From: Ken.Farrington@barclayscapital.com
Date: Wed Oct 22 2003 - 08:23:37 GMT-3
fantasic. so if I were to get an excecise with the percentages above the
75%, even thou the policy map will accpt the command, just the fact that
they have given me an excersise totals more than the 75%, i must use the
max-bandwidth command to 100, of what ever the total in the excercise is?
Personally, I would set to the percentage maximum they have specified?
correct?
thx soo much for you help !!!
-----Original Message-----
From: David Bartlett [mailto:David.Bartlett@reuters.com]
Sent: 22 October 2003 12:00
To: Ken.Farrington@barclayscapital.com; ccielab@groupstudy.com
Subject: RE: CBWFQ - Reseving BW for Voice
Ken
Yes, you should use LLQ's priority queue for voice traffic to ensure
minimal delay variations. For this exercise you must set
max-reserved-bandwidth to 100% as you suggest as the default max is 75%.
If no class-default is configured, then traffic not matched by your ACLs
will not be dropped but will use the remaining 10% bw and be given best
effort treatment.
Another important point to understand with LLQ is that using the
bandwidth statement specifies the *minimum* bw that the class can use
during periods of congestion. However, on the priority queue the
bandwidth specifies the *maximum* bw that the queue can use during
congestion periods. The priority queue is policied and traffic
exceeding the configured bw will be dropped.
Hope this helps,
David Bartlett
-----Original Message-----
From: Ken.Farrington@barclayscapital.com
[mailto:Ken.Farrington@barclayscapital.com]
Sent: 22 October 2003 11:47
To: ccielab@groupstudy.com
Subject: CBWFQ - Reseving BW for Voice
All,
Good Morning,
Please can I confirm a couple of points.
On the excersise below, Should I use for voice traffic, the priority
keyword as this I beleive invokes LLQ or should i just use bandwidth (i
think this may cause delay in the queing of voice data and is not a good
idea?)
What happens if I do not specify max-bandwidth on the interface to 100
as my %s total 90% - Is this 90% of the 75% that is used by default?
If I dont specify a class-default, does all other traffic get denied, or
is just quese in the remain 25 percent reserved for other traffic?
Please if someone could help me on these points, it would be fantasic.
Many thx,
Ken
I have an excercise to do the folloiwng
Users on a that share a serial line, should have the following
restrictions
:-
35% FTP Traffic
25% Telnet Traffic
30% Voice Traffic
so, using CBWFQ config as below
map-class voice
match access-group 100
map-class telnet
match access-group 110
map-class ftp
match access-group 120
policy-map traffic
class voice
priority 30
class telnet
bandwidth 25
class ftp
bandwidth 35
acess-list ............
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