This document provides a solution for vPC consistency that occurs between 2 vPC peer devices.
Getting N7K SVI type-2 configuration incompatible message in Nexus 7K
Example: N7K1# show vpc
Legend: (*) - local vPC is down, forwarding via vPC peer-linkvPC domain id : 1 Peer status : peer adjacency formed ok vPC keep-alive status : peer is alive Configuration consistency status : success
Type-2 consistency status : failed Type-2 consistency reason:SVI type-2 configuration incompatible vPC role :primary Number of vPCs configured : 27 Peer Gateway : Disabled
Some configuration mismatches between vpc peers can cause unexpected or wrong forwarding.Therefore some checks are performed on the configuration of the vpc peers to see if those parameters are matching, these parameters can be global or on a vpc. The configuration parameters that need to match on both vpc peers are classified as type-1 and type-2.Type-1 mismatches being more severe,trigger some actions from the devices, such as suspending a vpc, not allowing the cluster to form. With type-2 configuration error, an error will be syslogged, but no action will be taken by the nexus.For complete list of parameters that must or should be identical between the vPC peers referCompatibility Parameters for vPC Interfaces
Note that Note that Interface vlans must be in the same state (admin up or down) on both vPC peers.
To display the consistency of parameters that must be compatible across the virtual port-channel (vPC) interfaces, use the show vpc consistency-parameters command.
switch# show vpc consistency-parameters interface po 15
Type 1 : vPC will be suspended in case of mismatch
Name Type Local Value Peer Value
------------- ---- ---------------------- -----------------------
STP Mode 1 Rapid-PVST Rapid-PVST
STP Disabled 1 None None
STP MST Region Name 1 "" ""
STP MST Region Revision 1 0 0
STP MST Region Instance to 1
STP Loopguard 1 Disabled Disabled
STP Bridge Assurance 1 Enabled Enabled
STP Port Type 1 Normal Normal
STP MST Simulate PVST 1 Enabled Enabled
Allowed VLANs - 1-10,15-20,35,45,99 1-10,15-20,35,45,99
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