LAG vlans and core port vlans

[Asifi]

Hello Everyone,

Quick question  - I have come across a couple of LAGs on my 8400c switch.  I can see the vlans associated with the lags.

However, on the uplink port to the core switch, the vlans are not the same as the LAG vlans.

Can anyone help me understand why this would be as I would expect the all LAG vlans to be available via the uplink core port?

Thanks,

[Asifi]

Hello WillyHE,

Thanks for the reply and apologies.  My initial question with ALL the config got rejected because someone thought it was spam!  We have SPBM in place so that's ok as you said it make's your life easier.

Let's see if this is blocked as spam or not.

So I have 2 port channels.

Port channel 1 vlans are 10, 20, 30, 40, 50 ,101

Port channel 2 vlans are 10, 20, 30, 40, 50, 102

The above port channels are on HP switches.  2 HP switches on each side in a stack.

On the Extreme core switch side, I can see the uplink from the HP switches to 2x Extreme core ports that are in LACP.

When I look at the details for each port on the core switch, I would expect to find the same vlans as on the HP port channel.

Instead, I only see a couple of vlans, 1 and 101 and 1.102 on each core switch respectively.

My question is should the HP port channel vlans and the Extreme core switch vlans be identical?

My initial feeling is yes they should be or else where would the traffic for vlans not present go?

I hope this explains this a bit better.

Thanks,