Looking at the LOAD value (first line), your Serial line is at 88%
utilization (assuming the bandwidth parameter is correct and this is a 768K
line). If the processor on the router isn't overloaded, then I would turn
on TCP header compression and Stac software compression. Additionally, you
can increase the size of the ouput queue by using the interface config mode
command:
HOLD-QUEUE xx OUT
Where xx is the number of buffers.
Additionally, you can look at removing unneccessary traffic from the link,
(Routing Protocol overhead, Broadcasts, SAP Announcements).
If the slowness is causing unacceptable business delays, you might consider
a Custom queueing scheme, or Priority lists for important traffic.
Lastly, There is always the solution of purchasing more bandwidth.
If you need more help, Email me again.
----Original Message Follows----
From: "Gressel, Shawn M." <[EMAIL PROTECTED]>
Reply-To: "Gressel, Shawn M." <[EMAIL PROTECTED]>
To: "'[EMAIL PROTECTED]'" <[EMAIL PROTECTED]>
Subject: output queue drops
Date: Thu, 21 Sep 2000 13:45:48 -0400
Below is a serial interface on a 7513 we are seeing output queue drops
I cleared the counters about 5 minutes previous to this output
any ideas on resolving this problem?
MTU 1500 bytes, BW 768 Kbit, DLY 20000 usec, rely 255/255, load 224/255
Encapsulation HDLC, loopback not set, keepalive set (10 sec)
Last input 00:00:00, output 00:00:01, output hang never
Last clearing of "show interface" counters 00:17:33
Queueing strategy: fifo
Output queue 0/40, 3820 drops; input queue 0/75, 0 drops
5 minute input rate 497000 bits/sec, 374 packets/sec
5 minute output rate 676000 bits/sec, 169 packets/sec
391198 packets input, 65520174 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
165281 packets output, 87180992 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
RTS up, CTS down, DTR up, DCD up, DSR up
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