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Cisco Nexus 5000 Series NX-OS Interfaces Operations Guide, Release 5.0(3)N2(1)
Chapter 1 Virtual Port Channel Operations
Replacing a Cisco Nexus 5000 Series Switch or Cisco Nexus 2000 Fabric Extender
Step 24 If vPC auto recovery was disabled, enable auto recovery using the auto-recovery command under vPC
domain on both switches.
Replacing a Cisco Nexus 2000 Series Fabric Extender
This section describes how to replace a Cisco Nexus 2000 Series Fabric Extender with minimal
disruption. This section includes the following topics:
• Replacing a Fabric Extender in a Dual-Homed Fabric Extender vPC Topology, page 1-13
• Replacing a Fabric Extender in a Single-Homed Fabric Extender vPC Topology, page 1-13
• Installing a New Cisco Nexus 2000 Series Fabric Extender, page 1-14
Replacing a Fabric Extender in a Dual-Homed Fabric Extender vPC Topology
Because the hosts behind a Fabric Extender in a dual-homed Fabric Extender vPC topology are by
definition singly-connected, traffic disruption will occur for those hosts.
If the replacement Fabric Extender is a different model, the Cisco Nexus 5000 Series switch does not
allow you to pre-provision a new type until you disconnect the old Fabric Extender.
To retain the configuration on both Cisco Nexus 5000 Series peer switches in the vPC topology, follow
these steps.
Step 1 Save the configuration for the Fabric Extender interfaces to a file.
Step 2 Disconnect the Fabric Extender fabric ports and wait until the Fabric Extender is offline.
Step 3 Pre-provision the slot with the new Fabric Extender model.
Step 4 Modify the configuration file if necessary for the new Fabric Extender if the configurations are
incompatible.
Note For vPC ports, this step might affect consistency.
Step 5 Copy the file to the running configuration.
Step 6 Connect the Fabric Extender fabric and host ports and then wait for the Fabric Extender to come online.
Step 7 Verify that all ports are up with the correct configuration.
Replacing a Fabric Extender in a Single-Homed Fabric Extender vPC Topology
If the replacement Fabric Extender is the same model as the original Fabric Extender, then there is no
disruption; the configuration on the Fabric Extender interfaces remain unchanged.
If the replacement Fabric Extender is a different model, the Cisco Nexus 5000 Series switch does not
allow you to pre-provision a new type until you disconnect the old Fabric Extender.
To replace a Fabric Extender in a single homed Fabric Extender vPC topology, follow the procedure
described in “Replacing a Fabric Extender in a Dual-Homed Fabric Extender vPC Topology” section on
page 1-13.
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