Hi, Could anyone help with the following : Part of our network consists of
Cisco 4500 routers connected via BT frame relay links.
The problem I am seeing on all 10 routers is links going down then up, often
for exactly one minute : eg
.Oct 24 16:25:32 UTC: %FR-5-DLCICHANGE: Interface Serial2/0 - DLCI 592 state
cha
nged to INACTIVE
.Oct 24 16:25:32 UTC: %LINEPROTO-5-UPDOWN: Line protocol on Interface
Serial2/0.
4, changed state to down
.Oct 24 16:26:32 UTC: %FR-5-DLCICHANGE: Interface Serial2/0 - DLCI 592 state
cha
nged to ACTIVE
.Oct 24 16:26:32 UTC: %LINEPROTO-5-UPDOWN: Line protocol on Interface
Serial2/0.
4, changed state to up
The PTT have tested all lines and insist they are clean
This is happening about 5 - 10 times a day. The IOS was upgraded not too
long ago I think. It is now 12.0(4)
This doesn't seem to have much impact but my customer just wants to know
why!
Any ideas/suggestions very welcome
TIA
Dave Welch
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