Verifying Enhanced Vpcs; Cisco Nexus 5000 Series Nx-Os Layer 2 Switching Configuration Guide, Release 5.1(3)N1(1 - Cisco nexus 5000 series Configuration Manual

Configuring Enhanced Virtual Port Channels
• In procedures where the configuration must be repeated on both switches, the configuration
Note
• You cannot configure non-vPC interfaces across host ports on two different FEXs.
Step 1 Enable the vPC and LACP features on each switch.
Step 2
Create required VLANs on each switch.
Step 3 Assign a vPC domain ID and configure the vPC peer-keepalive link on each switch.
Step 4 Configure the vPC peer link on each switch.
Step 5 Configure port channels from the first FEX to each switch.
Step 6
Configure port channels from the second FEX to each switch.
Step 7 If the enhanced vPC must accommodate FCoE traffic, associate the first FEX to one switch, and then associate the second
FEX to the other switch.
See "Configuring FCoE over Enhanced vPC" in the Fibre Channel over Ethernet Configuration Guide for your device.
Step 8
Configure a host port channel on each FEX.

Verifying Enhanced vPCs

Verifying the Enhanced vPC Configuration
Before bringing up a vPC, the two peer switches in the same vPC domain exchange configuration information
to verify that both switches have compatible configurations for a vPC topology. Depending on the severity
of the impact of possible mismatched configurations, some configuration parameters are considered as Type
1 consistency check parameters while others are considered as Type 2.
When a mismatch in Type 1 parameters is found, both peer switches suspend VLANs on the vPC ports. When
a mismatch in Type 2 parameters is found, a warning syslog message is generated, but the vPC remains up
and running.
Enhanced vPCs do not support the graceful consistency check.
Note
For enhanced vPCs, the consistency verification for global configuration parameters is the same as for a dual
homed FEX topology, and is described in the documentation for dual homed FEX. In addition to the global
consistency verification, enhanced vPCs require interface level verification using tasks described in this
section.
Use the following commands to verify the enhanced vPC configuration and consistency:
OL-25842-01
synchronization (config-sync) feature allows you to configure one switch and have the configuration
automatically synchronized to the peer switch. For more information about configuration
synchronization, see the Operations Guide for your device.

Cisco Nexus 5000 Series NX-OS Layer 2 Switching Configuration Guide, Release 5.1(3)N1(1)

Verifying Enhanced vPCs
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