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HWIC-2T

Kesar123456
Level 1
Level 1

Hello,

We have configured new 2911 router with HWIC-2T with it.

However we are seeing serial interfaces up, but can hardly ping other end. Again we are seeing a lot of CRC errors on serial interface.    

But if we connected same cable, with other old router 2811, it works fine. Confiuration is same on both the routers.

interface Serial0/0/1

no ip address

encapsulation frame-relay

frame-relay lmi-type ansi

!

interface Serial0/0/1.100 point-to-point

description Verizon Business MPLS Circuit wenatchee-wa_bcbjy6m40001-1763915

ip address 152.176.134.114 255.255.255.252

      

Thanks

Arun

2 Replies 2

Kesar123456
Level 1
Level 1

Additional info.

interface Serial0/0/1
no ip address
encapsulation frame-relay
frame-relay lmi-type ansi
!
interface Serial0/0/1.100 point-to-point
description Verizon Business MPLS Circuit wenatchee-wa_bcbjy6m40001-1763915
ip address 152.176.134.114 255.255.255.252
frame-relay interface-dlci 100 IETF
!
interface Dialer1
no ip address

Wenatchee_2911#ping 152.176.134.113
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 152.176.134.113, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
Wenatchee_2911#ping 152.176.134.113
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 152.176.134.113, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
Wenatchee_2911#show ip int brief
Interface                  IP-Address      OK? Method Status                Protocol
Embedded-Service-Engine0/0 unassigned      YES NVRAM  administratively down down
GigabitEthernet0/0         10.51.8.1       YES manual up                    up
GigabitEthernet0/1         71.83.247.66    YES NVRAM  up                    up
GigabitEthernet0/2         unassigned      YES NVRAM  administratively down down
Serial0/0/0                unassigned      YES NVRAM  administratively down down
Serial0/0/0.100            152.176.134.114 YES manual administratively down down
Serial0/0/1                unassigned      YES NVRAM  up                    up
Serial0/0/1.100            152.176.134.114 YES manual up                    up
Dialer1                    unassigned      YES unset  up                    up
Loopback1                  unassigned      YES unset  up                    up
NVI0                       10.51.8.1       YES unset  up                    up
Tunnel1                    172.18.1.48     YES NVRAM  up                    up
Tunnel2                    172.19.2.205    YES NVRAM  administratively down down
Tunnel5                    172.19.5.209    YES NVRAM  up                    up
Tunnel99                   172.17.250.38   YES NVRAM  up                    up
Wenatchee_2911#show int Serial0/0/1
Serial0/0/1 is up, line protocol is up
  Hardware is WIC MBRD Serial
  MTU 1500 bytes, BW 1544 Kbit/sec, DLY 20000 usec,
     reliability 141/255, txload 1/255, rxload 1/255
  Encapsulation FRAME-RELAY, loopback not set
  Keepalive set (10 sec)
  LMI enq sent  11, LMI stat recvd 6, LMI upd recvd 0, DTE LMI up
  LMI enq recvd 0, LMI stat sent  0, LMI upd sent  0
  LMI DLCI 0  LMI type is ANSI Annex D  frame relay DTE  segmentation inactive
  FR SVC disabled, LAPF state down
  Broadcast queue 0/64, broadcasts sent/dropped 3/0, interface broadcasts 0
  Last input 00:00:09, output 00:00:07, output hang never
  Last clearing of "show interface" counters 00:02:15
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: weighted fair
  Output queue: 0/1000/64/0 (size/max total/threshold/drops)
     Conversations  0/7/256 (active/max active/max total)
     Reserved Conversations 0/0 (allocated/max allocated)
     Available Bandwidth 1158 kilobits/sec
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     8 packets input, 201 bytes, 0 no buffer
     Received 0 broadcasts (0 IP multicasts)
     487653 runts, 0 giants, 0 throttles
     1265804 input errors, 778151 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     24 packets output, 1722 bytes, 0 underruns
     0 output errors, 0 collisions, 3 interface resets
     0 unknown protocol drops
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions
     DCD=up  DSR=up  DTR=up  RTS=up  CTS=up

Wenatchee_2911#

You should engage TAC on this for possible hardware replacement.

Note, for best results, use native T1 interface, not serial interfaces and converter.

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