[c-nsp] Cisco Multilink PPP

[Rodney Dunn]

Without asking you for more data on the crashes themselves
the general recommendation nowadays for the 75xx is 12.4(16)
code. The reason is 12.4 code will be the bugfix path for
the rest of the 75xx's support life.

That is where we are advising all 75xx customers migrate
to if they are not on 12.0S. If so they need to stay on the
latest throttle there.

dMLPPP on a 75xx is pretty complex actually. I've not seen
any such bugs reported in late 12.3 mainline or 12.4 code recently.

Rodney

On Mon, Jun 25, 2007 at 02:26:57PM -0700, Troy Beisigl wrote:
> Hi,
> 
>  
> 
> We are having a problem with Multilink PPP on a 7507 RSP 8 with 4 VIP2-50s.
> The RSP is running 256M and the VIPS are running 128M each. We are running
> dCEF due to VoIP QoS needs and have 8 multilink interfaces. 7 of these
> multilinks are 2 T1s and 1 is 4 T1s is size.
> 
>  
> 
> Our problem is that we seem to have the VIP in slot 4 crashing. We have
> replaced the ram first on this and the problem went away for a week. We
> replaced the whole VIP next and still have problems. When it crashes,
> multilinks that have T1s on that VIP no longer will pass traffic unless we
> do full reboot. 
> 
>  
> 
> VIP #4 has 7 interfaces that are in multilink bundles. It has 14 interfaces
> that are running QoS  (policy map low latency queueing). We currently are
> running IOS Version 12.3(15b).
> 
>  
> 
> Does anyone have any ideas as to what is causing this and what we can do to
> solve it? 
> 
> Troy Beisigl
> Network Director
> I2B Networks, Inc
> 858-715-8500 X 1005
> 
>  
> 
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