Upload
others
View
22
Download
0
Embed Size (px)
Citation preview
1 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
Sven Simonsson [email protected]
Partner Update 2010-03-31
2 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
Agenda General introduction & Hardware overview of C2960-S
... and 3560-X / 3750X
New ASIC: S88G
FlexStack – Stacking feature on C2960-S family
New Features and differences from C2960
Performance & Latency
3 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
Nästa Webinar - 14/4, Marcus Dikvall presenterar:
Cisco User Connect Licensing (UCL). Ny licensmodell för Cisco UC!
Cisco User Connect Licensing (UCL) är en ny användarcentrisk licensmodell för Cisco’s Unified Communica@ons 8.0 produkter. Lyssna in på denna session för aE få reda på mer om hur denna modell underläEar UC configura@oner samt gör Cisco UC/Collabora@on erbjudandet mindre komplex.
Berörda produkter: IP telephony, mobility, conferencing, presence, clients och messaging.
4 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S TOI: Overview
Functional description
Physical characteristics
Other Hardware features
New CPU – AMCC
Market and customer overview
Performance enhancements
5 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S Overview
Catalyst 2960-S series switches – Full Gigabit Ethernet 48 or 24 10/100/1000 downlink ethernet interfaces
10Gigabit uplink functionality in Catalyst 2960 family
Stackable with FlexStack Technology Hot Swappable Optional FlexStack 20Gig Bandwidth
Sustainability - GREEN Very low power for Gigabit Ethernet Switch
New EnergyWise functionality to control PHY power
Half the power of C2960G 10 Gig uplinks with SFP+
802.3at POE+ / POE budget: 740W or 370W Adding POE+ support to C2960 product family
Supports SFP or SFP+
Enhanced Limited Lifetime Warranty Next Business Day Replacement (NBD)
90 days TAC support after product ships
6 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S Model comparison
Model Cisco FlexStack
Stacking 10G SFP+ Ports
1G SFP Ports
10/100/1000 Ports
Full PoE (15.4W) ports PoE Budget
10G Uplink Ports
WS-‐C2960S-‐48FPD-‐L √ 2 48 48 740W (PoE+)
WS-‐C2960S-‐48LPD-‐L √ 2 48 24 370W (PoE+)
WS-‐C2960S-‐48TD-‐L √ 2 48
WS-‐C2960S-‐24PD-‐L √ 2 24 24 370W (PoE+)
WS-‐C2960S-‐24TD-‐L √ 2 24
1G Uplink Ports
WS-‐C2960S-‐48FPS-‐L √ 4 48 48 740W (PoE+)
WS-‐C2960S-‐48LPS-‐L √ 4 48 24 370W (PoE+)
WS-‐C2960S-‐48TS-‐L √ 4 48
WS-‐C2960S-‐24PS-‐L √ 4 24 24 370W (PoE+)
WS-‐C2960S-‐24TS-‐L √ 4 24 LAN Lite 1G Uplink Ports
WS-‐2960S-‐48TS-‐S 2 48
WS-‐2960S-‐24TS-‐S 2 24
7 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S Characteristics
10/100 Ethernet for Out Of Band (OOB) network mgmt new for C2960-S series
USB Flash - type A, external Flash storage
USB console (type B) and RJ45 console supported
Dram: 128MB
On board Flash: 64MB
Low Latency - No ingress buffering
RPS support: CAB-E type cable. (CAB-RPS2300-E=)
8 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
Catalyst 2960-S SW Enhancements
GOLD – OnLine Hardware Diagnostics Crypto images (K9) – shipped from Mfg
Non-crypto images not supported?
Single SDM Template – Fixed TCAM Resources More security ACL resources than Catalyst 2960 IPv6 functionality built-in to TCAM Resources No modification and reboot required
9198 Bytes max MTU 9000 bytes max for Catalyst 2960
OBFL – HW failure logging capability Increased ACL resources
9 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S HW Enhancements from C2960 New HW Features over current C2960 family
Fa0 – on front faceplate
OOB mgmt – same C3750E
USB console – on front faceplate
USB Flash – on front faceplate
Gig switch with POE / POE+ - full 802.3at supported
POE+ (support in future IOS release)
Full POE (740W budget for Class 3 devices)
SFP+ on 10Gig switch models only
Power & space savings
ILET-AUTHENTICATION Main board and FlexStack module
Performance Increase – Lower Latency
Less Power consumption More efficient Power supplies
10 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
Uplevel conversation – leverage Borderless Network advantage (Borderless Network)
Demonstrate the differentiated value of the IP Base and IP Services offerings, along with technical services
New Catalyst 2960-S, 3560-X and 3750-X warranty have Enhanced Limited Lifetime Warranty
NBD replacement 90 days TAC support
Call To Action
Hardware Warranty
Compelling Hardware Warranty and Software Polices
Software Policy Lifetime software updates (Base image)
Service Package Flat platform pricing on SmartNet
NEW
NEW
NEW
11 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
Cisco Warranty Cisco Smart Foundation Cisco SMARTnet
Duration of Coverage
Enhanced Limited Lifetime
▪ 1-year renewable (45% < SNT NBD) ▪ 25% off 1-yr price
for 3 yrs or 40% off 1-yr price for 5
yrs
▪ Annual contracts ▪ Multi-year
contracts
TAC Hours 90 days (9x5) 9x5 to SMB TAC 24x7 Cisco TAC
Web Support For downloading SW releases only
Cisco.com SMB knowledgebase
Cisco.com knowledgebase
Advance Hardware
Replacement (AHR)
NBD NBD AHR ▪ 8x5xNBD AHR ▪ 8x5x4 AHR ▪ 24x7x4 AHR ▪ 24x7x2 AHR
On-Site Support No No Yes
C2960-S Warranty Coverage
12 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S Market – Who’s Buying
“Value” customers City Governments
School systems and Universities
Position in Network : L2 edge switch Campus
UpSell to C3750-X when HA is a strong requirement
Very low power Gig Switch
Low Latency Top Of Rack deployment in Data Centers
13 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S family Product Photos
C2960-S 1Gig uplink models
C2960-S 10 Gig uplinks models
14 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S 2 10Gigabit Uplinks Frontpanel
2 10Gigabit SFP+ interfaces
10/100 Out of Band Ethernet
Management interface
RJ45 Console Interface USB Console (type B)
USB Flash (type A)
Model: C2960S-24TD-L
15 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S SFP+ 10Gig
SFP+ supported in 10Gig Models SFP / SFP+ interchangeable
*100MB SFPs Not supported in 10Gig models
Additional SFP+ models support as released.
