18-26
Cisco 10000 Series Router Quality of Service Configuration Guide
OL-7433-09
Chapter 18 Regulating and Shaping Subscriber Traffic
Shaping and Queuing Per-Session Traffic on LNS
Step 3
Router(config-pmap-c)#
bandwidth
{
bandwidth-kbps
|
percent
percentage
|
remaining percent
percentage
}
account
{{{
qinq
|
dot1q
}
{
aal5
|
aal3
}
{
subscriber-encap
}}
|
{
user-defined
offset
[
atm
]}}
Enables class-based fair queuing.
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.
percent
percentage
specifies or modifies the minimum
percentage of the link bandwidth allocated for a class belonging
to a policy map. Valid values are from 1 to 99.
remaining percent
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. For more
information, see the
“ATM Overhead Accounting” section on
page 10-2
.
qinq
specifies queue-in-queue encapsulation as the broadband
aggregation system-DSLAM encapsulation type.
dot1q
specifies IEEE 802.1Q VLAN encapsulation as the
broadband aggregation system-DSLAM encapsulation type.
aal5
specifies the ATM Adaptation Layer 5 that supports
connection-oriented variable bit rate (VBR) services. You must
specify either
aal5
or
aal3
.
aal3
specifies the ATM Adaptation Layer 5 that supports both
connectionless and connection-oriented links. You must specify
either
aal3
or
aal5
.
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
.
Step 3
(cont.)
Router(config-pmap-c)#
bandwidth
{
bandwidth-kbps
|
percent
percentage
|
remaining percent
percentage
}
account
{{{
qinq
|
dot1q
}
{
aal5
|
aal3
}
{
subscriber-encap
}}
|
{
user-defined
offset
[
atm
]}}
user-defined
indicates that the router is to use the
offset
you
specify when calculating ATM overhead.
offset
specifies the offset size the router is to use when calculating
ATM overhead. Valid values are from -63 to 63 bytes.
Note
The router configures the offset size if you do not specify
the
offset
option.
atm
applies 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 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 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.
Note
You can configure only the class-default class in a parent
policy. Do not configure any other traffic class.
Command
Purpose
