Cisco 10000 Series Configuration Manual page 118

Layer 2 Overhead Accounting
Command
Step 7
policy-map policy-map-name
Example:
Router(config-pmap)# policy-map parent
Step 8
class class-default
Example:
Router(config-pmap)# class class-default
[
Step 9
shape average] mean-rate
[
excess-burst-size
user-defined offset} aal5 subscriber-encap]
Example:
Router(config-pmap-c)# shape average 8000
account dot1q aal5 snap-pppoa
Cisco 10000 Series Router Access Network Control Protocol Configuration Guide
7-6
[ ]
burst-size
] [
account {qinq | dot1q |
Purpose
Creates or modifies the top-level parent policy.
Note This is the default QoS policy that the router uses
for traffic that does not match the traffic classes
specified in the child policies.
policy-map-name is the name of the parent policy map. The
name can be a maximum of 40 alphanumeric characters.
Configures or modifies the parent class-default class.
You can configure only the class-default class in a
Note
parent policy. Do not configure any other traffic
class.
Shapes traffic to the indicated bit rate and enables ATM
overhead accounting.
(Optional) average is the committed burst (Bc) that
specifies the maximum number of bits sent out in each
interval. This option is only supported on the PRE3.
mean-rate is also called committed information rate (CIR).
Indicates the bit rate used to shape the traffic, in bits per
second. When this command is used with backward explicit
congestion notification (BECN) approximation, the bit rate
is the upper bound of the range of bit rates that are
permitted.
(Optional) burst-size is the number of bits in a measurement
interval (Bc).
(Optional) excess-burst-size is the acceptable number of
bits permitted to go over the Bc.
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.
user-defined indicates that the router is to use the specified
offset size when calculating ATM overhead.
offset specifies the offset size the router is to use when
calculating ATM overhead. Valid values are from –48 to 48
bytes.
Note The router configures the offset size unless you
specify the user-defined offset option.
aal5 is the ATM Adaptation Layer 5 that supports
connection-oriented variable bit rate (VBR) services.
Chapter 7 Traffic Accounting
OL-14660-03