From: Richard Dumoulin (richard.dumoulin@vanco.es)
Date: Sat May 08 2004 - 19:11:20 GMT-3
Rich, now I think I hastily answered. I am much more inclined for Smunzani
answer now. It is more probably an issue with the csu/dsu,
--Richard
-----Original Message-----
From: smunzani@comcast.net [mailto:smunzani@comcast.net] 
Sent: domingo, 09 de mayo de 2004 0:04
To: Richard Danu
Cc: 'Richard Danu'; ccielab@groupstudy.com
Subject: RE: DS-3 Issue
Definately clocking issue.
> Another item I forgot to mention, the remote Link does not experience 
> any input errors, however it does have a lot of CRC errors. Both are 
> set to 16Bit, DSU type is 0.
> 
> Serial1/0 is up, line protocol is up
>   Hardware is DSXPNM Serial
>   Internet address is 10.110.30.2/30
>   MTU 1500 bytes, BW 44210 Kbit, DLY 20000 usec,
>      reliability 255/255, txload 42/255, rxload 8/255
>   Encapsulation HDLC, crc 16, loopback not set
>   Keepalive set (10 sec)
>   Restart-Delay is 813352 secs
>   Last input 00:00:00, output 00:00:00, output hang never
>   Last clearing of "show interface" counters 00:01:12
>   Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
>   Queueing strategy: fifo
>   Output queue: 0/40 (size/max)
>   5 minute input rate 1454000 bits/sec, 692 packets/sec
>   5 minute output rate 7414000 bits/sec, 902 packets/sec
>      52438 packets input, 13574689 bytes, 0 no buffer
>      Received 8 broadcasts, 0 runts, 0 giants, 0 throttles
>      0 input errors, 423 CRC, 0 frame, 398 overrun, 0 ignored, 0 abort
>      68678 packets output, 72970720 bytes, 1 underruns
>      0 output errors, 0 collisions, 0 interface resets
>      0 output buffer failures, 0 output buffers swapped out
>      0 carrier transitions
>  DSU mode 0, bandwidth 44210, real bandwidth 44210, scramble 0
> 
> 
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of 
> Richard Danu
> Sent: Saturday, May 08, 2004 3:42 PM
> To: ccielab@groupstudy.com
> Subject: DS-3 Issue
> 
> 
> Hi,
> 
> I just wanted to ask and see if anyone has experienced an "input 
> error" problem on a 7200 VXR with a (Serial DS-3) card. Apparently, 
> when I perform an extended packet "ping" with a 1500 datagram size, I 
> get intermittent dropped/failed icmp packets. Evidently, the local 
> DS-3 Card is experiencing input errors.
> 
> If I perform an extended ping with a datagram size of 50, all of the 
> requests reply 100%.
> 
> I am inclined to belive this might be a bad card or some issues with 
> input buffer memory. If any of you have any thoughts or have 
> expeienced this issue, any feedback is appreciated.
> 
> Thanks,
> Richard Danu
> 
> HQ-ACCESS01#sh int s2/0
> Serial2/0 is up, line protocol is up
>   Hardware is M1T-T3 pa
>   Internet address is 10.110.30.1/30
>   MTU 1500 bytes, BW 44210 Kbit, DLY 200 usec,
>      reliability 247/255, txload 7/255, rxload 34/255
>   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 06:06:14
>   Queueing strategy: fifo
>   Output queue 0/40, 0 drops; input queue 0/75, 0 drops
>   5 minute input rate 5954000 bits/sec, 735 packets/sec
>   5 minute output rate 1348000 bits/sec, 578 packets/sec
>      17585814 packets input, 467620769 bytes, 0 no buffer
>      Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
>               0 parity
>      1168366 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 
> 1168366 abort 
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> ^^^^^^
> ^^^^^^^^^^^^^^^^^
>      13859594 packets output, 3898977591 bytes, 0 underruns
>      0 output errors, 0 applique, 0 interface resets
>      0 output buffer failures, 0 output buffers swapped out
>      0 carrier transitions
>    rxLOS inactive, rxLOF inactive, rxAIS inactive
>    txAIS inactive, rxRAI inactive, txRAI inactive
> 
> 
> HQ-ACCESS01#ping
> Protocol [ip]:
> Target IP address: 10.110.71.1
> Repeat count [5]: 200
> Datagram size [100]: 1500
> Timeout in seconds [2]:
> Extended commands [n]:
> Sweep range of sizes [n]:
> Type escape sequence to abort.
> Sending 200, 1500-byte ICMP Echos to 10.110.71.1, timeout is 2 
> seconds: 
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!.!.!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> Success rate is 97 percent (194/200), round-trip min/avg/max = 1/12/1748
ms
> HQ-ACCESS01#
> 
> HQ-ACCESS01#ping
> Protocol [ip]:
> Target IP address: 10.110.71.1
> Repeat count [5]: 200
> Datagram size [100]: 50
> Timeout in seconds [2]:
> Extended commands [n]:
> Sweep range of sizes [n]:
> Type escape sequence to abort.
> Sending 200, 50-byte ICMP Echos to 10.110.71.1, timeout is 2 seconds: 
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> Success rate is 100 percent (200/200), round-trip min/avg/max = 1/2/8 
> ms
> 
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