frame relay timers

From: Bell, Mark (Houston) (m.bell@xxxxxxxxxx)
Date: Thu Oct 12 2000 - 19:20:30 GMT-3


   
I am working on a scenario that requires the frame relay links in the
network to be configured with a 15 second timeout. I used the "keepalive
15" on the interface to do this. However, on the DCE side (the router
acting as the frame switch), no matter what I set the keepalive timer to
(10, 15, or 20 seconds), I always end up with almost every keepalive
interval resulting in both a timeout and a successful response. The reason
I noticed this is because at one point, the "frame switch" said that line
protocol was down but I was still passing traffic.

It has not seemed to cause any problems as far as PVCs going inactive but it
is strange to see all these LMI timeouts. Below is the output of "show
frame lmi" for the interface that has the most timeouts. Any ideas as to
why this might be happening?

LMI Statistics for interface Serial0/0:1 (Frame Relay DCE) LMI TYPE = CISCO
  Invalid Unnumbered info 0 Invalid Prot Disc 0
  Invalid dummy Call Ref 0 Invalid Msg Type 0
  Invalid Status Message 0 Invalid Lock Shift 0
  Invalid Information ID 0 Invalid Report IE Len 0
  Invalid Report Request 0 Invalid Keep IE Len 0
  Num Status Enq. Rcvd 61 Num Status msgs Sent 61
  Num Update Status Sent 0 Num St Enq. Timeouts 53

----------------------------------------------
Kenneth Mark Bell, CCNP, NNCSE
Network Engineer II m.bell@wilcom.com
Williams Communications Solutions
t: (713) 307-7254 p: (713) 912-2276



This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 08:25:26 GMT-3