Hi all, I have a new Netvanta 1560 running 4.4-43, and I'm trying to see if it would be useful to me as a small branch office WAN L3 switch. The Metro-E carrier requires that all traffic handed off to the WAN be marked with CoS 3 or 5. Our standard is all normal traffic is marked as "3", and all VoIP traffic is marked as "5". Any traffic not marked with CoS or marked with anything but 3 or 5 goes into the scavenger traffic tier. Below is an equivalent Cisco config. Can I do something similar with the Adtran? I have a ticket open with Adtran, but I don't have a service plan, so I'm not sure what response I'll get. I'll post any updates to this topic that I get from Adtran.
class-map match-any PREMIUM match dscp cs5 match dscp ef match dscp cs6 match dscp cs7
policy-map CARRIER class PREMIUM set cos 5 class class-default set cos 3
interface GigabitEthernet1/0/1 description \\ Link to METRO-E WAN // switchport trunk allowed vlan 681 switchport mode trunk service-policy output CARRIER
interface Vlan681 bandwidth 100000 ip address x.x.x.x ip ospf 1 area 0
I'll also add that on some older Cisco switches that I use as WAN branch office switches, the above doesn't work, and I have to do a custom DSCP-to-CoS map, but that's not my preferred solution, since it's not as fine-grained as the approach above. I mention this, because it looks to me as I dig through the CLI that the Adtran offers a similar way to perform a custom DSCP-to-CoS mapping.
Update: Adtran support recommends that I re-mark CoS based on DSCP on the ingress port as needed, since it cannot re-mark on the egress port. Sample config for a port with a VoIP phone and a PC plugged into the VoIP phone: