Re: (PM) Strange Frame Realy Connectivity Problem

Kyle Platts (kwplat1@uswest.com)
Mon, 01 Mar 1999 09:35:01 -0600

Paul Hughes wrote:
>
> This Still sounds like a Pac Bell problem they have probably screwed up
> the path on the DLCI's you can have them remap you know DLCI's if the
> problem does not get resolved you may want to check your LMI settingsmake
> sure they are pooling at 10 seconds and just hammer away at TELCO!!!

That makes no sense. The only reason a switch should discard packets is
if 1) incorrect DLCI, 2) CRC failure or 3) marked DE and congestion is
present.

You need a protocol analyzer on here to figure out why the packets are
being discarded. There was a problem with the WAN card in the PM3 where
it would send all frame relay data on an invalid DLCI, and the switch
would discard accordingly. Though I've never seen this in the IRX or 2eR
series. Is link management up? If it is, this would indicate the link
management packets are making it through, but the data DLCI packets are
not.

Alos the router polls the switch, not the other way around. The switch
should be set to allow you 15 seconds to get your poll in. The router
should be set to 10 seconds. These are configurable, so double check.

Be smart when troubleshooting, don't just throw crap at the wall and see
what sticks.

-- 
Kyle Platts
Network Engineer
!NTERPRISE Networking Services
U S WEST Communications
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