cfg to cfcard:/backup.cfg...Done.
2. Assign an IP address for the router.
The router acts as the TFTP client.
Connect the router to the maintenance terminal. Establish the Telnet environment and
assign an IP addresses for the interface. A reachable route must exist between the
TFTP client and the TFTP server.
3. Start the TFTP server application program.
Start the TFTP server application in the PC. Set the path, the IP address, and the port
number of the TFTP server to download the configuration files.
4. Transfer the configuration files.
In the user view, run the tftp command.
tftp 10.110.24.209 put config.cfg
Info: Transfer file in binary mode.
Uploading the file to the remote TFTP server. Please wait.../
TFTP: Uploading the file successfully.
3501 bytes send in 1 second.
l Backing up the configuration files through FTP
1. Connect the router to the maintenance terminal, establish the Telnet environment and
assign an IP address for the interface.
2. Start the FTP service.
The router acts as the FTP server.
Start the FTP server on the router. Create an FTP user whose username is router and
password is 123. Authorize the user to visit cfcard:\.
system-view
[Quidway] ftp server enable
[Quidway] aaa
[Quidway-aaa] local-user router password cipher 123
[Quidway-aaa] local-user router ftp-directory cfcard:/[Quidway-aaa] local-user router service-type ftp
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3. Initiate an FTP connection to the router from the maintenance terminal.
On the PC, establish an FTP connection with the router through the FTP client. For
example, the IP address of the router is 10.110.24.254.
C:\Documents and Setting\Administrator> ftp 10.110.24.254Connected to 10.110.24.254.
220 FTP service ready.
User (10.110.24.254:(none)): router
331 Password required for router.
Password:
230 User logged in.
4. Set the parameters.
After the FTP user passes authentication, the FTP client prompts "ftp>". Enter
binary and specify the directory for storing the configuration files on the FTP client.
ftp>binary
200 Type set to I.
ftp> lcd c:\temp
Local directory now C:\temp.
5. Transfer the configuration files.
Run the get command on the PC to download the configuration files to the local
specified directory and save them as backup.cfg.
ftp> get config.cfg backup.cfg
200 Port command okay.
150 Opening ASCII mode data connection for config.cfg.
226 Transfer complete.
ftp: 1021 bytes received in 0.06Seconds 60.02Kbytes/sec.
ftp>
6. Check whether the config.cfg and backup.cfg files are of the same size. If they are
of the same size, the backup is successful.
----End
2.4.2 Restoring the Configuration Files
Context
You can restore the configuration files through the following ways:
NOTE
After restoring the configuration files, restart the device to make the configuration files take effect. Run
the startup saved-configuration command to specify the configuration file for next startup. If theconfiguration file name is unchanged, you do not need to run this command. Then run the reboot command
to restart the device.
Procedure
l Restoring the configuration files saved in the CF card
This operation is to restore the configuration files saved in the CF card of the device as the
configuration files of the current system.
Run the following commands when the device works normally.
copy cfcard:/backup.cfg cfcard:/vrpcfg.zipCopy cfcard:/backup.cfg to cfcard:/vrpcfg.zip?[Y/N]:y
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100% complete/
Info: Copied file cfcard:/backup.cfg to cfcard:/vrpcfg.zip...Done.
l Restoring the configuration files saved in the PC through TFTP
The device works as the TFTP client. The restoration procedure is similar to that ofbacking
up the configuration files through TFTP. Run the tftpget command to download theconfiguration files saved in the PC to the CF card of the device.
l Restoring the configuration files saved in the PC through FTP
The device acts as the FTP server. The restoration procedure is similar to that ofbacking
up the configuration files through FTP. Run the put command to upload the
configuration files saved in the PC to the CF card of the device.
----End
2.5 Grounding System Maintenance
How to maintain the grounding system.
2.5.1 Checking the Grounding System
2.5.2 Measuring the Grounding Resistance
2.5.1 Checking the Grounding System
To maintain the grounding system, check the following:
l Check the electrical contact between the metallic parts and the cabinet body. The metallic
parts and the cabinet body must be well contacted. The contact points such as screw holes,
guide lanes, and lifting ears cannot be painted. Otherwise, bad electrical contact may occur.
l Check the grounding terminals at the front and back doors and the side doors. These
terminals must be well connected with the grounding wires.
l Check the grounding buses of combined neighboring cabinets. If cabinets are combined,
the neighboring cabinets must be connected by a grounding bus.
l Check the yellow and green protecting grounding cables. One end of a grounding cable
should connect the PGND grounding bus of the power distribution cabinet in the equipment
room, and the other end connects the grounding terminal of the cabinet. The screws that
fix the grounding cable must be secure.
