10-8
Cisco 10000 Series Router Quality of Service Configuration Guide
OL-7433-09
Chapter 10 Overhead Accounting
Configuring Overhead Accounting in a Hierarchical Policy
Step 2
Router(config-pmap)#
class
class-map-name
Assigns the traffic class you specify to the policy map.
Enters policy-map class configuration mode.
class-map-name
is the name of a previously configured
class map.
Step 3
Router(config-pmap-c)#
bandwidth
{
bandwidth-kbps
|
percent
percentage
|
remaining percent
percentage
} [
account
{{
qinq
|
dot1q
} {
aal5
} {
subscriber-encap
}} |
{
user-defined
offset
[
atm
]}]
Enables class-based fair queuing and overhead accounting.
bandwidth-kbps
specifies or modifies the minimum
bandwidth allocated for a class belonging to a policy map.
Valid values are from 8 to 2,488,320, which represents from
1 to 99 percent of the link bandwidth.
percentage
specifies or modifies the maximum percentage
of the link bandwidth allocated for a class belonging to a
policy map. Valid values are from 1 to 99.
remaining
percentage
specifies or modifies the minimum
percentage of unused link bandwidth allocated for a class
belonging to a policy map. Valid values are from 1 to 99.
account
enables ATM overhead accounting.
qinq
specifies queue-in-queue encapsulation as the
BRAS-DSLAM encapsulation type.
dot1q
specifies IEEE 802.1Q VLAN encapsulation as the
BRAS-DSLAM encapsulation type.
aal5
specifies the ATM Adaptation Layer 5 that supports
connection-oriented variable bit rate (VBR) services.
subscriber-encap
specifies the encapsulation type at the
subscriber line. For more information, see the
“Overhead
Accounting and Hierarchical Policies” section on
page 10-6
.
user-defined
indicates that the router is to use the offset
value
you specify when calculating ATM overhead.
offset
specifies the number of bytes the router is to use when
calculating overhead. Valid values are from -63 to 63 bytes.
atm
applies the ATM cell tax in the ATM overhead
calculation.
Note
Configuring both the
offset
and
atm
options adjusts
the packet size to the offset size and then adds the
ATM cell tax.
Step 4
Router(config-pmap-c)#
exit
Exits policy-map class configuration mode.
Step 5
Router(config-pmap)#
policy-map
policy-map-name
Creates or modifies the top-level parent policy.
policy-map-name
is the name of the parent policy map. The
name can be a maximum of 40 alphanumeric characters.
Step 6
Router(config-pmap)#
class
class-default
Configures or modifies the parent class-default class.
Command
Purpose
