I have attached a diagram of what I am trying to achieve.
I basically have a WAN connection on ether1 of the 450G. This WAN connection is carrying multiple VLAN's (80,81). VL80 is a /30 that connects the upstream router to my 450G. VL81 is an additional VLAN that I need to pass out of ether1 of the 450G to ether3 - it is carrying a PTP link that connects the router upstream to the 450G to a router that is beyond the 450G (on ether3).
So, I need to be able to accept VL81 on ether1, and continue to pass it on ether3. On a Cisco switch, I would simply configure this VLAN on multiple physical trunk ports, but I cannot figure how to properly do this on the 450G. This whole design could possibly be incorrect - instead of passing VL81 through the 450G, maybe I should terminate it on the 450G, and then create another VLAN and /30 to link the 450G to the router upstream?
Could someone please offer some assistance?