[c-nsp] Troubleshooting OC3

[Paul Stewart]

We have a pair of OC3's coming into a 7206VXR currently from an AFC
DSLAM shelf.... Getting fair amount of errors and just wondering how to
troubleshoot it.... If anyone has any input please feel free..;)

Config:

interface ATM1/0
 description Millbrook ATM Interface
 no ip address
 no atm ilmi-keepalive
 no clns route-cache
!
interface ATM1/0.1 multipoint
 description AFC Traffic
 range pvc 0/32 0/600
  protocol pppoe
 !
 range pvc 6/32 6/215
  protocol pppoe
 !
 range pvc 7/32 7/111
  protocol pppoe
 !
 range pvc 8/32 8/121
  protocol pppoe

Etc. etc....

interface ATM2/0
 description Keene ATM Inteface
 no ip address
 no atm ilmi-keepalive
 no clns route-cache
!
interface ATM2/0.1 multipoint
 description Keene AFC Traffic
 range pvc 1/32 1/351
  protocol pppoe
 !
 range pvc 2/32 2/257
  protocol pppoe
 !
 range pvc 3/32 3/151
  protocol pppoe

Etc. etc...


Interface Output:

acs1-con-mb#sh interfaces ATM2/0
ATM2/0 is up, line protocol is up
  Hardware is ENHANCED ATM PA
  Description: Keene ATM Inteface
  MTU 4470 bytes, sub MTU 4470, BW 149760 Kbit, DLY 80 usec,
     reliability 255/255, txload 9/255, rxload 8/255
  Encapsulation ATM, loopback not set
  Encapsulation(s): AAL5
  4095 maximum active VCs, 1027 current VCCs
  VC Auto Creation Disabled.
  VC idle disconnect time: 300 seconds
  0 carrier transitions
  Last input 00:00:00, output 00:00:00, output hang never
  Last clearing of "show interface" counters 4d06h
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: Per VC Queueing
  5 minute input rate 5014000 bits/sec, 1405 packets/sec
  5 minute output rate 5545000 bits/sec, 1374 packets/sec
     430617336 packets input, 2272177816 bytes, 1 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     20966 input errors, 20966 CRC, 0 frame, 0 overrun, 0 ignored, 0
abort
     426183267 packets output, 2319067260 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 output buffer failures, 0 output buffers swapped out
acs1-con-mb#sh interfaces ATM1/0
ATM1/0 is up, line protocol is up
  Hardware is ENHANCED ATM PA
  Description: Millbrook ATM Interface
  MTU 4470 bytes, sub MTU 4470, BW 149760 Kbit, DLY 80 usec,
     reliability 255/255, txload 24/255, rxload 22/255
  Encapsulation ATM, loopback not set
  Encapsulation(s): AAL5
  4095 maximum active VCs, 1376 current VCCs
  VC Auto Creation Disabled.
  VC idle disconnect time: 300 seconds
  0 carrier transitions
  Last input 00:00:00, output 00:00:00, output hang never
  Last clearing of "show interface" counters 4d06h
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: Per VC Queueing
  5 minute input rate 13390000 bits/sec, 3911 packets/sec
  5 minute output rate 14511000 bits/sec, 3755 packets/sec
     1149228019 packets input, 2933277581 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     41092 input errors, 41092 CRC, 0 frame, 0 overrun, 0 ignored, 0
abort
     1109671884 packets output, 2453813507 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 output buffer failures, 0 output buffers swapped out

 
Paul Stewart
IP Routing/Switching
Nexicom Inc.
http://www.nexicom.net