Karyn,
please take a look at the engineering revision of the bus map scheme for
the hssi controllers,,,look @ the tac pages on cisco.com -
had same sort of problem not long ago and remember there being some
mention of a race condition and/or loop that occurs at times...
cant remember exact scenarion, but this sounds familiar, worth a sort anyway...
piranha-2...
Karyn Ulriksen wrote:
> Steven,
>
> Had this exact scenario occuring on a 7010 a couple years back. Sorry,
> we never did reach resolution on the issue, just jumped to another router.
>
> BUT, I do have a theory and wondered if you could indulge me with a brief
> on your topology (you might want to send this off list to
> kulriksen@sitestream.net). If you're topology is similar to what I was
> using at the time, I may have an answer for you.
>
> Karyn
>
> > -----Original Message-----
> > From: Steven Saner [mailto:ssaner@southwind.net]
> > Sent: Monday, October 16, 2000 9:28 AM
> > To: cisco-nsp@puck.nether.net
> > Subject: [nsp] 7206 HSSI interface resets
> >
> >
> > Description of problem:
> >
> > We have a 7206 that is currently loaded with the following
> > configuration, as of Saturday, 14 October 2000.
> >
> > IOS: Version 12.0(2)XE1
> > Processor: NPE200
> > Memory: 128M
> >
> > Slot 0: Motherboard with FastEthernet interface
> > Slot 1: PA-FE-TX Single FastEthernet adapter
> > Slot 2: PA-MC-8T 8 x T1 adapter
> > Slot 3: HSSI interface
> > Slot 4: PA-MC-8T 8 x T1 adapter
> > Slot 5: PA-4E 4 x Ethernet adapter
> > Slot 6: PA-A3 ATM Adapter
> >
> > We are seeing interface resets on the HSSI interface. The frequency of
> > resets do seem to increase with increased load. The bandwidth load of
> > the HSSI interface does not peak beyond about 50%. It is
> > connected to a
> > DS3 via a Larscom CSU/DSU
> >
> > Prior to Saturday, 14 October 2000, the same router had a PA-MC-8T
> > adapter in slot 3 that was not being used, and there was a dual
> > FastEthernet adapter in Slot 1 (in place of the single FE adapter
> > there now). The HSSI adapter that is in slot 3 now was in a second
> > 7206 connected to the same circuit that it is now. A crossover
> > ethernet cable was used between the two 7206s. In that configuration
> > we did not see any interface resets on the HSSI interface.
> >
> > We have attempted to upgrade the IOS to 12.0(9)S. While that IOS was
> > running (about 1/2 hour) we did not see any interface resets, but we
> > had to revert back to the current IOS because of problems with the ATM
> > sub-interfaces that are associated with bridge-groups for provisioning
> > ADSL service.
> >
> > Any ideas or advice would be appreciated.
> >
> >
> > --
> > ==================================================================
> > Steven Saner SouthWind Internet
> > Access, Inc.
> > ssaner@southwind.net Systems/Network Administrator
> > http://www2.southwind.net/~ssaner http://www.southwind.net
> > 263-7963 Wichita
> > (800)525-7963
> >
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'My Lord Tzu, of the 36 strategems of the Nan Chi Shi.' 'I would submit to you in this case, running away is best'.
General Tan Daoji to Sun Tzu Battle of Lesser Wei circa AD 436
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