From: Michael Yu (michael_yu@xxxxxxxxxxxxxxxx)
Date: Fri Dec 22 2000 - 00:23:00 GMT-3
If queue size is less than mtu or packet size, router will keep processing that
packet untill the end of it. So if u change the default queue size from 1500 t
o 1700, assume all packet is around 1500, like ftp data and keep all other queu
e the default size. The result can be surprising. The non-default queue may use
up twice bandwidth comparing to other queues, coz router will process 2 packet
s each time but only one packet for others.
Also, I wanted to know if anyone knew what should be the total queue size and w
hat happens if it is less than the mtu for the given interface and a packet of
the mtu size will need to be queued.
-----Original Message-----
From: Ron Brewer [mailto:kbs88kbs@yahoo.com]
Sent: Thursday, December 21, 2000 8:21 AM
To: ccielab@groupstudy.com
Subject: Custom queuing question
When you see a question on a practice lab state something like, Make ftp, telne
t, snmp, and everything else share 25% of the bandwidth each, is it ok to just
go with the default byte count of 1500 and let each queue use that amount? Or
should you take into consideration the bandwidth of the line, for example 64K,
and divide by 8 to get 8000 bytes per second to get a queue length of 2000 byte
s per queue (based on 1 second intervals). Or do you go further and base the in
tervals on 125 msec and divide the 8000 bytes by 8 to get 1000 bytes which woul
d leave you with a queue length of 250 bytes per queue.
Just curious as to how detailed custom queuing should be with a statement like
the one above.
Thanks,
Ron
Do You Yahoo!?
Yahoo! Shopping - Thousands of Stores. Millions of Products.
http://shopping.yahoo.com/
To unsubscribe from the CCIELAB list, send a message to
majordomo@groupstudy.com with the body containing:
unsubscribe ccielab
To unsubscribe from the CCIELAB list, send a message to
majordomo@groupstudy.com with the body containing:
unsubscribe ccielab
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 08:26:09 GMT-3