2.5.2 Measuring the Grounding ResistanceNOTE
The grounding resistance of a comprehensive communication building should be no more than 1 ; that
of a common communication station should be no more than 5 ; that of the place with high earth
resistibility should be no more than 10 .
To measure the grounding resistance, use an earth resistance tester. Figure 2-5 shows the arrangement of
the probes of an earth resistance tester.
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Figure 2-5 Arrangement of probes of an earth resistance tester
NOTE
l Position the current probe and the voltage probe in a manner that is perpendicular to the wires of a
grounding net or underground metallic pipes.
l Do not measure the grounding resistance immediately after a rain.
l The distance between the current probe and the rim of a grounding net is d1 and the length
of the maximum diagonal line of a grounding net is D. d1 should be 4-5 times as much as
D.
l The distance between the probe and the side of a grounding net is d2. d2 is 50%-60% of
d1.
l During measurement, move the voltage probe along the line connecting the grounding net
and the current probe three times; the distance of each movement is 5% of d1. If the threeresistance values are similar, it means that the grounding resistance is normal.
NOTE
If measuring d1 is difficult, you can take 2D instead of d1 and take D instead of d2 in a place where the
earth resistibility is the same. In a place where the resistibility is different, you can take 3D instead of d1
and take 1.7D instead of d2.
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3 Risky OperationsAbout This Chapter
This appendix describes the operations that may cause human injury or equipment fault.
3.1 Risky Hardware Operations
The following hardware operations may affect the service running and hardware safety or harm
the human body; therefore, perform the following operations with caution.
3.2 Risky Command Executions
Only trained and qualified personnel can run the commands listed in this section.
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3.1 Risky Hardware Operations
The following hardware operations may affect the service running and hardware safety or harm
the human body; therefore, perform the following operations with caution.
Table 3-1 Risky hardware operations
Item Sub-item Consequences of Mal-operations
Operations
on boards
Hot swapping the in-
service active main board
is prohibited.
l When the standby main board runs normally,
data synchronization between the active
board and the standby one requires a certain
period. When the active main board is
plugged out, the system performs automatic
switchover. The latest data on the active main
board, however, cannot be backed up entirelyto the standby main board. This results in
wrong statistics and data loss.
l When the standby main board fails, removing
the in-service active main board results in
interruption of part of or even all services.
Pressing the Reset button
on the main board at will is
prohibited.
l Pressing the Reset button on the panel forces
the board to reset its hardware. This operation
can be carried out only by the qualified
personnel when fatal faults occur in the
system.
l If the Reset button on the panel is pressed by
mistake, the main board will be reset. Its
results are the same as those of removing the
in-service active main board.
Inserting or removing
boards without wearing an
antistatic wrist strap is
prohibited.
l Electrostatic discharge on human body
damages electrical components on the board.
l If the maintenance personnel insert or remove
boards without wearing an antistatic wrist
strap, the board may be damaged or may not
run properly.
Debugging the serial port
of the board through the
serial cable is prohibited.
Only Huawei engineers can use the debugging
serial port. Otherwise, abnormality of board
program or board resetting may be caused.
Operations
for cable
Installing or removing
network cables inside the
cabinet at will is
prohibited.
l The network cables inside the cabinet are used
for communication between the host and the
maintenance terminal.
l Installing and removing the cables inside the
cabinet at will may cause the maintenance
terminal to fail to log in to the switch.
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Item Sub-item Consequences of Mal-operations
Operations
for power
supply
Switching on or switching
off the power supply in the
power distribution frame of
the cabinet at will is
prohibited.
l Only in the case of upgrading, expansion,
parts replacement or fatal faults, the
maintenance personnel can operate the power
supply following the guidelines.
l Operations at will may cause fatal faults such
as shut-down of the device and interruption of
the services.
3.2 Risky Command Executions
Only trained and qualified personnel can run the commands listed in this section.
Table 3-2 Risky command executions
Classification Command Function Consequences of Mal-operations
Reboot reboot Rebooting the
system
This command can be used only
in the case of office deployment
or upgrading. Otherwise, the
services carried by the device
will be interrupted.
Schedule reboot schedule reboot Rebooting the
system onschedule
This command can be used only
in the case of office deploymentor upgrading. Otherwise, the
services carried by the device
will be interrupted.
Reboot slave restart Restart the slave
main control
board.
Only trained and qualified
personnel can run this command
during deployment or upgrade.
