Gregory Boehnlein wrote:
Isn't 12.2(25)S really really not recommended on 7500? I seem to
remember several exchanges where this was mentioned by cisco people here.
I'm going to look through the list archives and see if I can find those
references. Everything that I've seen revolves around earlier iterations of
the code, not the S15 release that has been out for a year.
I'm happy to consider upgrading to a different IOS version.. just looking
for recommendations on what I should be looking at for a 7515 w/ Dual RSP
4+, 5 VIP cards and the need for LLQ, OSPF, BGP, VLANs, MLPPP etc..
I've been very happy with 12.0(27)S5 for MLPPP, LLQ, OSPF, BGP, MPLS.
VLANs could be an issue - we had problems with subinterfaces not being
fully CEF-switched in earlier 12.0(27)S releases and abandoned that
configuration. SSO is quite good. It'd be 100% stable if it weren't
for VIP2-50s having memory issues and bombing out occasionally, but
that's not a code issue. Lucky guess, the first two routers I checked
have uptimes of 2y13w.
I've been somewhat happy with 12.0(32)S[7,8,10] for "simple" core
routing. MPLS Traffic Engineering is garbage, at least when talking to
GSRs, and we've now officially abandoned MPLS TE on 7507s entirely.
That said, I like Jon Lewis' suggestion to switch to enough 7206s to
carry the PAs you're using. Single forwarding engine on a clean, very
well baked architecture means simple and reliable. We're moving to
7206s for CT3 aggregation, GSRs for DS3 and OCx, and
6500/7600/Sup720-3BXL for Ethernet.
pt
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