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Ether channel Issues

mohamed sebaey
Beginner
Beginner

Dear All

I have a big issue on Ether Channel between 6k to 5k . I found that some of ports "w"  , i am unable to get the reason. My design is Cisco core switch VSS with two Cisco nexus 5k with vpc configuration . I have configure L2 port channel 108 between all "Cisco VSS , Cisco n5k VPC" .

 

VSS Core switch

VSS core switch 1

 

interface Port-channel109
 switchport
 switchport trunk allowed vlan 1-220
 switchport mode trunk

interface TenGigabitEthernet1/2/1
 switchport
 switchport trunk allowed vlan 1-220
 switchport mode trunk
 channel-group 109 mode active
!
interface TenGigabitEthernet1/2/2
 switchport
 switchport trunk allowed vlan 1-220
 switchport mode trunk
 channel-group 109 mode active
!
interface TenGigabitEthernet1/2/3
 switchport
 switchport trunk allowed vlan 1-220
 switchport mode trunk
 channel-group 109 mode active
!
interface TenGigabitEthernet1/2/4
 switchport
 switchport trunk allowed vlan 1-220
 switchport mode trunk
 channel-group 109 mode active

 

VSS core switch 2
interface TenGigabitEthernet2/2/1
 switchport
 switchport trunk allowed vlan 1-220
 switchport mode trunk
 channel-group 109 mode active
!
interface TenGigabitEthernet2/2/2
 switchport
 switchport trunk allowed vlan 1-220
 switchport mode trunk
 channel-group 109 mode active
!
interface TenGigabitEthernet2/2/3
 switchport
 switchport trunk allowed vlan 1-220
 switchport mode trunk
 channel-group 109 mode active
!
interface TenGigabitEthernet2/2/4
 switchport
 switchport trunk allowed vlan 1-220
 switchport mode trunk
 channel-group 109 mode active


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

VPC on Nexus 1


interface port-channel109
  switchport mode trunk
  switchport trunk allowed vlan 1-220


interface Ethernet1/18
  switchport mode trunk
  switchport trunk allowed vlan 1-220
  channel-group 109 mode active

interface Ethernet1/19
  switchport mode trunk
  switchport trunk allowed vlan 1-220
  channel-group 109 mode active


interface Ethernet1/26
  switchport mode trunk
  switchport trunk allowed vlan 1-220
  channel-group 109 mode active

interface Ethernet1/27
  switchport mode trunk
  switchport trunk allowed vlan 1-220
  channel-group 109 mode active

 

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

 

VPC on Nexus 2


interface port-channel109
  switchport mode trunk
  switchport trunk allowed vlan 1-220


interface Ethernet1/18
  switchport mode trunk
  switchport trunk allowed vlan 1-220
  channel-group 109 mode active

interface Ethernet1/19
  switchport mode trunk
  switchport trunk allowed vlan 1-220
  channel-group 109 mode active


interface Ethernet1/26
  switchport mode trunk
  switchport trunk allowed vlan 1-220
  channel-group 109 mode active

interface Ethernet1/27
  switchport mode trunk
  switchport trunk allowed vlan 1-220
  channel-group 109 mode active

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

 

Q1- I have issue on port channel not all ports are in p in bundle  mode  , only ports which connected to main core 1 on p  bundle mode , but other ports which connected to second switch "w" waiting to be aggregated ?. Is it ok to put all etherchannel on same port channel 109?.

 

Q 2- I am going to integrate with 2 X ASR , i have to configure 2 port channels from 2 X ASR  to VSS or 1 etherchannel ?

 

 

thanks

 

 

 

4 REPLIES 4

Leo Laohoo
VIP Community Legend VIP Community Legend
VIP Community Legend

Depending on the line card of the 6500, you could be missing the command "switchport trunk encap dot1q".

Hello

 

Thanks Leo for your answer , but no it isn't recognized command under port configuration. Can u help me for the below question please:-

 

Q1- Is it ok to put all Cisco VSS ( two core switch 6K and 2 VPC " 2 nexus switches) on same port channel 109?.

 

Q 2- I am going to integrate with 2 X ASR  , i have to configure 2 port channels from 2 X ASR  to VSS or 1 etherchannel ?

 

thanks

hi

Please advise .

 

thanks

 

Q1

Your config lacks the vpc ID. Add

vpc 109 

On both Nexus switches under the port channel 109 interface. 

 

Q2

You need 2 port channel, each going from ASR to both VSS switches. 

 

Regards 

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