[NTISP] frame-relay

Ugo Uggetti ( ugo@venus.it )
Tue, 16 Mar 1999 16:23:00 +0100

Hello.

Just a question about frame-relay and cisco routers: I was unable to get an
answer up to now, so I hope that someone here had the same problem before
and solved it.

All works correctly, but I can see once a week errors like the following
using "sh log":

*Mar 9 18:35:46: %FR-5-DLCICHANGE: Interface Serial0 - DLCI 134 state
changed to INACTIVE
*Mar 9 18:35:46: %LINEPROTO-5-UPDOWN: Line protocol on Interface
Serial0.2, changed state to down
*Mar 9 18:39:50: %FR-5-DLCICHANGE: Interface Serial0 - DLCI 134 state
changed to ACTIVE
*Mar 9 18:39:50: %LINEPROTO-5-UPDOWN: Line protocol on Interface
Serial0.2, changed state to up

This happens on a Cisco 2501 router, using encapsulation frame-relay. The
bandwidth (256k) is NOT full when this problem occurs, and when it occurs,
the line is always down for 1-3 minutes only.

I can only see another apparently strange problem: the local lan is
connected to a 3com 10/100 hub, and even if each local machine has a 100
Mbit connection to the hub, and even if the lan has a trafic of about 5% of
its capacity, I can see a large number of collisions with the command "sh
int e0" on that router (about 3000/day).

Ideas?

Thank you.

Regards,
Ugo Uggetti

---Ugo Uggetti  (ugo@venus.it)Venus TelCom(+39) 0382-578964http://www.venus.it

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