02-09-2023 06:51 AM
Hi all,
I am facing an issue with a portchannel I am trying to set up for a windows server 2022. The servers team has requested to provide two ports. They are not using LACP on the server, but SET (Switch Embedded Teaming). I proceeded to create a portchannel as usual:
interface Port-channel1
switchport
switchport mode trunk
The same config was applied to the physical interfaces, along with the command "channel-group 1 mode active", but the interfaces get suspended and I see the below log in the switch:
%EC-5-L3DONTBNDL2: Gi9/27 suspended: LACP currently not enabled on the remote port.
I also tried the command with mode on, desirable and passive, but every time the interface gets suspended.
Has anyone stumbled upon a same issue? Is there a suggested configuration for the cisco switch when SET is used on the remote server? The switch model is Cisco 4510E.
Thank you!
Solved! Go to Solution.
02-09-2023 07:34 AM
- Try to leave them as standalone (access/host-mode) at the cisco side , just two network links to a host, let Windows handle the teaming (using SET) , check what happens ,
M.
02-09-2023 08:12 AM
Hi,
So, you mean to just create two trunk ports and no portchannel?
Yes, as Marce said it correctly, there is no need for a Portchannel. Just use 2 physical links and let the server do the load balancing and failover.
HTH
02-09-2023 07:34 AM
- Try to leave them as standalone (access/host-mode) at the cisco side , just two network links to a host, let Windows handle the teaming (using SET) , check what happens ,
M.
02-09-2023 08:01 AM
Hi marce1000, thank you for your reply.
So, you mean to just create two trunk ports and no portchannel?
02-09-2023 08:12 AM
Hi,
So, you mean to just create two trunk ports and no portchannel?
Yes, as Marce said it correctly, there is no need for a Portchannel. Just use 2 physical links and let the server do the load balancing and failover.
HTH
02-09-2023 08:30 AM
- You only need trunk links if the windows server would deal with different vlans (tagging) , otherwise don't use a trunk link (port in host-mode) ,
M.
02-09-2023 08:54 AM
Just reading up a bit on SET. It appears all it needs is typical server host links, w/o Etherchanneling. In fact, it appears it would even be happy with links to different (including logical) switches.
02-10-2023 01:03 AM
Great, indeed I tried it and it works this way. One last question though, without etherchanneling, does the bandwidth aggregate on the switch side (2Gbps towards the server)?
02-10-2023 01:46 AM
>...does the bandwidth aggregate on the switch side (2Gbps towards the server)
- Use network monitoring tools , to monitor traffic on the involved ports on the switch , lots of free tools available or Windows Task Manager -> Performance (Networking) may provide some insights too
M.
02-10-2023 03:01 AM
Or, even, compare each port's stats (on the switch itself).
Are packet counts, more or less, balanced in both directions?
I recall (many) years ago, server teaming was only server egress. In my recent look at SET, didn't see mention of this.
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