Just to quick update to highlight if anyone is having problems issueing DHCP across your newly created port channel setup via XMS-C CLI Snippet, even if you enable “Port Security Trusted” in the port via the XMS-C GUI, you must have it in the cli snippet in XMS-C to take affect as anything set in the XMS-C GUI is overwritten by the cli snippet.
As DHCP Snooping is enabled by default, you need to specifically set “ip dhcp snooping trust” on the “interface port-channel 1” you’ve created so that DHCP requests can be resolved accordingly across your switches.
Our XMS-C CLI Snippet is now the following:
!
interface port-channel 1
switchport mode trunk
mtu 1500
no shutdown
ip dhcp snooping trust
!
interface extreme-ethernet 0/3
channel-group 1 mode on
!
interface extreme-ethernet 0/4
channel-group 1 mode on
!
Any further changes to the Port Channel must therefore be held within this XMS-C CLI Snippet.
Took a while to realise this as the XMS-C GUI doesn’t reflect what’s set in the CLI Snippet so it got missed initially until you realise in the local switch GUI it isn’t on. We could have statically assigned IP’s which all worked over the link, just not automatic DHCP.
I hope this helps others remedy their config too.