Frame Relay keepalives allow end to end monitoring of a frame-relay circuit. This enables the local DLCI status to represent the status of the end to end ciruit.
To enable it has to be configured within a frame relay map-class - so its no good looking under the frame-relay sub interface!!
map-class frame-relay DLCI504
frame-relay end-to-end keepalive request
interface s2/0.54
frame-relay class DLCI504
To verify use the command 'show frame-relay end-to-end keepalive'
End-to-end Keepalive Statistics for Interface Serial2/0 (Frame Relay DTE)
DLCI = 504, DLCI USAGE = LOCAL, VC STATUS = ACTIVE (EEK UP)
SEND SIDE STATISTICS
Send Sequence Number: 91, Receive Sequence Number: 255
Configured Event Window: 3, Configured Error Threshold: 2
Total Observed Events: 111, Total Observed Errors: 38
Monitored Events: 0, Monitored Errors: 0
Successive Successes: 0, End-to-end VC Status: UP
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