Hi Rishi
thanks for your assistance , I did check the keep alive on the SSG20 they are on( by default its set to ON :
get int serial1/0 frame-relay lmi
Frame-Relay physical interface serial1/0 LMI values:
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LMI standard / Device type : ANSI / DTE
LMI sequence number send/recv : 231 / 78
Link status : Up
Event history : ................ (e - error, . - ok)
LMI Keepalive message : ON <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
Next keepalive timer expire : 3 seconds later
t391-DTE (keepalive interval) : 10 (default 10 sec)
n391-DTE (full status poll interval) : 6 (default 6)
n392-DTE (error threshold) : 3 (default 3)
n393-DTE (monitored event-count) : 4 (default 4)
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SSG20)-> get int serial1/0 frame-relay
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phy-interface serial1/0: total 1 DLCIs
N - new, D - delete, A - active, I - inactive
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dlci status total_downtime last_down_time sub-interface IP-address
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101 A 00:34:51 05/26/2016 17:21:20 serial1/0.1 10.X.X.X
Frame-Relay physical interface serial1/0 LMI values:
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LMI standard / Device type : ANSI / DTE
LMI sequence number send/recv : 247 / 94
Link status : Up
Event history : ................ (e - error, . - ok)
LMI Keepalive message : ON
Next keepalive timer expire : 5 seconds later
t391-DTE (keepalive interval) : 10 (default 10 sec)
n391-DTE (full status poll interval) : 6 (default 6)
n392-DTE (error threshold) : 3 (default 3)
n393-DTE (monitored event-count) : 4 (default 4)
serial1/0 Frame-Relay statistics:
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| Ingress counter | Egress counter
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data pkt: | 888543 | 864012
data byte: | 359136264 | 121463060
FECN pkt: | 0 | 0
BECN pkt: | 0 | 0
DE pkt: | 0 | 0
error pkt: | 166 | 108
drop pkt: | 166 | 108
unknown pkt: | 0 | 0
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LMI pkt: | 37589 | 37987
enquire pkt: | 0 | 31651
fullenq pkt: | 0 | 6336
response pkt: | 31271 | 0
fullresp pkt: | 6318 | 0
error pkt: | 0 | 0
losesequence: | 0 | 0
Last LMI response received: 05/26/2016 17:36:04
Last LMI enquiry send : 05/26/2016 17:36:04
I hve cleared all the counters and event , I shall monitor this .