VPC error after upgrading Nexus 9K

[NetworkMonkey101]

Hi all,

I have upgrade a pair of Nexus switches from nxos.7.0.3.I4.5.bin to nxos.9.3.11.bin and I am seeing an error in the logs. 

Routing adjacency over vPC detected without required configuration.Please configure layer3 peer-router under th
e vPC domain.

I have compared the configuration in notepad++ and nothing seems to be missing. 

There are a few vpc's showing as down, I did not check if there were previously up.

vPC status
----------------------------------------------------------------------------
Id Port Status Consistency Reason Active vlans
-- ------------ ------ ----------- ------ ---------------
11 Po11 down* success success -

12 Po12 down* success success -

13 Po13 down* success success -

14 Po14 down* success success -

15 Po15 up success success 1,91,95,104,200,
335
16 Po16 up success success 1,91,95,104,200,
335
17 Po17 up success success 1,27-29

18 Po18 up success success 1,27-29

20 Po20 down* success success -

Is there something that needs applying after the upgraded?

[MHM Cisco World]

Routing adjacency over vPC detected without required configuration.Please configure layer3 peer-router under th
e vPC domain.
from this log Message you need both Layer3 peer-router and peer-getaway to make N9K use peer-link for routing protocol 

[NetworkMonkey101]

Hi,

What commands would be needed for this?

[MHM Cisco World]

Two comamnd 

Layer3 peer-router 

Peer-gateway 

These command add under vpc domain 

[NetworkMonkey101]

Would not having this configured on both vpc domains prevent BGP from establishing?
Do not believe this command was there before upgrade.

[MHM Cisco World]

[NetworkMonkey101]

This is the current VPC configuration

vpc domain 101
role priority 32667
system-priority 32667
peer-keepalive destination 169.254.0.2 source 169.254.0.1 udp-port 3200 vrf management interval 1000 timeout 5 precedence 6 hold-timeout 3
delay restore 60
no delay peer-link
no dual-active exclude interface-vlan
peer-gateway
no layer3 peer-router
layer3 peer-router syslog interval 3600
graceful consistency-check
auto-recovery reload-delay 240
delay restore interface-vlan 10
delay restore orphan-port 0
no fast-convergence
port-channel limit
no shutdown
ip arp synchronize

interface port-channel1
vpc peer-link

interface port-channel5
vpc 5

interface port-channel6
vpc 6

interface port-channel7
vpc 7

interface port-channel10
vpc 10

interface port-channel11
vpc 11

interface port-channel12
vpc 12

interface port-channel13
vpc 13

interface port-channel14
vpc 14

interface port-channel15
vpc 15

interface port-channel16
vpc 16

interface port-channel17
vpc 17

interface port-channel18
vpc 18

interface port-channel19
vpc 19

interface port-channel20
vpc 20

interface port-channel51
vpc 51

interface port-channel52
vpc 52

interface port-channel53
vpc 53

interface port-channel54
vpc 54

interface port-channel55
vpc 55

[MHM Cisco World]

no layer3 peer-router

Ther is no so this command is disable