09-16-2015 07:05 AM - edited 03-08-2019 01:48 AM
Setup:
2x Nexus 5672UP
NX-OS version 7.0
vPC seems to be operational (via 2x 40gb link).
However the VRRP links I have created show as master on both sides (with the accompanying error message in the logs).
I must be forgetting something.
interface Vlan19
description Switches
no shutdown
vrf member standaard
ip address 10.0.19.253/24
ip dhcp relay address 10.0.10.7
vrrp 19
priority 120
authentication text password
address 10.0.19.254
no shutdown
interface Vlan19
description Switches
no shutdown
vrf member standaard
ip address 10.0.19.252/24
ip dhcp relay address 10.0.10.7
vrrp 19
authentication text password
address 10.0.19.254
no shutdown
Switch-01# sh vrrp
Interface VR IpVersion Pri Time Pre State VR IP addr
---------------------------------------------------------------
Vlan10 10 IPV4 100 1 s Y Master 10.0.10.254
Vlan19 19 IPV4 100 1 s Y Master 10.0.19.254
Vlan21 21 IPV4 100 1 s Y Master 10.0.21.254
Vlan40 40 IPV4 100 1 s Y Master 10.0.99.254
Vlan55 55 IPV4 100 1 s Y Master 10.0.55.254
Vlan56 56 IPV4 100 1 s Y Master 10.0.56.254
Vlan57 57 IPV4 100 1 s Y Master 10.0.57.254
2015 Sep 16 15:56:24 NH1816-NO2 %ARP-3-DUP_VADDR_SRC_IP: arp [3760] Source address of packet received from 0000.5e00.0
137 on Vlan55(port-channel1000) is duplicate of local virtual ip, 10.0.55.254
2015 Sep 16 15:56:34 NH1816-NO2 %ARP-3-DUP_VADDR_SRC_IP: arp [3760] Source address of packet received from 0000.5e00.0
10a on Vlan10(port-channel1000) is duplicate of local virtual ip, 10.0.10.254
2015 Sep 16 15:56:44 NH1816-NO2 %ARP-3-DUP_VADDR_SRC_IP: arp [3760] Source address of packet received from 0000.5e00.0
128 on Vlan40(port-channel1000) is duplicate of local virtual ip, 10.0.99.254
2015 Sep 16 15:56:54 NH1816-NO2 %ARP-3-DUP_VADDR_SRC_IP: arp [3760] Source address of packet received from 0000.5e00.0
113 on Vlan19(port-channel1000) is duplicate of local virtual ip, 10.0.19.254
2015 Sep 16 15:57:05 NH1816-NO2 %ARP-3-DUP_VADDR_SRC_IP: arp [3760] Source address of packet received from 0000.5e00.0
138 on Vlan56(port-channel1000) is duplicate of local virtual ip, 10.0.56.254
2015 Sep 16 15:57:16 NH1816-NO2 %ARP-3-DUP_VADDR_SRC_IP: arp [3760] Source address of packet received from 0000.5e00.0
10a on Vlan10(port-channel1000) is duplicate of local virtual ip, 10.0.10.254
2015 Sep 16 15:57:26 NH1816-NO2 %ARP-3-DUP_VADDR_SRC_IP: arp [3760] Source address of packet received from 0000.5e00.0
113 on Vlan19(port-channel1000) is duplicate of local virtual ip, 10.0.19.254
Switch-01# sh vpc
Legend:
(*) - local vPC is down, forwarding via vPC peer-link
vPC domain id : 100
Peer status : peer adjacency formed ok
vPC keep-alive status : peer is alive
Configuration consistency status : success
Per-vlan consistency status : success
Type-2 consistency status : success
vPC role : primary
Number of vPCs configured : 0
Peer Gateway : Disabled
Dual-active excluded VLANs : -
Graceful Consistency Check : Enabled
Auto-recovery status : Enabled (timeout = 240 seconds)
vPC Peer-link status
---------------------------------------------------------------------
id Port Status Active vlans
-- ---- ------ --------------------------------------------------
1 Po1000 up 1,10-11,19-21,40-41,55-57
09-16-2015 05:12 PM
Hi,
What port is your VPC peer link?
Have you allowed all vlans on that link?
HTH
09-17-2015 03:12 AM
I have connected ports E2/5 and E2/6 in channel group 1000 with vPC domain 100.
There are no restrictions placed on vlans in the vPV config, nor are there any access-lists active.
I've also tried hsrp instead of vrrp, which had the same problem.
So I'm fairly sure it's got something to do with the vPC config
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