Hi All, Can some please help us in finding the error here , this is our serial interface which is keep bouncing regularly , our telco provider are not able to see any issues on their end . == ukld-pop-e-1> show int serial 6/0:1 Serial6/0:1 is up, line protocol is up Hardware is PA-MC-8TE1 Plus Description: BOC-Spoke_LDN/CU-ZAB/CUMV001_2011-2781 Internet address is 21.234.15.25/30 MTU 1500 bytes, BW 2048 Kbit, DLY 20000 usec, reliability 255/255, txload 2/255, rxload 3/255 Encapsulation HDLC, crc 16, loopback not set Keepalive set (10 sec) Last input 00:00:00, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 227902 Queueing strategy: Class-based queueing Output queue: 0/1000/64/227902 (size/max total/threshold/drops) Conversations 0/4/256 (active/max active/max total) Reserved Conversations 2/2 (allocated/max allocated) Available Bandwidth 0 kilobits/sec 5 minute input rate 32000 bits/sec, 47 packets/sec 5 minute output rate 18000 bits/sec, 14 packets/sec 421016468 packets input, 2193675308 bytes, 0 no buffer Received 2049546 broadcasts, 13701265 runts, 164 giants, 0 throttles 47499988 input errors, 2259193 CRC, 0 frame, 0 overrun, 0 ignored, 17426852 abort 355412056 packets output, 2922733315 bytes, 0 underruns 0 output errors, 0 collisions, 328 interface resets 0 output buffer failures, 0 output buffers swapped out 107 carrier transitions no alarm present Timeslot(s) Used:UNFRAMED, transmit delay is 0 flags ukld-pop-e-1> Here is the log: 006877: Feb 10 21:56:34.184 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to up 006888: Feb 13 15:05:45.956 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to down 006889: Feb 13 15:06:25.956 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to up 006909: Feb 15 18:31:56.279 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to down 006910: Feb 15 18:34:16.279 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to up 006933: Feb 20 19:20:17.775 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to down 006944: Feb 20 23:26:17.821 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to up 006945: Feb 20 23:29:37.821 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to down 006946: Feb 20 23:30:27.821 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to up 006947: Feb 20 23:43:37.821 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to down 006948: Feb 21 00:05:57.825 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to up 006951: Feb 21 06:41:17.858 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to down 006952: Feb 21 06:41:27.858 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to up 006953: Feb 21 06:51:17.858 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to down 006954: Feb 21 07:02:07.862 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to up 006955: Feb 21 07:06:47.862 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to down 006956: Feb 21 09:54:47.868 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to up 006957: Feb 21 16:27:47.931 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to down 006958: Feb 21 16:30:37.931 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to up 006961: Feb 21 18:20:17.937 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to down 006962: Feb 21 22:34:07.951 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to up 006965: Feb 21 22:39:17.951 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to down 006966: Feb 21 22:55:57.951 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to up 006967: Feb 21 22:59:07.951 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to down 006968: Feb 21 23:23:17.951 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to up 006969: Feb 21 23:40:47.951 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to down 006976: Feb 22 05:59:08.115 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to up 006977: Feb 22 06:12:18.115 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to down 006978: Feb 22 06:22:08.115 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to up 006981: Feb 22 06:42:28.123 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to down 006982: Feb 22 15:06:48.145 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to up 006983: Feb 22 15:55:58.172 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to down 006984: Feb 22 15:56:08.172 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to up 006985: Feb 22 15:57:08.172 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to down 006986: Feb 22 15:58:08.172 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to up 006987: Feb 22 16:16:28.172 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to down 006988: Feb 22 16:29:08.172 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to up 006991: Feb 23 01:58:38.220 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to down 006992: Feb 23 03:13:18.252 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to up ukld-pop-e-1> show int serial 6/0:1 Serial6/0:1 is up, line protocol is up Hardware is PA-MC-8TE1 Plus Description: BOC-Spoke_LDN/CU-ZAB/CUMV001_2011-2781 Internet address is 21.234.15.25/30 MTU 1500 bytes, BW 2048 Kbit, DLY 20000 usec, reliability 255/255, txload 2/255, rxload 3/255 Encapsulation HDLC, crc 16, loopback not set Keepalive set (10 sec) Last input 00:00:00, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 227902 Queueing strategy: Class-based queueing Output queue: 0/1000/64/227902 (size/max total/threshold/drops) Conversations 0/4/256 (active/max active/max total) Reserved Conversations 2/2 (allocated/max allocated) Available Bandwidth 0 kilobits/sec 5 minute input rate 32000 bits/sec, 47 packets/sec 5 minute output rate 18000 bits/sec, 14 packets/sec 421016468 packets input, 2193675308 bytes, 0 no buffer Received 2049546 broadcasts, 13701265 runts, 164 giants, 0 throttles 47499988 input errors, 2259193 CRC, 0 frame, 0 overrun, 0 ignored, 17426852 abort 355412056 packets output, 2922733315 bytes, 0 underruns 0 output errors, 0 collisions, 328 interface resets 0 output buffer failures, 0 output buffers swapped out 107 carrier transitions no alarm present Timeslot(s) Used:UNFRAMED, transmit delay is 0 flags ukld-pop-e-1> router1> show int serial 6/0:1 Serial6/0:1 is up, line protocol is up Hardware is PA-MC-8TE1 Plus Description: **removed ** Internet address is x.x.x.x MTU 1500 bytes, BW 2048 Kbit, DLY 20000 usec, reliability 255/255, txload 2/255, rxload 3/255 Encapsulation HDLC, crc 16, loopback not set Keepalive set (10 sec) Last input 00:00:00, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 227902 Queueing strategy: Class-based queueing Output queue: 0/1000/64/227902 (size/max total/threshold/drops) Conversations 0/4/256 (active/max active/max total) Reserved Conversations 2/2 (allocated/max allocated) Available Bandwidth 0 kilobits/sec 5 minute input rate 32000 bits/sec, 47 packets/sec 5 minute output rate 18000 bits/sec, 14 packets/sec 421016468 packets input, 2193675308 bytes, 0 no buffer Received 2049546 broadcasts, 13701265 runts, 164 giants, 0 throttles 47499988 input errors, 2259193 CRC, 0 frame, 0 overrun, 0 ignored, 17426852 abort 355412056 packets output, 2922733315 bytes, 0 underruns 0 output errors, 0 collisions, 328 interface resets 0 output buffer failures, 0 output buffers swapped out 107 carrier transitions no alarm present Timeslot(s) Used:UNFRAMED, transmit delay is 0 flags == Logs == Feb 10 21:56:34.184 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to up Feb 13 15:05:45.956 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to down Feb 13 15:06:25.956 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to up Feb 15 18:31:56.279 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to down Feb 15 18:34:16.279 PRC: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial6/0:1, changed state to up Feb 20 19:20:17.775 PRC: %LINEPROTO
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