See data sheet
SFP+ Module Description
SFP-H10GB-CU1M= SFP-H10GB-CU3M= SFP-H10GB-CU5M=
Copper 10Gig SFP+ modules 1-m , 3-m, 5-m 10G SFP+ Twinax cable assembly
SFP-10G-SR= SFP-10G-LR= SFP-10G-LRM=
Optical 10Gig SFP+ modules 10GBASE-SR SFP+ transceiver module for MMF 10GBASE-LR SFP+ transceiver module for 10GBASE-LRM SFP+ transceiver module for MMF
SFP+
16 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S Supported SFP modules SFP Transceiver Description
GLC-BX-D= GLC-BX-U=
1000BASE-BX SFP, 1490NM 1000BASE-BX SFP, 1310NM
GLC-FE-100BX-D= GLC-FE-100BX-U= GLC-GE-100FX= GLC-FE-100FX= GLC-FE-100LX=
100BASE-BX SFP, 1490NM 100BASE-BX SFP, 1310NM
100BASE-FX SFP for GE SFP port 100BASE-FX SFP for FE SFP port
100BASE-LX SFP
GLC-LH-SM= GLC-SX-MM= GLC-ZX-SM=
GLC-T=
GE SFP,LC connector LX/LH transceiver GE SFP, LC connector SX transceiver
1000BASE-ZX SFP 1000BASE-T SFP
CWDM-SFP-1470= CWDM-SFP-1490= CWDM-SFP-1510= CWDM-SFP-1530= CWDM-SFP-1550= CWDM-SFP-1570= CWDM-SFP-1590= CWDM-SFP-1610=
CWDM 1470 NM SFP Gigabit Ethernet and 1G/2G FC CWDM 1490 NM SFP Gigabit Ethernet and 1G/2G FC CWDM 1510 NM SFP Gigabit Ethernet and 1G/2G FC CWDM 1530 NM SFP Gigabit Ethernet and 1G/2G FC CWDM 1550 NM SFP Gigabit Ethernet and 1G/2G FC CWDM 1570 NM SFP Gigabit Ethernet and 1G/2G FC CWDM 1590 NM SFP Gigabit Ethernet and 1G/2G FC CWDM 1610 NM SFP Gigabit Ethernet and 1G/2G FC
Note: Not all SFP modules supported in all C2960-S models
17 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S AirFlow
Air Flow is side to rear.
Blower pulls air from the sides
18 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S CPU
CPU: AMCC 405EX 64MB Flash Memory NOR – Spansion or Intel P30
128MB DDR2 Memory
4 bits of ECC for the DDR2 16 bit bus
PowerPC core (same as CPU on C2960)
System Clock 33Mhz,
DDR2 clock is 400Mhz
GDB command: gdb-bleeding.ppc.405 C2960S-universalk9-mz.sun
{from the directory containing sun file ..}
19 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S IOS SW
FCS image : 12.2(53)SE1 Image name: C2960s-universalk9-tar.12.2.53.SE1
“winter 2010” image from LSBU
Single universal image for all models (including LAN Lite)
No licensing required. “show license” command will work
License is bound to switch model.
No upgrades
“K9” by default. No non-K9 image available.
Future releases for C2960-S on 12.2()SE train from LSBU
Cannot upgrade from LAN Lite to LAN Base!!!!
20 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S - Delta from C2960
SDM Template – Single SDM Template
Different for LANBase and LAN Lite
LEDs – for Fa0 and active console media (USB or RJ45)
RPS2300 support - 23-pin DC power input for RPS 2300
No ingress queuing 2MB egress buffering for all interfaces – same as C2960 asic
EnergyWise enhancement - PHY power control Set the EW “level” at the interface.
Levels 1-3 will put interface into sleep mode.
