From: Roger (rpf@bluemail.ch)
Date: Wed Apr 23 2008 - 12:09:59 ART
Hi Andrew,
Thanks for the explanation. A colleague told me today the solution as well,
as soon as I reserve only 74% it works. It seems that on some plattforms it
is possible to reserve 75% and on other only 74%.
About the Catalyst class-default; it would be very interesting what the
outcome of your case will be. Let me know once you have more infos!
I'm asking myself if this problem also exist on other plattforms....well,
once I have some time, I'll check it on a Cat4510 or Cat7609...
Thanks
Roger
-----Urspr|ngliche Nachricht-----
Von: Andrew Larkins [mailto:Andrew.Larkins@btgroup.co.za]
Gesendet: Mittwoch, 23. April 2008 16:47
An: Roger; ccielab@groupstudy.com
Betreff: RE: Two QoS question
Just remember that there is 25% for the default class and routing
functions etc
Use the show interface before the policy is applied to see the available
BW for QoS - about halfway down - default is 75% only
I would increase this by putting the max-reserved 80 on the interface
Sounds more like this is a cosmetic issue since the logic is correct
Regarding your 3550 switch - I have a TAC case opened for a 3560G which
is not tagging packets at all or even matching on the default class - I
believe this is related to the software. Even a hardware analyser here
proves that the packets are not getting marked
Andrew
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Roger
Sent: 22 April 2008 21:48 PM
To: ccielab@groupstudy.com
Subject: Two QoS question
Hi Group,
I have two QoS question:
1) On a 2821 with IOS124-18 when I try to apply a policy-map out on the
Gigabit Ethernet Interface I always get the following errormessage, even
if
I reserve only a total of 75% (class high 35%, medium 30%, low 10%)
I/f GigabitEthernet0/1 class high requested bandwidth 35%, available
only 5%
It must somehow be box related, because on a 2611XM the same config
works
fine.
-->> Any Ideas?
2) On a C3550 following setup --R1--C3550--R2-- I configure a policer
for
the class default and apply it to a FE Port. Than I ping from R1 to R2,
which should match my class default. I never see matches on the class
default with sh policy-map interface.
Is it not possible to only use the class default? Here my config:
!
policy-map CCIEpolicy
class class-default
police 1000000 187500 exceed-action drop
!
int fa0/4
service-policy input vlan11policy
!
Thanks
Roger
Pass the CCIE in six weeks, Guaranteed!
http://www.certscience.com/CCIE
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