Solved

Throughput very low behind pix

Posted on 2006-11-05
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Last Modified: 2010-04-17
After adding a pix, my throughput dropped a lot.

Connected direclty to the internet, I average 1700kbps
Behind a 2600, it is about the same - 1600kbps
However, when I am behind a pix and the 2600, I can only get around 400kbps (if I'm lucky!)


Anything I can do to speed up the throughput? It seems very low to me

Thanks
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Question by:dissolved
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5 Comments
 
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Accepted Solution

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lrmoore earned 500 total points
ID: 17877033
Check the duplex settings between the 2600 and the PIX. Look for error counters on both the 2600 interface and the PIX interface.
Which model PIX?
I get about 3.1Mb or better though my 506 and cable modem.
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Author Comment

by:dissolved
ID: 17877298
It is a pix 501. It is full duplex, as is the 2600 interface

There are errors on the 2600 interface, which connects to the pix

5 minute output rate 45000 bits/sec, 2 packets/sec
   171512 packets input, 22334545 bytes, 0 no buffer
   Received 83 broadcasts, 0 runts, 0 giants, 0 throttles
   1290 input errors, 1290 CRC, 643 frame, 0 overrun, 0 ignored
   0 input packets with dribble condition detected
   259135 packets output, 222421334 bytes, 0 underruns
   23737 output errors, 0 collisions, 1 interface resets
   0 babbles, 0 late collision, 0 deferred
   23737 lost carrier, 0 no carrier
   0 output buffer failures, 0 output buffers swapped out
ternal_router#
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LVL 79

Expert Comment

by:lrmoore
ID: 17877317
How do you have these two devices connected? With a crossover cable, or through a switch?
these lost carrier error counts are not good..
I'd suggest putting a small switch in between the PIX outside and the 2600 and see if that helps.
Else it could just be a bad cable..
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Author Comment

by:dissolved
ID: 17878341
alright, problem was that the pix's interface was at 100. While my 2600, only supports 10. I switched the pix to 10full. I checked the input errors on the routers e1 interface. There are no more. I think that was the problem. They are connected via crossover. I do plan to put a switch in between them so I can have dmz devices.


thanks for the help, that easy button is working great for you ;-)
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LVL 79

Expert Comment

by:lrmoore
ID: 17878373
<8-}
- Cheers!
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