Saves ~125mW per interface, 2.5W 24Port switch, 5W 48Port
21 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S SDM Template SDM Template for LanBase comparison table TCAM resource C2960-S C2960
Default C2960 QOS C2960 Dual
IPv4 IPv6
unicast mac addresses
8K 8K 8K 8K
IPv4 IGMP groups 0.25K 0.25K 0.25K 0.25K
IPv6 multicast groups
0.25K 0 0 0.375K
IPv4/MAC qos aces 0.375K 0.125K 0.375K 0.125K
IPv4/MAC security aces
0.375K 0.375K 0.125K 0.375K
IPv6 qos aces 0 0 0 0
IPv6 security aces 0.125K 0 0 0.125K
Switch# show sdm prefer
22 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S Product Numbering System
WS-C2960S-48FPD-L
Switch Type Options: S = S series
Port Type Options: F = Full InLinePower (740W) L = Partial InLinePower (370W) P = Inline Power Model T = Non-InLine Power model D = 10Gig SFP+ UpLink S = 1Gig SFP Uplink
L = LAN Base S = LAN Lite
LAN Base and LAN Lite are distinguished by last Letter
Number of Downlink ports
23 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S Chassis Dimensions Model Depth Width* Height C2960S-24TD-L / 2x10Gig Uplinks 11.77” 17.50” 1.75”
C2960S-48TD-L / 2x10Gig Uplinks 11.77” 17.50” 1.75”
C2960S-24PD-L / 2x10Gig Uplinks 15.19” 17.50” 1.75”
C2960S-48LPD-L / 2x10Gig Uplinks 15.19” 17.50” 1.75”
C2960S-48FPD-L / 2x10Gig Uplinks 15.19” 17.50” 1.75”
C2960S-24TS-L / 4x1Gig Uplinks 11.77” 17.50” 1.75”
C2960S-48TS-L / 4x1Gig Uplinks 11.77” 17.50” 1.75”
C2960S-24PS-L / 4x1Gig Uplinks 15.19” 17.50” 1.75”
C2960S-48LPS-L / 4x1Gig Uplinks 15.19” 17.50” 1.75”
C2960S-48FPS-L / 4x1Gig Uplinks 15.19” 17.50” 1.75”
C2960S-24TS-S / 2x1GigUplink 11.77” 17.50” 1.75” C2960S-48TS-S / 2x1Gig Uplinks 11.77” 17.50” 1.75”
‘*’ – width is 17.70” when accommodating screws on sides
24 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C3560-X / C3750-X TOI
StackPower
Catalyst 3750-X and 3560-X Series
26 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
Catalyst 3750-X and 3560-X Series System Characteristics
Management ports with configurable behavior
RJ45 serial & USB type-B consoles
10/100 Ethernet port for OOB management Support SFP+ for 10G instead of X2 USB port Type A for Storage, All Cisco supported USB flash drives
Type mini-B as console port in the front DRAM 256 Mbyte, Flash 128Mb
Full support for network based power management – EnergyWise
System Characterstics
LAN Base vs. IP Base and IP Services Highlights
Supports StackWise Plus
29 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
Catalyst 3750 Models comparison Catalyst 3750 Models Comparison
30 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
Catalyst 3750-X & 3560-X Model comparison Catalyst 3750-X & 3650-X
31 © 2009 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
HARDWARE ARCHITECTURE POWER TRAIN
Core Features
Hardware Arhitecture Power Train
Under the hood
33 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
Cat3k X-Series Power train
StackPower & XPS
The ability to load share power between systems in a “Power Stack” for “pay-as-you-grow”, redundancy, and Green Power reasons.
Power Supply – Front End Power FRU-able, high density, efficient AC and DC input supplies
BMP – Board Mount Power (Down design) An Intermediate Bus Converter to enable and transform 56v down to 12v
Efficient DC-DC converters
Instrumentation to collect vital statistics (power, voltage) and “black box recording” capabilities
Cat3k X-Series
34 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
StackPower Main features
Innovative technology, aggregates and shares available input power capacity in a Stack
Flexible arrangement of power supplies in a stack
Up to 8.8Kw power in a stack
Supports a “zero-footprint” RPS deployment Intelligent load shedding
Stackpower decouples a PS from its physical location in the stack! Up to 4 switches can be part of Stackpower Independent from Stackwise (Stackwise Plus)
No need for RPS though an XPS is available!
Industry Leadership
StackPower
35 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
StackPower Close up
Redundant, Dual PS, either AC/AC, AC/DC, AC, or DC combinations
StackPower Cables
FRU Dual Redundant Fans
Same Stackwise Plus
Console, 10/100 port, and USB type A
StackPower Close up
36 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
StackPower Modes & Topology Power Share, Redundant Modes, & RPS mode
The Catalyst 3750-X supports Power share, Redundant, & RPS modes
Includes power sharing across Cat3750X switches
Ring & Star topologies
Ring is Stackpower & Star is XPS
XPS (future availability) can Not be deployed in a Ring topology
The power shelf can not be part of a Stackpower ring
The Catalyst 3560-X ONLY supports RPS mode with an XPS
In the Star Topology, a XPS must be the hub
Up to nine switches can be connected to the power shelf
Either Catalyst 3750-X, Catalyst 3560-X or a combination of switches.