Forcible
switchover
slave switchover The switchover
is performed
forcibly.
If the data on the master board
and slave board is not
synchronized, the configuration
data is lost and services areinterrupted.
Formatting formatdevice-
name
Formatting the
storage device
Running this command causes
the loss of all the files on the
specified storage device, and the
files cannot be restored.
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Classification Command Function Consequences of Mal-operations
Deletion delete [ /
unreserved ]
filename
Deleting the
specified files in
the storage
device
Running this command deletes
the specified files in the storage
device of the switch. If you use
the unreserved command when
deleting files, the files cannot be
restored.
User interface authentication-
mode
Authenticating
the login users
When setting user
authentication on the console
port and the VTY interface, if
the mode is password orAAA,
you must configure the
password or user name for
logging in to the router.
System
maintenance
startup Setting the host
file for next
startup
In the active/standby mode,
configure the large files for the
next startup on the active and
standby main boards at the same
time. Otherwise, the switch will
restart repeatedly.
System
maintenance
upgrade Upgrading a
board
Running this command will
interrupt the services.
System
maintenance
power off slot
slot-id
Powering off a
board
Running this command will
power off a board and interruptthe services.
System
maintenance
reset commands Clearing data
and resetting
hardware
Running a reset command will
clear the specified data. For
example, running the reset
logbuffer command can clear
the data in the log buffer;
running the reset slot command
can reset an LPU to interrupt
services.
System
maintenance
save Saving data If the save operation is
performed improperly, the
configuration data will be lost or
wrong.
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4 Common Maintenance CommandsThis appendix describes the commonly used commands for routine maintenance.
Table 4-1 shows the common maintenance commands.
Table 4-1 Common maintenance commands
Command Function
dir Displays the information on the specified file
or directory in the storage device of the
S9300.
display alarm {slot-id| all } Displays alarms.
display bgp peer Displays the information on BGP peers.
display clock Displays the current date and time of the
S9300.
display cpu-usage Displays the information on CPU usage.
display current-configuration Displays the current valid parameters of the
S9300.
display fan Displays the status of the fan.
display fib Displays the total number of the FIB entries.
display device [ pic-status| slot-id] Displays the basic information on the router.
display ftp-server Displays the parameters of the current FTP
server.
display interface Displays the operating status and statistics of
an interface.
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Command Function
display ip interface [ interface-type
interface-number]
Displays the detailed IP-related
configurations and statistics of an interface.
The packets, bytes, and multicast packets
transmitted and received, and broadcast
packets received, sent, and discarded are
included.
display ip routing-table Displays the brief information of the IPv4
routing table.
display isis peer Displays the IS-IS peer relationship.
display logbuffer Displays the record in the log buffer.
display memory-usage Displays the CPU usage of the router.
display ospf[process-id] brief Displays the brief information of OSPF.
display ospf[process-id] peer Displays OSPF neighbors.
display ripprocess-idneighbor Displays RIP neighbors.
display patch-information Displays the status of the patch.
display power Displays the status of the power supply.
display saved-configuration Displays the configuration files for next
startup of the router.
display startup Displays the system software and theconfiguration file names related to the current
and next startup.
display switchover state Displays the backup status of the active and
standby boards.
display temperature Displays the status of the slot temperature
sensor.
display trapbuffer Displays the record in the alarm buffer.
display voltage slotslot-id Displays the status of voltage sensor in the
specified slot.
display version Displays the version of system software.
ping Displays IP network connection.
You can check whether the host is reachable.
tracert Tests the gateways the packets pass through
from the host to the destination.
You can check the network connection to
locate the faults.
4 Common Maintenance Commands
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5 Reference for Routine Maintenance Itemsand Operations
This section describes the routine maintenance items and operations that are not used often.
Maintenance Item Operation Guide
Standards forReference Result
Interface and
link status
Run the display
interface brief
command.
l The interface or link in
use is in Up state, and
the interface not in use
is in Down state.
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Maintenance Item Operation Guide
Standards forReference Result
Interface
configuration
Run the display
interface ordisplay
current-
configuration
command.
Check the status and
configurations of the
interface.
l No command except
shutdown can be run
on the interface in
Down state.
l The interface in Up
state must be
configured.
l After two query
operations, the Input
and Output packets onan interface in Up state
should be increased
every time. If no
traffic is transmitted
or received on the
interface, the packets
are not increased.
l After two query
operations, the
number of discarded
packets should be the
same as the number oferrored packets. That
is, there are no packets
newly discarded or
new errored packets.
l The operating modes,
including speeds and
duplex modes, on the
two ends must be the
same.
