Cisco 10000 Series User Manual

16-44
Cisco 10000 Series Router Quality of Service Configuration Guide
OL-7433-09
Chapter 16 Fragmenting and Interleaving Real-Time and Nonreal-Time Packets
FRF.12 Fragmentation
Configuring PVC-Based FRF.12 Fragmentation
To configure PVC-based FRF.12 Fragmentation, perform the following configuration tasks:
• Enabling FRF.12 Fragmentation on a Map Class, page 16-44
• Attaching the Map Class, page 16-45
• Configuring a Hierarchical Policy and PVC-Based FRF.12 Fragmentation, page 16-52
Enabling FRF.12 Fragmentation on a Map Class
To enable FRF.12 Fragmentation on a Frame Relay map class, enter the following commands beginning
in global configuration mode:
Command Purpose
Step 1
Router(config)# map-class frame-relay
map-class-name
Creates or modifies a map class and enters map-class
configuration mode.
map-class-name identifies the map class.
Step 2
Router(config-map-c)# frame-relay fragment
fragment_size
Enables the fragmentation of Frame Relay frames on a Frame
Relay map class.
fragment_size specifies the number of payload bytes from the
original Frame Relay frame that go into each fragment. This
number excludes the Frame Relay header of the original frame.
Valid values are from 16 to 1600 bytes. The default is 53 bytes.
Note All of the fragments of a Frame Relay frame, except the
last, have a payload size that is equal to the fragment_size.
The last fragment has a payload that is less than or equal
to the fragment_size.
Step 3
Router(config-map-c)# service-policy
{input | output} policy-map-name
Applies the service policy you specify to the map class.
input indicates to apply the service policy to the traffic on the
inbound interface.
output indicates to apply the service policy to the traffic on the
outbound interface.
Note For QoS policies containing the bandwidth, priority,
random-detect, queue-limit, and shape commands, you
must specify the output keyword. The router ignores
these commands when you use them with the input
keyword.
policy-map-name is the name of the policy map.
Step 4
Router(config-map-c)# no frame-relay
adaptive-shaping
Disables Frame Relay adaptive traffic shaping.

Cisco 10000 Series Specifications

General

Brand	Cisco
Model	10000 Series
Category	Network Router
Language	English