[c-nsp] C7600/ES+ double tagged termination issue

[Walter Keen]

Having some problems with TAC troubleshooting this one.

Wondering if anyone has run into this before

It's a 7606 with an RSP720-3cxl and ES+20g card terminating double tagged traffic as well as pppoe users.  double tagged traffic is terminated using 'access' subinterfaces referencing a unnumbered loopback setup with helper addresses pointing to an external dhcp cluster.  

I keep having issues with the double tagged connections, almost like it stops receiving the data, however pppoe users haven't noted any impact yet.

once this message appears in the logs, it appears to start working again.
TAC seems to be having trouble finding what this message might indicate


Log Buffer (8192 bytes):
FCC8, name: AVLDup list), having 1 elements -Process= "SSM connection manager", ipl= 0, pid= 190
-Traceback= 817B420 832CD28 9718290 9264350 92657F8 9265CE4 9265DFC 96BAE20 8A6AD4C 9725880 972592C 8A6B8C4 8A6BAA8 8A5B694 8A5B7DC 9725880
*Sep 20 12:01:10.191: %SYS-DFC2-3-BADLIST_DESTROY: Removed a non-empty list(19A4FB60, name: AVLDup list), having 1 elements -Process= "SSM connection manager", ipl= 0, pid= 190
-Traceback= 817B420 832CD28 9718290 9264350 92657F8 9265CE4 9265DFC 96BAE20 8A6AD4C 9725880 972592C 8A6B8C4 8A6BAA8 8A5B694 8A5B7DC 9725880
*Sep 20 12:01:10.771: %SYS-DFC2-3-BADLIST_DESTROY: Removed a non-empty list(2D487D60, name: AVLDup list), having 1 elements -Process= "SSM connection manager", ipl= 0, pid= 190




Walter Keen
Network Engineer
Rainier Connect