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Cisco 1721 CSU/DSU logs
I have an issue with my provider where the circuit gets dropped every now and then and when they do the test the circuit comes back up and they test clean to the CSU/DSU. Is there a way to check on the actual router (Cisco 1721) if there is an issue with its CSU/DSU?
This is the sh int section for the serial interfaces. I see a lot of CRC, input errors and interface resets, what do those mean? Also, why are there two Serial interfaces, both CSU/DSU and one has a public address?
Serial0 is up, line protocol is up
Hardware is PQUICC with Fractional T1 CSU/DSU
Description: To Worldcom (cuicruitID#)
Backup interface Dialer2, failure delay 60 sec, secondary disable delay 60 sec
,
kickin load not set, kickout load not set
MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 4/255
Encapsulation FRAME-RELAY IETF, loopback not set
Keepalive set (10 sec)
LMI enq sent 538533, LMI stat recvd 538093, LMI upd recvd 0, DTE LMI up
LMI enq recvd 102, LMI stat sent 0, LMI upd sent 0
LMI DLCI 0 LMI type is ANSI Annex D frame relay DTE
Broadcast queue 0/64, broadcasts sent/dropped 89913/0, interface broadcasts 0
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 9w2d
Input queue: 0/75/1/0 (size/max/drops/flushes); Total output drops: 4864
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 25000 bits/sec, 6 packets/sec
5 minute output rate 4000 bits/sec, 5 packets/sec
58130189 packets input, 3324225346 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 50 giants, 0 throttles
16840408 input errors, 787504 CRC, 9660431 frame, 0 overrun, 0 ignored, 6392465 abort
61922793 packets output, 681119928 bytes, 0 underruns
0 output errors, 0 collisions, 7804 interface resets
0 output buffer failures, 0 output buffers swapped out
115 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
Serial0.1 is up, line protocol is up
Hardware is PQUICC with Fractional T1 CSU/DSU
Interface is unnumbered. Using address of FastEthernet0 (xxx.xxx.xxx.161)
MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 4/255
Encapsulation FRAME-RELAY IETF
Last clearing of "show interface" counters never
Help much appreciated!
Thanks!
Marek
This is the sh int section for the serial interfaces. I see a lot of CRC, input errors and interface resets, what do those mean? Also, why are there two Serial interfaces, both CSU/DSU and one has a public address?
Serial0 is up, line protocol is up
Hardware is PQUICC with Fractional T1 CSU/DSU
Description: To Worldcom (cuicruitID#)
Backup interface Dialer2, failure delay 60 sec, secondary disable delay 60 sec
,
kickin load not set, kickout load not set
MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 4/255
Encapsulation FRAME-RELAY IETF, loopback not set
Keepalive set (10 sec)
LMI enq sent 538533, LMI stat recvd 538093, LMI upd recvd 0, DTE LMI up
LMI enq recvd 102, LMI stat sent 0, LMI upd sent 0
LMI DLCI 0 LMI type is ANSI Annex D frame relay DTE
Broadcast queue 0/64, broadcasts sent/dropped 89913/0, interface broadcasts 0
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 9w2d
Input queue: 0/75/1/0 (size/max/drops/flushes); Total output drops: 4864
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 25000 bits/sec, 6 packets/sec
5 minute output rate 4000 bits/sec, 5 packets/sec
58130189 packets input, 3324225346 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 50 giants, 0 throttles
16840408 input errors, 787504 CRC, 9660431 frame, 0 overrun, 0 ignored, 6392465 abort
61922793 packets output, 681119928 bytes, 0 underruns
0 output errors, 0 collisions, 7804 interface resets
0 output buffer failures, 0 output buffers swapped out
115 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
Serial0.1 is up, line protocol is up
Hardware is PQUICC with Fractional T1 CSU/DSU
Interface is unnumbered. Using address of FastEthernet0 (xxx.xxx.xxx.161)
MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 4/255
Encapsulation FRAME-RELAY IETF
Last clearing of "show interface" counters never
Help much appreciated!
Thanks!
Marek
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maredzki