5 Reference for Routine Maintenance Items and Operations
Quidway S9300 Terabit Routing Switch
Routine Maintenance
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Maintenance Item Operation Guide
Standards forReference Result
Interface
description
Run the display
interface
command.
l The description of the
active interfaces
should comply with
the description
standards of
customers.
l If the customers do not
have the description
standards, following
the rule: Local device
name-Local port
number->Peer device
name-Port number-//
Interface speed.
IP interface Run the display ip
interface brief
command.
l Check the IP address
of the interface.
l The displayed
information includes
IP address, physical
status of the interface,
protocol status, and
interface description.
IP address Run the display
interfacecommand.
l For the IP addresses of
the interfaces betweennetwork devices, the
subnet mask contains
30 bits.
MTU Run the display
interface
command.
l The MTU is the same
as the MTU of the
connected interface.
Statistics on
an interface
Run the display ip
interface
command. After
five minutes, run the
command again.
Then collect data
twice and compare
the data.
l If the system runs
normally, the data
does not change when
you run the command
for the second time
and the value is equal
to or smaller than 500.
Mirroring
port
Run the display
port-mirroring
command.
l If a mirroring port is
not used, run the undo
observe-port
command to delete it.
FTP port Run the display ftp-
server command.
l The FTP port not in
use should be shut
down.
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Maintenance Item Operation Guide
Standards forReference Result
Cleaning View the outside
and inside of the
chassis, the air filter
in the chassis, the
floor, and the table
top.
l No obvious dust
exists.
l If the air filter is
covered by dust, clean
or replace it in time;
otherwise, the heat
dissipation in the
chassis is affected.
Heat
dissipation
View the heat
dissipation
condition in the
chassis.
l When the device
works normally, all
the fans should
operate normally
(except for the fansthat are being
cleaned). Power off
the fans will increase
the temperature of the
device, and the boards
may be damaged.
l Do not place anything
at the air intake of the
chassis and clean the
fans and air filter
periodically.
Cable layout View the cable
layout in the chassis.
l The power cables
should be separated
from the service
cables. The cables
should be deployed
orderly.
Cable label View the cable
labels in the chassis.
l The labels are clean,
correct, and
standardized.
Appearance
of the chassis
Check whether the
chassis is complete.
l Check whether the
chassis is complete.
The chassis should not
be damaged or go
moldy. The blank
panel is installed in the
empty slot.
5 Reference for Routine Maintenance Items and Operations
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Maintenance Item Operation Guide
Standards forReference Result
Heat
dissipation in
the chassis
Check whether heat
dissipation in the
chassis is normal.
l The air intake is not
covered by dust and
the heat dissipation in
the chassis is normal.
If the air filter is
covered by dust, clean
it in time. It is
recommended to clean
the air filter quarterly.
For details, see 2.3.1
Cleaning the Air
Filter.
Undesired
configuration
s
Run the display
current-
configuration
command.
l All the configurations
should be useful;
otherwise, delete the
undesired
configurations.
Power supply
backup
Check whether the
power supplies are
backed up.
l The S9312 and S9306
both have four power
supplies and the
S9303 has two power
supplies. The switches
of the power supplies
that work in backup
mode are in On state.
l If there is no backup
power supplies, record
the event.
Fire
protection
Check the key
components such as
chassis, subrack,
and cabling trough.
l No fire risk exists and
all the fire protection
facilities are normal.
Guard against
theft
Check the doors,
windows, and
security mesh of theequipment room.
l All the doors,
windows, and security
meshes are normal.
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Maintenance Item Operation Guide
Standards forReference Result
OSPF Router
ID
Run the display
current-
configuration
configuration ospf
ordisplay router
id command.
l The router ID should
be the address of the
Loopback interface.
l If no address is
assigned to the
Loopback interface,
you must specify the
router ID as the
address of an uplink
interface or the
interface with
minimum probability
of being Down.
l The configured router
ID must be the same as
the router ID used by
OSPF.
Importing
OSPF routes
Run the display
current-
configuration
configuration ospf
command.
l You are advertised to
run the network
command. You can
also configure the
device to import
routes.
OSPF virtuallink
Run the displayospf vlink
command.
l Using OSPF virtuallinks is prohibited.
OSPF stub
area
Run the display
current-
configuration
configuration ospf
command.
l The import-route
command cannot be
used in a stub area.
OSPF errored
packets
Run the display
ospf error
command. After
five minutes, run the
command again.
Then collect data
twice and compare
the data.
l In the normal
situation, the collected
data does not increase.
