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Do you think it is enough to monitor the device or link availability and performance to manage your network? But that is just the first step!Go through this slide to understand the 3 aspects of network performance management.
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www.opmanager.comManageEngine
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The 3 aspects of Network Performance
Management
Agenda
• Network Management Vs Network monitoring
• Why network performance management?
• What affects the network performance?
• The 3 aspects of network performance management and how to manage them?
• Where to start?
• Q & A session
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Network management Vs. monitoring
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• Monitoring helps you benchmark the performance. – If not managed properly, the outcome will be
constant
• You optimize the performance by managing
Images courtesy 123rf.com
Network Management: Planning, Designing, Provisioning, Operating, Administrating and Maintaining the network infrastructure
Network Monitoring: Measures availability and performance of network infrastructure & reacts to operational faults
Network management Vs. monitoring
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• Network monitoring is a subset of Network Management• Network performance:
– Monitoring helps you gauge – Management helps you progress
Why?
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• Virtualization of servers, desktops & storage– Managing VLANs and IP addresses– Bandwidth constraints– Managing devices meant for virtualization purpose
Question: "With respect to server virtualization, which of the following is your organization's biggest technical challenge?: (Jon Oltsik in NetworkWorld)
33%: Adds, moves, and changes in the network 27%: Provisioning/configuring VLANs 20%: Managing virtual switches13%: Managing increasing network traffic7%: Managing an increasing number of physical devicesRef: http://www.networkworld.com/community/blog/server-virtualization-complicates-network-man
Why?
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• VoIP/ Unified communications– Bandwidth constraints
• Proliferation of branch offices and datacenters – WAN connectivity and bandwidth management
• Increasing adoption of Cloud (Public/ Private) and Hosted apps– Performance hiccups are directly pointed to network
What affects the network performance?
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• Device/ Link availability
• Latency or delay
• Packet Loss and Retransmissions
• Errors and Discards
• Device starving for resources
• Bandwidth/ Traffic
• Configuration changes
Device
Link
Traffic
Components and Key aspects
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• Device– Availability– Overburdened device or Resource deficiency– Configuration change
• Link/ Interface– Availability – Packet Loss/ Retransmission– Errors/ Discards– Latency– Jitter, MOS for VoIP Infrastructure
• Traffic Utilization– Unwarranted use or Resource shortage
The 3 aspects
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Network Performance Management
Few good practices, tips and tricks
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• Device Resource constraints– Upgrade or share the load– Check the resource usage trend on a routine basis– Have standby mechanism in place, if it is a critical device– Replace legacy device when you have some budget– Use SNMP TRAP and Syslog processing tools
• Device Change & Configuration Management– Do not share root password with every team member– Backup configuration before initiating a change– Automate change detection and configuration backup (Most Preferred)
– Ensure the startup and running configurations are in sync always– Enforce change management workflow– Use templates to push configuration to multiple devices
Images courtesy Cisco.com
Few good practices, tips and tricks
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• Link/ Interface health hiccups – Measure path-wise Round-Trip-Time (RTT) and spot which Hop
induced maximum latency– Avoid interfaces with too many errors and discards– Use packet sniffing to analyze high Packet Loss and
Retransmission situation– Use redundant paths for high availability
Images courtesy Cisco.com
Few good practices, tips and tricks
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• High utilization of traffic– Implement QoS policies to avoid congestion and prioritize the
business traffic and bandwidth hungry apps– Regularize traffic usage by using Bandwidth throttling and capping
(If possible)
– Schedule bulk traffic operations during off peak hours such as site-to-site backup operations
– Blacklist certain websites or provide least precedence to non-business traffic
– If you are Cisco shop leverage monitoring and management technologies such as NetFlow traffic analysis, NBAR, IP SLA, CBQoS
– If your devices support sFlow, J-Flow or IP FIX start leveraging them to analyze the traffic usage
Images courtesy Cisco.com
Network Performance Management
Using
ManageEngine OpManager
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Network Performance Monitoring
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• Device/ Interface availability and health monitoring– Supports over 500 network infrastructure devices– Start monitoring them right away– Device/ Interface templates: Includes various parameters to gauge
device/ interface health & performance
Network Performance Monitoring
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• Device availability and health monitoring– A sample screenshot
Network Performance Monitoring
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• Link/ Interface availability & health monitoring– A sample screenshot
Network Performance Monitoring
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• Link Latency, Jitter and MOS monitoring– OpManager uses Cisco IP SLA– A sample screenshot from WAN RTT and VoIP monitoring
Bandwidth monitoring and Traffic Analysis
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OpManager NetFlow Plug-in:•Flow based traffic analysis – Provides you
– Traffic IN and OUT– Applications-wise traffic used– Source and Destination-wise bandwidth consumed– Top conversations IN and OUT– DSCP and ToS Values– Cisco Shops can leverage CBQoS and NBAR as well.
Network configuration management
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OpManager NCM plug-in:•Automates change and configuration management•Enforces change management workflow•Push configuration to multiple devices using templates•Ensure compliance at each configuration updates
Where to start?
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• For managing an active network – A good start is always to begin monitoring
Tons of features not talked about
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ManageEngine OpManager is comprehensive, easy-to-use network monitoring & management software.
For free trial visit -www.opmanager.com
For product demos - Mail us at [email protected]
Call at +1 888 720 9500
• Automatic network discovery• Layer 2/ Layer 3 Network Mapping• Custom Maps• Server Monitoring (Windows/ Linux/
UNIX flavor OSes)• ESX VMware Monitoring• MS Exchange, SQL and Active
Directory Monitoring• Service Monitoring, Process and
File/ Folder monitoring• Website monitoring• Processing SNMP TRAPs, Syslogs
& Event Log • Monitors any ping-able and SNMP
enabled device• Alerts through Email, SMS,
TitterDM, RSS Feeds• Smartphone GUI• Customizable Dashboards &
more…
About ManageEngineManageEngine is the only IT Management vendor focused on bringing a complete IT
Management portfolio to the mid-sized enterprise.
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Trusted by over 50,000 customers including 3 out of every 5 Fortune 500 companies. More at www.manageengine.com
Network Monitoring and Network Management – What makes the difference?
3 Network performance management aspects and how to manage them•Monitor: Availability and Performance monitoring of devices, links and traffic and Fault Management•Analyze: Fault Analysis, Traffic Analysis and Remediation optionsRemediate: Network Change and Configuration Management , HW and software upgrades•Network performance management with ManageEngine OpManager
Aspects which affects the Network Performance and components
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Summary
About ManageEngine and its various IT management products
Why Network Performance Management? – Server Virtualization, Cloud Infrastructure, VoIP and Unified Communication adoptions
