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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