From: Khalid A. Kaseb (khalid_ameen@rayaintegration.com)
Date: Mon Feb 24 2003 - 06:24:04 GMT-3
All the traffic defined by the class-map will use 75% by default from
the configured B.W. and remaining 25% will be used for routing updates,
clocking, framing..... etc, this is the default behavior, if you want to
change this use the command max-reserve.... , correct me if I am wrong
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Weihan Wu
Sent: Monday, February 24, 2003 6:39 AM
To: weihanwu@yahoo.com; ccielab@groupstudy.com
Cc: discuss-it@lists.netmasterclass.net
Subject: CBWFQ maximum bandwidth allocation
Hi All,
I'm a bit unclear on the following quote from documentation CD. Does it
mean
that my 4 classes can only have bandwidth added up to link bandwidth
(256k in
this case), or should the 4 classes total to 75% of 256k? Or assume the
25%
will go to class-default?
Thanks,
Weihan
(From CCO)
"You can configure class policies for as many classes as are defined on
the
router, up to the maximum of 64. However, the total amount of bandwidth
allocated for all classes included in a policy map must not exceed 75
percent
of the available bandwidth on the interface. The other 25 percent is
used for
control and routing traffic. (To override the 75 percent limitation, use
the
max-reserved bandwidth command.) If not all of the bandwidth is
allocated, the
remaining bandwidth is proportionally allocated among the classes, based
on
their configured bandwidth."
class-map http
match protocol http
class-map icmp
match protocol icmp
class-map dns
match protocol dns
class-map telnet
match protocol telnet
!
policy-map ccie
class http
bandwidth percent 20
class icmp
bandwidth percent 20
class dns
bandwidth percent 20
class telnet
bandwidth percent 40
class class-default
fair-queue
!
interface f0/0
bandwidth 256
service-policy output ccie
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