Hello all, I have been banging my head against the wall for some time now trying to figure out why the DSCP bits are being stripped and replaced with "0" on all packets when coming from a customer connected to one of our ME3400 switches. The switch is not doing any routing for them. It is just acting as a L2 transport between their gear and our network.
Customer is connected to to port FA0/24 with that port being an access switchport. The VLAN associated with it is not an interface on the switch. The VLAN is simply just trunked via Gig0/1 to a 6509. The customer is setting dscp bit EF on their voice traffic and when that traffic enters the ME3400, those bits change to 0. Is there something that needs to be set to prevent this data from being stripped? We have monitored the traffic with an RSPAN port and are not able to see anything other then dscp 0 on all traffic for this interface. While I have not looked at other interfaces, I suspect this is the same for all of them. Below is the config for this. vlan 800 remote-span ! vlan 936 ! interface FastEthernet0/24 description ETHERNET - Circuit ID: xxxxxxxxxxxxxx switchport access vlan 936 ! interface GigabitEthernet0/1 description uplink to 6509 port-type nni switchport trunk allowed vlan 32,500-520,800,936 switchport mode trunk load-interval 30 speed nonegotiate ! monitor session 3 source interface Fa0/24 monitor session 3 destination remote vlan 800 Any ideas would be greatly appreciated. Thanks, -Lee _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
