[nsp] Stable 6500 hybrid code?

[Robert A. Hayden]

I've been doing some testing with 7.4.2 and 12.1.12c-E4 over the past
couple weeks and so far it seems ok.

FYI:  I did get a caveat in the mail suggesting problems with 12.1.13-E1
and it's status being changed to "deferred", and suggesting going to
12.1.13-E2 (this is for hybrid MSFC2 - Native mode is still E1)

On Wed, 20 Nov 2002, Jared Mauch wrote:

> 	We are using Native (yes, you asked for hybrid)
>
> 	12.1(13)E1 works well for us.  We've seen none of our nasty
> problems we've seen in prior releases.
>
> 	- jared
>
> On Wed, Nov 20, 2002 at 08:47:22PM -0800, Steve Francis wrote:
> > What are the current recommendations anyone has for stable 6500 code,
> > for hybrid mode SupII/MSFC2?
> >
> > (Fairly vanilla BGP, OSPF, HSRP, with some PBR)
> >
> > We have been running 6.3(6) CatOS,  12.1(8b)E9 IOS.
> >
> > However, this morning we got inconsistency on the CEF tables in the
> > switch and the router.  At first it looked like a RPF error (switch
> > would inconsistently drop packets only if the source address was routed
> > out  one particular peering.) Yet RPF counters did not increment.
> >
> > To avoid that, we reloaded the router, then basically nothing worked,
> > and we had to admin down almost all interfaces to get a working network.
> > (While you could ping an interface of the router via a router on a local
> > subnet, and things like the loopback of the router were being advertised
> > in OSPF, you could not ping the loopback from even an adjacent, shared
> > interface router.)  An ACL with the log keyword made individual IP's
> > work, forcing CPU switching.
> >
> > At this point the TAC engineer on the router tried "no mls ip unicast ",
> > which caused the whole switch to crash with TLB Exception. (And even
> > more fun - not respond to the console except with garbled Hex. Needed a
> > power cycle.)
> >
> > I cannot find any bugs matching what we experienced, so I cant see what
> > versions fix them.
> >
> > Most importantly, anyone have recommendations for stable CatOS and IOS?
> >
> > Anyone recognize the above bugs?
> >
> > Anyone have any idea how to make a 6500 run again if it crashes, and
> > outputs this:
> > TLB Exception (load/instruction fetch) occurred.
> >
> > Software ver
> > sion =  6.3(6)
> >               Process ID #1b, Name = Fib
> >                                             EPC: 809EFC54
> > {stack trace}
> > GDB: TLB Exception (load/instruction fetch)
> >                                            GDB: The system has trapped
> > into the debugger.
> >          GDB: It will hang until examined with gdb.
> >                                                    Please use normal
> > gdb. special gdb will not work on this apollo+ board
> > ||||$S10#b4
> >
> > Getting remote staff to power cycle remote core switches (which,
> > incidentally, failed in such an interesting way that I could still talk
> > to some nodes attached to it, but it seemed to take out most nodes on
> > its functionally paired switch) was not the quickest way to restore service.
> >
> > Thx
> >
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