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List:       cisco-nsp
Subject:    RE: [nsp] Frame circuit losing LMI with ~350 PVCs
From:       "Wade Williams" <wwilliam () cisco ! com>
Date:       2000-04-25 13:12:52
[Download RAW message or body]

One of the limitations of Frame Relay (any vendor's Frame Relay) is that all
PVC's must fit within a single LMI update.

It may be that you've got more PVC's than will fit.  Try increasing the MTU.

(Then again, this may not be it at all)

Wade
---------------------------------------------------------------------------
Wade Williams                      "Put your message in a modem
Systems Engineer, Cisco Systems     and throw it in the Cyber Sea."
NSP Ohio Valley Region                 - N. Peart
Brentwood, TN
615-221-2918
wwilliam@cisco.com
---------------------------------------------------------------------------

-----Original Message-----
From: Charles Sprickman [mailto:spork@inch.com]
Sent: Monday, April 24, 2000 5:42 PM
To: cisco-nsp@puck.nether.net
Subject: [nsp] Frame circuit losing LMI with ~350 PVCs


Hi,

Can anyone confirm/deny the following symptoms:

-PA-4T, T1 on a serial port running FR to an ATM switch doing FR emu.
-at about 350 PVCs, LMI drops
-'sh int' shows lots of interface resets, input errors, and giants
-backing off to about 320 PVCs brings LMI back
-ATM switch on the other end is Stratacom BPX
-seen on 11.x, 12.x IOS

Thanks,

Charles

| Charles Sprickman                  | Internet Channel
| INCH System Administration Team    | (212)243-5200
| spork@inch.com                     | access@inch.com

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