Importing IS-
IS routes
Run the display
current-
configuration
configuration isis
command.
l You are advertised to
run the network-
entity command. You
can also configure the
device to import
routes.
5 Reference for Routine Maintenance Items and Operations
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Maintenance Item Operation Guide
Standards forReference Result
ISIS system
ID
Run the display
current-
configuration
configuration isis
ordisplay current-
configuration |
include network-
entity command.
l The system ID is an
extension of the
address of the
Loopback interface.
l If the Loopback
interface is not
assigned an address,
set the system ID to
the address of the
uplink interface.
IS-IS address Run the display
current-
configurationconfiguration isis
command.
l Normally, up to three
areas can be
configured.
Advertising
BGP routes
Run the display
current-
configuration
configuration bgp
command.
l Do not advertise the IP
routes through the
import-route
command, except the
VPN routes.
l Run the networkand
ip route-staticip-
address { mask| mask-
length } null0commands to
aggregate routes
manually, and then
advertise the routes.
Static routes Run the display ip
routing-table
protocol static
command.
l Avoid redundant
static routes.
IBGP peers Run the display
current-
configuration
configuration bgp
command.
l To keep the protocol
stability, you are
advised to set up peer
relationship by using
Loopback interfaces,
which are always Up.
CCC
connections
Run the display vll
ccc command.
l The value of "state"
should be "up."
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Maintenance Item Operation Guide
Standards forReference Result
SVC VLL Run the display
mpls static-l2vc
command.
l The value of "AC
Status" should be
"up."
l The value of "VC
State" should be "up."
VLL
connection in
Martini mode
Run the display
mpls l2vc
command.
l The value of "Session
State" of the LDP
session should be
"up."
l The value of "AC
Status" should be
"up."
l The value of "VC
State" should be "up."
VLL
connection in
Kompella
mode
Run the display
mpls l2vpn
connection
command.
l When all the L2VPN
connections in
Kompella mode are
checked, the value of
"connections" should
be "up."
l When the L2VPN
connection in
Kompella mode on thespecified interface is
checked, the value of
"local vc state" should
be "up" and the value
of "remote vc state"
should be "up."
VPLS
connections
Run the display
vpls connection
command.
l The value of
"VCState" should be
"up."
VPN routes Run the display ip
routing-table vpn-instance command.
l The routes destined
for the peer CE exist.
Routing
attribute sent
or received by
a VPN
instance
Run the display ip
vpn-instance
verbose command.
l The values of "Export
VPN Targets" and
"Import VPN Targets"
should be correct.
5 Reference for Routine Maintenance Items and Operations
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Maintenance Item Operation Guide
Standards forReference Result
BPDU tunnel
status
Run the display
bpdu-tunnel global
config command in
the system view to
check the global
BPDU
configuration.
Run the display stp
[ interface
interface-type
interface-number1
[ tointerface-
number2 ] [ brief ]
command to checkwhether the device
can send or receive
the STP BPDUs.
l The value of
"BridgeRole" of the
CE should be
"customer." The value
of "BridgeRole" of the
PE should be
"provider."
l If the value of "Status"
of an interface is
"Normal," it indicates
that no loop exists in
the VLAN where the
interface resides.
l If the value of "BPDU
Sent" is not 0, it
indicates that the
interface can send the
STP BPDUs.
l If the value of "BPDU
Received" is not 0, it
indicates that the
interface can receive
the STP BPDUs.
MSTP status Run the display stpbriefcommand.
l
The STP status of thespecified port and the
root port should be
"FORWARDING."
l The STP status of the
backup root port
should be
"DISCARDING."
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Maintenance Item Operation Guide
Standards forReference Result
LDT loop
detection
Run the display
loop-detection
command.
Run the display
loop-detection
[ interface
{ interface-type
interface-number|
interface-name }]
command.
When the LDT functions
are configured normally,
l If no ports are
displayed in
"Following ports are
block for loop" and
"Following ports are
shutdown for loop," it
indicates that no loop
exists in the VLAN
where loop detection
is enabled.
l If the value of "Status"
is "Normal," it
indicates that no loop
exists in the VLAN
where the interface
resides.
Smart Link
status
Run the display
smart-link group
command.
l The value of
"Member" of the
Smart Link group is
correct.
l The master interface
should be in ACTIVEstate.
l The slave interface
should be in
INACTIVE state.
RRPP status Run the display
rrpp verbose
domain command
on the active node.
l The value of "Ring
State" should be
"Complete."
l The value of "Port
status" of the primary
port should be "