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VPC NEXUS 5k 2K

karimbruxelles
Level 1
Level 1

Hi,

I have got two pairs of NEXUS switches 5k and 2k

The two 5 k are connected through 4 connections (port-channel) but it doesn't seems to work??

The idea is to setup a server with a double path connected to n2k ->  5k and create a VPC between the two differents switches on access mode

N11-BKP# show port-channel summary

--------------------------------------------------------------------------------

1     Po1(SU)     Eth      LACP      Eth1/1(P)    Eth1/2(P)    Eth1/3(P)

                                     Eth1/4(P)

2     Po2(SD)     Eth      LACP      Eth1/5(s)    Eth1/6(D)

N11-BKP# show running-config interface port-channel 1

interface port-channel1

  description Inter-Link N11-N12

  switchport mode trunk

  switchport trunk allowed vlan 1-776,778-3967,4048-4093

  vpc peer-link

  spanning-tree port type network

N11-BKP# show vpc 1

vPC status

----------------------------------------------------------------------------

id     Port        Status Consistency Reason                     Active vlans

------ ----------- ------ ----------- -------------------------- -----------

N11-BKP#

N11-BKP# show vpc brief

Legend:

                (*) - local vPC is down, forwarding via vPC peer-link

vPC domain id                   : 1

Peer status                     : peer link is down

                                  (vPC peer is not reachable over

                                  cfs)

vPC keep-alive status           : peer is alive

Configuration consistency status: failed

Per-vlan consistency status     : success

Configuration consistency reason: Consistency Check Not Performed

Type-2 consistency reason       : Consistency Check Not Performed

vPC role                        : none established

Number of vPCs configured       : 2

Peer Gateway                    : Enabled

Dual-active excluded VLANs      : -

Graceful Consistency Check      : Disabled (due to peer configuration)

vPC Peer-link status

---------------------------------------------------------------------

id   Port   Status Active vlans

--   ----   ------ --------------------------------------------------

1    Po1    up     -

vPC status

----------------------------------------------------------------------------

id     Port        Status Consistency Reason                     Active vlans

------ ----------- ------ ----------- -------------------------- -----------

2      Po2         down   failed      Consistency Check Not      -

                                      Performed

15     Po15        down   failed      Consistency Check Not      -

                                      Performed

N11-BKP# show vpc 2

vPC status

----------------------------------------------------------------------------

id     Port        Status Consistency Reason                     Active vlans

------ ----------- ------ ----------- -------------------------- -----------

2      Po2         down   failed      Consistency Check Not      -

                                      Performed

N11-BKP# show vpc consistency-parameters vpc 1

N11-BKP# show vpc consistency-parameters vpc 2

    Legend:

        Type 1 : vPC will be suspended in case of mismatch

Name                        Type  Local Value            Peer Value

-------------               ----  ---------------------- -----------------------

Shut Lan                    1     No                     -

STP Port Type               1     Default                -

STP Port Guard              1     None                   -

STP MST Simulate PVST       1     Default                -

Allowed VLANs               -     1-776,778-3967,4048-40 -

                                  93

Local suspended VLANs       -     -                      -

N11-BKP#

I don't have a clue of what is happening

Thanks

2 Replies 2

Reza Sharifi
Hall of Fame
Hall of Fame

Hi,

You do not have domain id in your config:

example:

switch(config)# vpc domain 5

have a look at this doc for more info:

http://www.cisco.com/en/US/prod/collateral/switches/ps9441/ps9670/configuration_guide_c07-543563.html

HTH

Hi,

No I do have a domain 1 (on all of my switches) but I found the answer actually on the links between the two nexus

the vpc peer-link was missing

vpc domain 1

  role priority 1

  peer-keepalive destination 192.168.254.208

  peer-gateway