XPS detects Catalyst 3750-X Vs. Catalyst 3560-X
StackPower Modes & Topology
37 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
Stackpower topologies Ring and Star
Two deployment topologies:
Ring – a maximum of 4 switches in a Stackpower
Star – up to 9 switches, attached to a Power shelf
Up to 20 PS in one power stack (include the Power shelf PS)
Stackwise can span over two power stacks (4 switches)
Power stack can span over two or data stacks too but it is Not Recommended!
StackPower 1
StackPower 2
One Data Stack (Stackwise)
Stackpower topologies
38 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
StackPower Capabilities Overview
715w
350w
715w
350w
Switch A Full POE on 48-ports 740w PoE Need = 986w
Switch D 48-ports, Data Only, Needs 246w
Switch C Full POE+ on 48-ports 1,440w PoE Needs 1,686w
Switch B 48-ports, Data Only, Needs 246w
Power requirements: 246w * 4 + 740 + 1440 = 3,172w Available Power = 2,130w Deficit = 1,042w
Options: 1) Add one 1,100w PS slot B of any switch to cover the deficit.
2) Add two 1,100w PS to any two switches in slot B to cover 1,042w deficit plus 1,100w for redundancy. Extra capacity for zero-footprint RPS functionality.
Note capability to boot up a switch that doesn’t have a PS and even provide PoE+ on that switch. Stackpower can provide complementary power as well as Redundant power depending on requirements and configuration.
X
X
X
X
StackPower
39 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
StackPower Modes Power share, Redundant, RPS modes
Power Sharing mode Redundant mode
Entire available power of 3,300w is available to the system. Switch and PD requests for more power is granted until all 3,300w are used. No redundancy
Overall capacity is 3,300w –1,100w is reserved for redundancy. Available Power to share is 2,200w and there is an extra 200 W available for allocation. Should a PS fail, then the reserved power is made available for the stack.
B
A
B A
A
A
B
1,100w 0w
500w
500w
500w
500w
B
1,100w 1,100w
B
A
B A
A
A
B
1,100w 0w
500w
500w
500w
500w
B
1,100w
Reserved Power 1,100w
StackPower Modes
40 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
Best Practice Balance PS across the stack
Total Input Power = 5,400w
Total Output Power = 4,400w
The right half generates only 20A but consumes 80A
Stackpower cables are limited to ~40A
In failure scenario, Stackpower could be oversubscribed; console messages will warn about the condition and Intelligent power shed will occur.
500w
500w
A B
1,100w
1,100w
A B
1,100w
1,100w
A B
2,000w
A B
2,000w
200w
200w
X 30 A
60 A
30 A
Recommendation: 1. Balance PS across all systems, and
• insist on filling up PS slot A on every switch in the stack, before using slot B on any switch!
Best Practices
41 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
Intelligent Load shedding
The amount of load shedding depends on the amount of oversubscribed power
Actual – power drawn
Allocated – assigned power from available pool
Shed power – amount of power in excess of allocated power
Intelligent mechanism to shed load during failure scenarios
Built-in intelligence detects important PD or switches in a stack
Shedding is based upon priorities
Can be customized
Intelligent Load shedding
42 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
Show commands
show stackpower
Stackpower mode and name
Load shedding priorities – switch, high and low priority ports
Neighbor status and MAC addresses
Detailed info about each power stack
Multiple power stack per data stack are possible.
Total available power, Used power, Remaining power
Show commands
43 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
Show commands… Priorities
Show stack-power Power stack name: Powerstack-11 Stack mode: Power sharing Switch 3: Power budget: 1646 Low port priority value: 21 High port priority value: 12 Switch priority value: 3 Port 1 status: Not shut Port 2 status: Not shut Neighbor on port 1: 0027.0d3b.d300 Neighbor on port 2: 0027.0d3b.de00
Switch 2: Power budget: 1646 Low port priority value: 22 High port priority value: 13 Switch priority value: 4 Port 1 status: Not shut Port 2 status: Not shut Neighbor on port 1: 0027.0d3b.d780 Neighbor on port 2: 0027.0d3b.d300
Show commands
44 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
Show commands…
show env all Display status of each power supply
show power inline
Display available/used PoE power
PoE power contributed to the pool by each PS
Show power inline priority
Display priority level for every port in the stack
Show commands
45 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
Stackpower Scalability Stackwise vs. StackPower
Why a power stack supports only 4 switches?
UL requirement of 41.6A per power stack port StackPower cable max length 1.5m
A switch cannot share more than ~2000w per stack port
Safety devices built-in to prevent over-current
Just FET (Field Effect Transistor) open up circuit and cut current flow…Safe!
Stackpower Scalability
46 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
Cisco StackPower Summary
Better utilization of available power capacity and sharing
Scalable infrastructure for PoE+
Improved reliability and efficiency
PS can be configured as redundant failovers
Complements PoE+ on switches with smaller PS
“zero footprint” RPS (Redundant mode)
Except in a fully loaded POE+ stack (Stackpower of 4 w/ all PoE+)
Increased HA via a resilient Redundant power system
Pay-as-you-grow architecture – similar to Stackwise
Cisco StackPower
47 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
Cisco StackPower Summary (cont.)
