On 19 January 2012 03:29, Dave Weis <[email protected]> wrote: >> >> This might not be possible but seems like it should be somehow. I am trying >> to find a way to terminate multiple inner vlan's in a single outer vlan into >> the same bridge domain. The intent is to terminate DSL subscribers that come >> in via ATM OC3 and then go through an Adtran DSLAM where each VCI is >> converted to a corresponding inner VLAN tag. For example, VCI 54 = inner >> VLAN 54. I can set the outer tag number. >> >> Looking at the data sheet for the ME3600X/ME380X at >> http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/12.2_52_ey/configuration/guide/swevc.html >> suggests that this device may be able to do what I'm trying to do but I'm >> not familiar with them. >> >> Has anyone done something similar?
>I'm not entirely sure if I understand you correctly, but if you strip >the inner vlan on the ingress how would you know what inner vlan to >assign to all egress packets that should go towards that internal tag >of 54? For that to work the device that does the operation would have >to remember not only the MAC address but also the inner vlan from the >ingress packets. >We solved this by making the BRAS interpret double tags and that >worked well for us. That's a great question, I would suppose it has to keep a table of MAC to inner tag as they are stripped. Are you using PPPoE on your BRAS? This is for a legacy setup with 1000+ bridged modems at the far end. Thanks! Dave _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
