North America not interested in IP V6

Wed Jul 30 18:39:09 UTC 2003

At 13:59 +0200 7/30/03, Marcel Lemmen wrote:
>Well, now we are talking about IPv6, I can ask a question right here ;)
>
>Does anyone have any experiences with the Cisco IPv6 IOS (T or S
>releases)? Can be either good or bad experiences. I heard there were some
>issues (router freezes etc) with the T releases...

We've been running 12.2(n)T for the past two years, always with both 
IPv4 multicast and IPv6 turned on. v6 support has always been good. 
We had problems early on with multicast bugs, including some that 
seemed to have been reintroduced into that train, but those have been 
squashed. And recent versions have improved v6 performance, at least 
on the 72xx and 75xx platforms (I haven't tested anything else).

Our current standard version is 12.2(15)T5 and we have no outstanding 
issues with it. Our customers who use v6 are running T train and 
12.3(1) on 75xx/72xx, and 12.0 S train on 12xxx. They all run v4 
multicast as well. I've a test router on 12.3(1a) and it seems OK, 
but no extensive testing yet.

BTW, we're an R&E network, not a commercial ISP, so we have different 
goals and different operational requirements. . .

Bill.
-- 
Bill Owens
Manager, Network Development
NYSERNet