1+n redundancy Vs. 1:n redundancy
1+n is better because power is already available online! Efficiency improvements –Green Power feature
Off-lining supplies when extra capacity is available in the system
Not automatic but customer driven action! Flexible installations – AC outlet requirement is reduced
four x 250W PS vs. one x 1.1KW PS
“zero footprint” RPS, no need for more outlets and cooling in the closet.
Cisco StackPower
48 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
Dual Redundant Power supplies & fans Main features
New high efficiency PS
Support for two FRU power supplies per switch
Can combine AC and DC power supplies
Second PS is for redundancy or supplemental power
48-port of PoE+ requires 1.4KW
Flexible PS options including DC with PoE support Ability to off-line a PS and draw power from the stack
FRU redundant Fans
FRU redundant Power supplies
Dual Redundant Power supplies & fans
49 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
Dual Redundant Power supplies & fans Main features
Four PS options
1100W AC – C3KX-PWR-1100WAC
715W AC – C3KX-PWR-715WAC
350W AC – C3KX-PWR-350WAC
440W DC – C3KX-PWR-440WDC (future availability)
Dual, redundant, high efficiency PS
Can combine AC & DC PS in the same switch
Redundant fans Models
24 Port Data Switch 48 Port Data Switch 24 Port PoE Switch 48 Port PoE Switch 48 Port Full PoE Switch
Default Power Supply
C3KX-PWR-350WAC
C3KX-PWR-715WAC
C3KX-PWR-1100WAC
Available PoE Power
N/A
435W
800W
Dual Redundant Power supplies & fans
50 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
Power Supply – Front end Power Typical Efficiency curve
80% Efficiency at 10% load
Efficiency up to 92% at any load between 25% and 90%
New Power supplies Older Power supplies
Power Supply
51 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S TOI – S88G - ASIC
New ASIC S88G
Physical characteristics
Asic Architecture
Path of a packet in the ASIC
52 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
What is Strider88G?
Single Chip 48G + 4XG switch ASIC Integration of:
4 x Strider (port asic) ASICs with table sizes optimized for C2960 1 x MadMax (switching asic)
QSGMII phy interface for low power and savings in PCB routing space
PCI-e supervisor interface for future proofing and SMB support
For a 48G + 4XG SKU, the Strider88G advantages over a StriderCR/MadmaxCR solution are:
ASIC count goes from 5 to 1 Power Dissipation goes down from 90W to 25W Component savings MTBF
53 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
Strider88G Architecture
Reused from Strider and MAD Max Core
Vendor Core
New Design
XGXS x4
Strid
er D
P
26x1
G
Network Interface
PCIe x1
HULC MIC
QSGMII x12
Supervisor Interface
Strid
er D
P
2x10
G
Strid
er F
C
TX Packet Buffer
MEM MEM
MEM MEM
MADMAX
FIFO
• Asic S88G (aka Strider 88G) • C2960-S first switch family to use the ASIC. • Using components from C3750-E series switch.
54 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
Changes From StriderCR
Reduced Forwarding Table sizes: 1.5Kx276 hwm TCAM for ACL – SW merge TCAM
removed L2 table size reduced from 16K -> 8K; L3 table 8K -> 2K 256 entry overflow TCAM for L3 routes and overflow
entries
Reduced TX Buffer size: Strider supported 2MB (4 Striders = 8MB) Strider88G will support 2MB total buffer size
Replaced: SGMII with QSGMII
Increased: FC speed from 166MHz to 282MHz
Added: PCI-e supervisor interface Added: Network Processing Mode for Stack interfaces
55 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
Major Interfaces per Slice/Data Path A Slice is ¼ of the ASIC. 4 Strider slices in 1 S88G
Slice is also referred to as a Data Path
12 QSGMII – (Quad Serial Generic Media Independent Interface) combines four GigE lanes into a single serial channel at 5Gbps
1 PCIe 1.1 – (Peripheral Component Interconnect express) serial 2.5Gbps interface, 250MBytes per second rate. PCIe is a layered protocol, consisting of a Transaction Layer, a Data Link Layer, and a Physical Layer.
4 XAUI: Each XAUI Interface supports: – 10G Mode (XAUI): Four 3.125Gbps channels – Dual GigE Mode: Two SGMII – Interface supports the X2 , CX4, and SFP+ modules
HULC MIC interface - Not used by C2960-S
56 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
System Block Diagram
57 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
3 * 4I
C2960-S Asic ‘S88G’ Diagram based on C3750E ASIC
4 Data paths, 2 Strider Forwarding Controllers
2 slices in the ASIC. Slices share a Forwarding controller
All Data paths share the Universal Packet Buffer
Slice1 Data Path1
Slice1 Data Path2
Shared Fwd Ctlr (TCAM)
Slice2 Data Path1
Slice2 Data Path2
Shared Fwd Ctlr (TCAM)
Universal Packet Buffer (UPB) 2MB
2* 10G MAC or Stack Port
2* 10G MAC or Stack Port
MAC Layer 8 ports 3 * 4G QSGMII 3 * 4G QSGMII MAC Layer 8
ports
Octal Phy Octal
Phy Octal Phy
Octal Phy Octal
Phy Octal Phy
58 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
Transmit Fifo
C2960-S ASIC ‘S88G’ Packet Flow Showing Single Data Path
Ingress and Egress flow on S88G for a single Data path.
