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Ifconfig  - Txqueuelen

Posted on 2003-03-14
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Hi,

I would like to know what kernel variables are set when i change the txqueuelen via command  "ifconfig eth0 txqueuelen 1000". Also i need some more information on how txqueuelen works internally. Where it is defined?. Whether in /proc file or some header fils?


Thanks/Sanjay


eth0      Link encap:Ethernet  HWaddr 00:10:DC:33:8B:3B  
          inet addr:140.221.9.41  Bcast:140.221.11.255  Mask:255.255.252.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:17385083 errors:0 dropped:0 overruns:0 frame:0
          TX packets:12261014 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:50
          RX bytes:1306814149 (1246.2 Mb)  TX bytes:1024349560 (976.8 Mb)
          Interrupt:11
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Question by:hegdesan
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kiranghag earned 200 total points
ID: 8141034
this is something i found regarding ur qustion from google.



tx_queue_len provides default values for the queue size in
all FIFO qdiscs, and an in unconfigured GRED (which acts
just as a pfifo)),

In HTB, it sets the limit of the queue of class qdisc:0,
so it affects traffic that doesn't get shaped.

In any case, any additional queuing after traffic control
is at the discretion of the network interface driver, and
not affected by tx_queue_len.

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by:kiranghag
ID: 8141039
i guess txqueuelen is specific to the driver of the network card.
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by:CleanupPing
ID: 9077666
hegdesan:
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