Tb2385 groenveld expert_one irf_final

Objectives Describe the benefits of using HP IRF Describe the roles of IRF members, the IRF ports, member IDs, and IRF topologies Explain how the IRF master is elected Describe what a split IRF stack is and the mechanisms to detect and remedy problems Implement an IRF system5 © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

Discussion TopicsIRF Overview Single Virtual Device IRF Architecture — Master and Subordinates IRF Architecture — Operational Planes Traffic Forwarding Advantages of Using IRFImplementing IRFSplit Stack6 © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

Master and Subordinates• Master — manages the IRF system• Subordinates — process services and function as backups8 © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

Understanding Operational Planes • Management • Control • Forwarding Chassis-based switch architecture9 © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

Active, Proxy Management and Control Planes Master’s management and control planes are active Other members are like interface modules • Proxy management and control planes • Active forwarding plane10 © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

Forwarding and Routing within the IRF System Members learn MAC addresses, and the master distributes. MAC address Port 0018000002 0018000001 3/0/4 0018000002 1/0/20 Member 0018000003 2/0/12 ID: 1 0018000004 2/0/20 Member ID: 3 Member ID: 2 0018000001 0018000004 001800000311 © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

Advantages of IRF Consider: • Management • Network design • Network operations • Reliability • Scalability12 © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

High Reliability• Link and device redundancy• Rapid failover Scenario Failover time Link aggregation: port removal/insertion 2 ms/0.7ms Link aggregation: board 2 ms/1 ms removal/insertion Chassis off/on 2 ms/0.14 ms Software upgrade 2 ms15 © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

Streamlined Management and Scalability• Manage the IRF system as a single device• Increase bandwidth & processing capability by adding member devices Switch Switches supported in 1 system Maximum #of IRF ports 5120 4 4 10 GbE ports 5500 9 4 10 GbE ports 5800 9 8 10 GbE ports 5820 9 8 10 GbE ports 5830 4 8 10 GbE ports 7500 2 (4 planned in future) 8 10 GbE ports 9500 2 (4 planned in future) 12 10 GbE ports 10500 2 (4 planned in future) 8 10 GbE ports 12500 2 (4 planned in future) 12 10 GbE ports16 © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

Discussion TopicsIRF OverviewImplementing IRF IRF Requirements IRF Topologies Member IDs IRF Priority Electing a Master IRF Ports IRF Domain Configuration Process: Two Options ISSU Graceful RestartSplit Stack17 © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

IRF Requirements• All members in an IRF system must be the same switch model• Members must be connected by10 GbE ports• Switches must be running compatible software18 © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

Member IDsUnique member ID are used for member identification & management20 © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

Electing a MasterWhen implementing a new IRF system, the member with the highest priority is electedOn the switch you want to be master, configure a high IRF priority numberIf all members have the same priority:Member with the longest system up-time is electedMember with the lowest bridge address is electedFor an existing IRF system:The current master is electedThe other rules apply if the master is not available21 © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

Logical IRF Ports• You bind one or more physical ports to a logical IRF port• You must connect IRF port 1 on one switch to IRF port 2 on another switch22 © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

IRF Domain Configure an IRF domain number to distinguish between multiple IRF systems on the same network23 © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

Establishing and Maintaining the IRF System• Topology discovery• Role election• Maintenance27 © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

Synchronizing Configuration FilesInitial synchronizationWhen the IRF system is established, subordinates synchronize theirconfiguration with the master’sReal-time synchronizationAll configuration changes are synchronized to the subordinates’configuration files28 © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

ISSU — Upgrade Software without Service Interruption• The master’s standby MPU or an IRF member is upgraded• Standby MPU becomes active, or the IRF member becomes master• The formerly active MPU or former IRF member is upgraded; other IRF members are upgraded• Optionally, the original MPU or master resumes role29 © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

Configuring OSPF Graceful Restart1. Enable OSPF restart on the switch and select the method (IETF standard or non-standard)2. Enable the capabilities required by the method: IETF standard = Opaque LSAs Non-standard = LLS and OOB3. Enable the capabilities on the switch’s neighbors (which then act as helper for any switch)31 © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

Discussion TopicsIRF OverviewImplementing IRFDetecting and Resolving Split Stack IRF Split Stack Multi-active Detection (MAD) Detecting IRF Split Stack with LACP Detecting IRF Split Stack with BFD Preventing Collisions and Recovering the IRF System32 © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

IRF Split Stack • A failure physically disconnects members in the virtual system • Two IRF systems are formed, each using the same IP addresses and configuration settings33 © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

Multi-active Detection (MAD)• Detects multiple active IRF systems with the same global configuration• Prevents address conflicts by allowing one active IRF system to function and placing the other in recovery state (disabling it)• Initiates failure recovery34 © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

Detecting IRF Split Stacks with LACP MAD switch that supports extended LACPDUs35 © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

Prevent Address Conflicts and Recover the IRF SystemPrevent address conflicts• MAD initiates an election between the two IRF systems• MAD places the IRF system that loses the election in recovery mode• MAD tries to repair linkRecover the IRF system• After the link is repaired, the IRF system in recovery mode reboots• The reconnected members establish the IRF system37 © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

Lab Activity 7• Configure the two 5800 switches to form an IRF system• Configure MAD 1/1 2/238 © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

Lab Activity 7 Debrief• What challenges did you experience?• How did you deal with them?• What key insights did you make?• What troubleshooting tips did you discover?39 © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

SummaryIRF creates a single virtual switch• Streamlined management• Simplified network design and operations• Extremely reliable and resilientIRF operation and configurationProtection against split stack40 © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

Tools to Help Our Clients• Read about the FlexNetwork Architecture• Learn about Virtual Application Networks• Discover Intelligent Management Center• View the HPN Portfolio Matrix Guide• Learn about networking services from HP Technical Services• Learn about networking career certifications from HP ExpertONE42 © Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

Tb2385 groenveld expert_one irf_final

by HP Enterprise on Jun 06, 2012

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Tb2385 groenveld expert_one irf_final Presentation Transcript