MAC Layer Vlan Decapsulation Ingress
UPB (Shared for all 4 Data paths)
Receive Port Fifo
Receive Data Fifo
FWD Controller
Packet Header &
Descriptor
Packet Header & Descriptor
MAC Layer Vlan Decapsulation
Egress
MAC Vlan Encap
MAC Vlan Encap
Port 0 Port 1 Port 2
Sneak port
Packet, Packet
Header & Descriptor
Packet Packet
Port 14 Port 15 Port 16 Supervisor Intf
Packet Header
Fifo
Fifo
Fifo Scheduler controller
Transmit Port & Queue SRR Scheduler
CPU
Frame Descriptor & Control
Packet
Packet
Packets
Packets
59 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S Stack Port Mapping
Stack ports are 10Gig interfaces running in “NP” mode NP = Network Processor
An additional Stack header is pre-pended to the packet prior to egress
Stack ports on different Data Paths on different models Model Stack port
1 Stack port 2
10Gig uplink 1
10Gig uplink 2
C2960S-48LPS-L C2960S-48FPS-L C2960S-24PS-L C2960S-48TS-L C2960S-24TS-L
DataPath 0, port 14
DataPath 1, port 0
NA NA
C2960S-24TD-L C2960S-48TD-L C2960S-24PD-L C2960S-48FPD-L C2960S-48LPD-L
DataPath 1, port 0
DataPath 1, port 14
DataPath 0, port 0
DataPath 0, port 14
60 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S Asic: Port Asic to Interface map
C2960S-48LPS_# show platform pm if-numbers interface gid gpn lpn port slot unit slun port-type lpn-idb gpn-idb ---------------------------------------------------------------------- Gi1/0/1 1 1 1 0/2 1 1 1 local Yes Yes Gi1/0/2 2 2 2 0/1 1 2 2 local Yes Yes <snip> Gi1/0/9 9 9 9 0/10 1 9 9 local Yes Yes Gi1/0/10 10 10 10 0/9 1 10 10 local Yes Yes Gi1/0/11 11 11 11 0/12 1 11 11 local Yes Yes Gi1/0/12 12 12 12 0/11 1 12 12 local Yes Yes Gi1/0/13 13 13 13 0/16 1 13 13 local Yes Yes Gi1/0/14 14 14 14 0/15 1 14 14 local Yes Yes Gi1/0/15 15 15 15 0/18 1 15 15 local Yes Yes Gi1/0/16 16 16 16 0/17 1 16 16 local Yes Yes <snip> <member Change> Gi2/0/22 76 76 22 1/23 2 22 22 remote No Yes Gi2/0/23 77 77 23 1/26 2 23 23 remote No Yes Gi2/0/24 78 78 24 1/25 2 24 24 remote No Yes Gi2/0/25 79 79 25 0/13 2 25 25 remote No Yes Gi2/0/26 80 80 26 0/27 2 26 26 remote No Yes Te2/0/1 81 81 27 0/0 2 1 27 remote No Yes Te2/0/2 82 82 28 0/14 2 2 28 remote No Yes Gi3/0/1 109 109 1 0/2 3 1 1 remote No Yes Gi3/0/2 110 110 2 0/1 3 2 2 remote No Yes
Asic Port 13 & 14 are missing
Asic ports 0, 13, 14 used for TenGig and Stack ports
Asic port 0, 14 are TenGig
61 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S TOI - FlexStack
FlexStack – Stacking on C2960-S FlexStack overview
FlexStack: path of a packet
Passive link
QOS Stack port
Queue set
Statistics
62 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
Catalyst 2960-S FlexStack
FlexStack available with optional Module Hot Swappable with two wire-speed 10G ports
Copper cables, NOT fiber. No SFP needed
Up to 4 switches in a stack
Unified switch management, and control similar look and feel as StackWise
3 FlexStack Cable lengths supported. Cisco Proprietary 0.5 meters, 1.0 meter, 3.0 meter
63 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S FlexStack Stacking
Cross-stack EtherChannel, SPAN, and FlexLink supported
EtherChannel physical links across stack members
Pre-Provisioning of stack members supported Easy member addition and replacement Configurable Stack Master
Following same Master election rules as StackWise Plus
Support same CISCO-STACKWISE-MIB Single Spanning tree node: No spanning-tree across
stack Stack link topology change is handled in SW, not HW
Data flow recovery needs SW involvement
64 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S FlexStack Module FlexStack Module inserted in the left rear of the switch.
FlexStack module is optional for C2960-S switch operation
Yes – Hot Swappable
Blank plate required when FlexStack Module not inserted
Note: Tabs on FlexStack cables are opposite each other
65 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S No Flex StackModule Blank Inserted
The Blank module must be present if the FlexStack Module is not present.
Required for proper airflow.
Same physical dimensions for Switch with or without FlexStack module
66 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
Not a ring Architecture. Packets traverse stack Hop by Hop
Local switching of unicast packets Not switched to Stack ports unnecessarily
Proprietary header of 32Bytes pre-pended on all stack packets
Packet path determined using “shortest path” like algorithm.
based on Ingress member.
