Good day, the 3GE-GBIC-SC card does IPv6 in software on the linecard. Is anyone aware of a problem that IPv6 traffic that is software-forwarded could influence IPv4 hardware forwarding? It looks like a linecard could hit 100% with ~80 Mbit/s of v6 traffic + other tasks like TAG Stats Backgr or CEF process etc and also suddenly stops forwarding IPv4 traffic or AT LEAST stops responding to ICMP Echo (directed to the interface IP) or loses IP protocols like LDP or OSPF which could point to problems GRP/PRP -> Interface. It seems like this happens exactly at that moment when the card's CPU hits 100%.
I had expected that the CPU forwarded v6 could lead to higher RTT for v6 etc but I am surprised that it seems like it could influence IP protocols. I know that the Engine 2 card is not state-of-the-art especially for v6 traffic but I am looking for a confirmation that this behaviour is indeed something that could happen. If so, I might go to for 4GE-SFP-LC or similar which does v6 in hardware AFAIK. Thank you Sascha _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/