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Author data flow thru a serial port
supergoku0

2002-01-28, 2:08 am

Dear all,

Say router is connected thru its serail port to a 128K leased line, a "show int s0" command may display the followings(part of output):
...
5 minute input rate 10000 bits/sec,0 packets/sec
5 minute output rate 2000 bits/sec,0 packets/sec
....

For a leased line =128K am I right in saying the max. rate should reach "256K" (128K for input and 128k for output) when fully loaded?
Also how is the "no. of bits/sec" related to "the packets/sec" as shown in the output? Their relation does not seem to be always proportionate...

TIA,
Goku
Yankee

2002-01-28, 4:00 am

Yes your serial connection is "full-duplex", not in the ethernet sense, but what the call a 128K circuit is 128K each way.

Yankee
MadChef

2002-01-28, 5:13 am

quote:
Originally posted by supergoku0

Also how is the "no. of bits/sec" related to "the packets/sec" as shown in the output? Their relation does not seem to be always proportionate...



It would be if all your packets were the same size, but they probably aren't. Larger packets yield fewer packets per second for the same bandwidth. The converse applies as well.

MadChef
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