All members see the Bcast & Mcast packets
Catalyst 2960-S FlexStack - Details
67 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
2960-S Stacking Ease of Use
3750-X StackWise Plus Ease of Use and High Availability
Device Limit 4 units 9 units Stack Bandwidth 10G / 20G 32G / 64G
Architecture Hop by Hop Ring (Destination stripping) Dynamic Ring Load
Balancing No Yes
Stack Convergence 1-2 seconds Few milliseconds Stack QoS Applied hop by hop Applied on ingress
Management Single IP address, SNMP, SYSLOG Single IP address, SNMP, SYSLOG
Configuration Single config and CLI, auto image and config update
Single config and CLI, auto image and config update
Show and Debug Commands Unified Unified
Single Forwarding and Control Plane
Synchronize ARP, MAC Address, IGMP, VLAN tables
Synchronize ARP, MAC Address, IGMP, VLAN, Routing tables
Cross-Stack Features Yes Yes
Single Bridge-ID Yes Yes
Preprovison members Yes Yes
Redundancy Stack master 1:N redundancy Stack master 1:N redundancy
Easy member replacement Yes Yes
FlexStack – StackWise Plus
68 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S Managing FlexStack
FlexStack operationally equivalent to C3750
Includes: IOS image upgrades
Single Master controls stack
Master election
Member insertion and replacement C2960S-48LPS(config)# switch 1 ? priority Set the priority of the specified switch provision Configure Switch provision / offline config renumber Renumber the specified switch number C2960S-48LPS(config)# switch 1 priority 14 Changing the Switch Priority of Switch Number 1 to 14 Do you want to continue?[confirm] New Priority has been set successfully C2960S-48LPS(config)# switch 3 provision ws-c2960s-48ts-s
69 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S Managing FlexStack cont.
Show commands for managing FlexStack C2960S-48LPS# show switch ? <1-4> Switch Number detail show detailed information about the stack ring neighbors show each switch's neighbors stack-ports show the status of the stack ports stack-ring show stack ring | Output modifiers <cr> C2960S-48LPS# show switch Switch/Stack Mac Address : 0022.bdc4.1d80 H/W Current Switch# Role Mac Address Priority Version State ---------------------------------------------------------- *1 Master 0022.bdc4.1d80 14 1 Ready 2 Member 0026.0ac1.3e00 10 1 Ready
70 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S Stack Port: unique Behavior
Stack ports – 10Gigabit interfaces Same limitations as “normal” 10Gig interfaces
FlexStack Header tax (38B) for each packet transmitted on stack
Drop Table Packets dropped on Ingress Consumes buffers on egress on other side!!
Stack Port Queues “Share” BW only. Cannot be Shaped
No Expedite Queue possible
No user interface to modify Sharing BW configuration
Stack Queues share BW equally: 1/6 each queue
Cannot be changed.
71 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S FlexStack Stack Manager Msgs Uses Queue 5 and 6 for Stack Manager packets
On stack Links only
SDP - Stack Discovery Protocol (Queue 5)
HRPC – HULC Remote Procedure Call (Queue 6)
Process to process communication (eg: mac address table)
Number of packets/sec depends on stack size
In 4 member stack, normal FlexStack protocol traffic is: SDP (Q5) 17 packet/sec
HRPC (Q6) 165 packet/sec
This is per stack link.
72 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
FlexStack Architecture Overview Not a Ring Architecture!
Packets traverse stack members hop by hop
Both Stack Links active and Fwd
No load balancing on stack ports All Flows use same physical path
Passive link stops Broadcasts Shortest path algorithm used to determine passive
link
Passive link uses ingress member to determine drop
packet header contains ingress member id
All members see flooded packets once SW1
SW3 SW2
A. Packet enters stack on member 1 B. Packet FWDd on both stack links • Packet dropped between 2 & 3
B. Packet FWD on stack link
3 member stack Bcast packet example
Passive link on member 2 & 3 drop packets from member 1
prevents Bcast loops
B. Packet FWD on stack link
73 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
BroadCast Packet Behavior 4 member stack
C. BCAST loop is broken by passive
link between members 2 & 3
SW1
SW2 SW4
A. Packet enters stack on member 1
B. Packet FWD on stack link B. Packet FWD
on stack link
SW3
B1. Packet FWD on stack link
Packet with Dest Unknown enters stack on Member 1 downlink port.
From member 1, packet is FWD’d to members 2 & 3
Packet is FWD’d to SW3 from SW4
Packet is NOT FWD’d between 2 & 3 Asic on members 2 & 3 drops pkts based on source member 1.
