As a good friend of mine that works at a local ISP has kindly pointed out -
the load is only calculated on the outgoing interface.
i.e. our int : 36/255*512=+-74kb=5 minute output rate 74000 bits/sec, 55
packets/sec
their int: 232/255*512=+-467kb=30 second output rate 467000 bits/sec, 63
packets/sec
My thanks again Johnny Bravo {;-)>
-----Original Message-----
From: Creighton Bill-BCREIGH1 [mailto:[EMAIL PROTECTED]]
Sent: 11 October 2002 10:52
To: [EMAIL PROTECTED]
Subject: RE: Need help with link utilisation [7:55347]
Maybe a dumb observation, but:
Why are input errors and CRC's so dramatically higher on the ISP side,
wouldn't the constant CRC retransmit requests increase the utilization?
Excessive line noise or transmission probs?
-----Original Message-----
From: John Botha (Mnet) [mailto:[EMAIL PROTECTED]]
Sent: Friday, October 11, 2002 3:20 AM
To: [EMAIL PROTECTED]
Subject: RE: Need help with link utilisation [7:55347]
The following sh int from both sides:
Our side:
MNET4500>sh int s1
Serial1 is up, line protocol is up
Hardware is HD64570
Description: 512Kb Internet SOLUTION CCT# 64-63487-11
Internet address is 196.6.242.90/30
MTU 1500 bytes, BW 512 Kbit, DLY 20000 usec, rely 255/255, load 36/255
Encapsulation HDLC, 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 1w0d
Input queue: 0/75/0 (size/max/drops); Total output drops: 1720
Queueing strategy: weighted fair
Output queue: 0/1000/64/1707 (size/max total/threshold/drops)
Conversations 0/96/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
5 minute input rate 470000 bits/sec, 59 packets/sec
5 minute output rate 74000 bits/sec, 55 packets/sec
20649049 packets input, 2472568997 bytes, 0 no buffer
Received 60233 broadcasts, 0 runts, 0 giants, 0 throttles
96 input errors, 95 CRC, 44 frame, 0 overrun, 0 ignored, 12 abort
18034063 packets output, 3701447186 bytes, 0 underruns
0 output errors, 0 collisions, 66 interface resets
0 output buffer failures, 0 output buffers swapped out
8 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
Theirs:
Serial4/4 is up, line protocol is up
Hardware is M8T-X.21
Description: mnet | B1:TT4:L | 64-63487-11
Internet address is 196.6.242.89/30
MTU 1500 bytes, BW 512 Kbit, DLY 20000 usec, rely 255/255, load 232/255
Encapsulation HDLC, crc 16, loopback not set
Keepalive set (10 sec)
Last input 00:00:05, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0 (size/max/drops); Total output drops: 1
Queueing strategy: weighted fair
Output queue: 0/1000/64/1 (size/max total/threshold/drops)
Conversations 0/32/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
30 second input rate 78000 bits/sec, 58 packets/sec
30 second output rate 467000 bits/sec, 63 packets/sec
16910473 packets input, 3203937235 bytes, 0 no buffer
Received 0 broadcasts, 177 runts, 7 giants, 0 throttles
11225 input errors, 11081 CRC, 0 frame, 0 overrun, 0 ignored, 144 abort
19484732 packets output, 1636048060 bytes, 0 underruns
0 output errors, 0 collisions, 6 interface resets
0 output buffer failures, 0 output buffers swapped out
7 carrier transitions DCD=up DSR=up DTR=up RTS=up CTS=up
--More--
Regards,
John Botha
E-mail: [EMAIL PROTECTED]
-----Original Message-----
From: Magondo, Michael [mailto:[EMAIL PROTECTED]]
Sent: 11 October 2002 09:48
To: [EMAIL PROTECTED]
Subject: RE: Need help with link utilisation [7:55347]
John
Are you sure both interfaces have the same bandwidth configured?
Michael
-----Original Message-----
From: John Botha (Mnet) [mailto:[EMAIL PROTECTED]]
Sent: 11 October 2002 09:04 AM
To: [EMAIL PROTECTED]
Subject: Need help with link utilisation [7:55347]
Hi group
I have a problem that is currently scrambling my noodle. Our link to our ISP
shows up as under utilized from a show interface command, most often sitting
at less than 100/255. I questioned the slow response during working hours
with one of their engineers, and his interface to us is showing at running
at greater than 200/255 at the same time that my receiving interface is
showing less than 100/255. Surely transmitter and receiver interfaces should
show the same load?
Any help and/or ideas would be appreciated.
Regards,
John
MCSE, CCNA,CCNP,CCDA,CCDP
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=55361&t=55347
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