N5k and N7k

[ARMANDO ALVARADO]

Not to familiar with the N5k. So here is my issue, I trying to connect n5k via two 10 gig ports to N7k 10 gig ports on a portchannel with truncking as well.

this is only for traffic to pass thru just a uplink. I have two different port channels on both sides. I do not have any ip's attach to the interfaces since I'm doing any routing thru there. But I cannot bring up any of the portchannels or interfaces to become members of the portchannels. This is only a test enviroment. I have included a text config of how it is setup. If anyone see's something wrong or can correct let me know. Any help would be greatful.

[andrew.prince]

You have a native vlan mis-match - check your 5k config.

[ARMANDO ALVARADO]

Thanks for the reply

Sorry I sent the wrong config please disregard the one above. This is the one that is active now.

N7k Configuration:

interface port-channel102

  description Uplink-N5K-TestSwitch

  switchport

  switchport mode trunk

  switchport trunk native vlan 999

  switchport trunk allowed vlan 102

  spanning-tree port type network

interface Ethernet4/15

  description Uplink-N5k-TestSwitch

  switchport

  switchport mode trunk

  switchport trunk native vlan 999

  switchport trunk allowed vlan 102

  channel-group 102 mode active

interface Ethernet4/16

  description Uplink-N5k-TestSwitch

  switchport

  switchport mode trunk

  switchport trunk allowed vlan 999

  channel-group 102 mode active

N5K Configuration:

interface port-channel103

  description Uplink-N7k

  switchport mode trunk

  switchport trunk native vlan 999

  switchport trunk allowed vlan 100

  spanning-tree port type network

interface Ethernet1/3

  description Uplink-N7k

  switchport mode trunk

  switchport trunk native vlan 999

  switchport trunk allowed vlan 100

  spanning-tree port type network

  channel-group 103 mode active  

interface Ethernet1/4

  description Uplink-N7k

  switchport mode trunk

  switchport trunk native vlan 999

  switchport trunk allowed vlan 100

  spanning-tree port type network

  channel-group 103 mode active

[andrew.prince]

post the output of "show port-channel sum"

[ARMANDO ALVARADO]

Here you go sir. And the portchannel are no shutdown on either side or the interfaces as well. Thanks

N7k

102   Po102(SD)   Eth      LACP      Eth4/15(D)   Eth4/16(D)

N5k

103   Po103(SD)   Eth      LACP      Eth1/3(D)    Eth1/4(D)

[andrew.prince · Accepted solution]

OK - I think 2 things:-

1) I would change the portchannel numbers to be the same on both sides (I saw this issue with a pair of 6500's once) so remove all the config and start again using the same port-channel numbers on both sides.

If that does not work - back to basics.

2) Just have 1 cable between the 7k and 5k and just make that a trunk.  If you get the trunk up - then turn it into a port-channel.

Also - have you enabled the LACP feature????

HTH>

[ARMANDO ALVARADO]

Yes the LACP feature is on. I will try this out and get back to you. Thanks for the ideas.

[ARMANDO ALVARADO]

Thanks for you help found the solution. It was a fiber issue. Everything is up and running.