74 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S FlexStack Packet Flow, BCAST
Packet flows in C2960-S stack are hop by hop. L2 Destination Unknown, MCAST, BCAST all the same Passive Link does not fwd packet between member 3 & 4
Member 1
Member 2
Member 3
Member 4
Passive Link prevents Fwd of packet between
members 3 & 4
Bcast Packet ingresses member 1
BCAST packet egresses on all interfaces FWDing on that vlan for all members
75 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
FlexStack: Traffic Type Behaviors
These types of connections will flood traffic throughout Stack
Cross Stack EtherChannel – all traffic towards EC. Flexlink / Backup interface – all traffic towards the FL Port monitor traffic with destination interface on another member
These types of traffic will flood traffic throughout Stack Unknown Unicast MCAST – even if only destination is local. BCAST
Known Unicast traffic is not flooded Unless towards EC or FL
Known Unicast packets do not egress on stack if locally switched
Big difference from Stackwise Similar to Stackwise+ on C3750E
76 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
FlexStack – Drop Table & Passive Link Every Stack port is active and forwarding
In 2 member stack, stack port 2 unused for data traffic
Passive Link based on “Shortest Path” like algorithm Similar to Spanning Tree link costs
Packets are dropped based on source member Source member = switch member from which packet entered the stack. Passive Link: as far from source member as possible
Passive Link prevents BCAST storms (flooded traffic) Packets dropped on egress.
Not counted because not dropped because of congestion
Bcast, Mcast and unknown UniCast packets hit every member.
“Passive link” is the link between two members Packets “appear” to drop on the passive link
“Passive” link is being message by marketing. It sounds better than drop table.
77 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S The Drop Table “Passive Link” Stack Link Neighbor Table – 4 member stack
4
3
2
1 2
2
2
2
1
1
1
1
C2960S-48LPS_#show switch neighbors Switch # Port 1 Port 2 -------- ------ ------ 1 2 4 2 3 1 3 4 2 4 1 3
Passive links color coded
C2960S-48LPS#show platform dtm drop-table Stack Port 1 Drop Tables: Node ID BLOCK/FORWARD 1 FORWARD 2 FORWARD 3 FORWARD 4 BLOCK Stack Port 2 Drop Tables: Node ID BLOCK/FORWARD 1 FORWARD 2 FORWARD 3 BLOCK 4 FORWARD
Drop table for member 1
78 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S The Drop Table “Passive Link” Stack Link Neighbor Table – 4 member stack
4
3
2
1 2
2
2
2
1
1
1
1
C2960S-48LPS_#show switch neighbors Switch # Port 1 Port 2 -------- ------ ------ 1 2 4 2 3 1 3 4 2 4 1 3
stack port
Ingress Member
1 2 3 4
1-1 BLK
1-2 BLK
2-1 BLK
2-2 BLK
3-1 BLK
3-2 BLK
4-1 BLK
4-2 BLK
Passive links color coded
Drop table “table”, with color coded
Passive links All members shown
79 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
4
3
2
1
2
2
2
1
1
1
C2960-S Passive Link Example: BCAST Member 1 Bcast ingress, use drop table to
determine stack passive link member 1 2 3 4 1-1 BLK 1-2 BLK 2-1 BLK 2-2 BLK 3-1 BLK 3-2 BLK 4-1 BLK 4-2 BLK
1. Packet ingresses on member 1 2. Packet forwarded to member 4 and member 2
2
3. Packet dropped on egress to port 1 on member 2 member 4 Forwards packet on stack port 2
4. packet dropped on egress to port 2 on member 3
80 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S Drop Table
4
3
2
1 2
2
2
2
1
1
1
1
C2960S-48LPS_#show platform dtm drop-table Stack Port 1 Drop Tables:
Node ID BLOCK/FORWARD 1 FORWARD 2 FORWARD 3 FORWARD 4 BLOCK
Stack Port 2 Drop Tables: Node ID BLOCK/FORWARD
1 FORWARD 2 FORWARD 3 BLOCK
4 FORWARD
Drop table output from member 1
Drop table output from member 2 C2960S-48LPS_# session 2
C2960S-48LPS_-2#show platform dtm drop-table Stack Port 1 Drop Tables:
Node ID BLOCK/FORWARD 1 BLOCK
2 FORWARD 3 FORWARD 4 FORWARD
Stack Port 2 Drop Tables: Node ID BLOCK/FORWARD
1 FORWARD 2 FORWARD 3 FORWARD 4 BLOCK
Note Same color, they
block packets from member
4
stack port
Ingress Member
1 2 3 4
1-1 BLK
1-2 BLK
2-1 BLK
2-2 BLK
3-1 BLK
3-2 BLK
4-1 BLK
4-2 BLK
81 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID
C2960-S FlexStack Drop Table, Non Redundant Link
When at least 1 stack link is down, all StackLink interfaces fwd for all members.
4
3
2
1 2
2
2
2
1
1
1
1
C2960S-48LPS_#show platform dtm drop-table Stack Port 1 Drop Tables: Node ID BLOCK/FORWARD 1 FORWARD 2 FORWARD 3 FORWARD 4 FORWARD Stack Port 2 Drop Tables: Node ID BLOCK/FORWARD 1 FORWARD 2 FORWARD 3 FORWARD 4 FORWARD C2960S-48LPS_-3#show platform dtm drop-table Stack Port 1 Drop Tables: Node ID BLOCK/FORWARD 1 FORWARD 2 FORWARD 3 FORWARD 4 FORWARD Stack Port 2 Drop Tables: Node ID BLOCK/FORWARD 1 FORWARD 2 FORWARD 3 FORWARD 4 FORWARD
C2960S-48LPS_#show switch neighbors Switch # Port 1 Port 2 -------- ------ ------ 1 2 None 2 3 1 3 4 2 4 None 3