Deploying Diffserv; Creating Class-Maps/Diffserv Classes - Dell Force10 S2410-01-10GE-24P Configuration Manual

Deploying DiffServ

The four basic steps necessary to deploy DiffServ are:
1. Create class-maps. (See
A class-map is used to differentiate between types of traffic based on a packet's match to defined rules in the
class-map. For information on using a class-map in configuration scripting, see
page 31.
2. Create a policy-map. (See
A policy-map references a class-map and defines the actions to be taken for traffic in a referenced class.
3. Apply the policy to interfaces. (See
Apply the policy to the interfaces in an ingress or egress capacity.
4. Enable DiffServ globally. (See
The following command sequence is annotated to show the four stages described above. The example
configures a policy of 1MByte rate limiting, with a 128K burst, sets a CoS, and assigns it to a port:
Figure 12-136. DiffServ Example: Configuring Rate Limiting on a Port
class-map match-all match_all
match any
exit
!Completed Step 1!
policy-map rate_limit in
class match_all
police-simple 1024 128 conform-action set-cos-transmit 7 violate-action drop
exit
!Completed Step 2!
interface
service-policy in rate_limit
no shutdown
exit
!Completed Step 3!
diffserv
!Completed Step 4!
Using "class-map" policy options, you can configure more granular matching based on Layer 2 or Layer 3
headers. Input rate limiting is configured with the
shaping.

Creating Class-maps/DiffServ Classes

The first step in deploying DiffServ is to create a DiffServ class. From the Global Config mode, use the
class-map match-all
The
match-all
considered a member of the class.
180 | Quality of Service
Creating Class-maps/DiffServ Classes on page
Creating a Policy-Map on page
Enabling Differentiated Services on page
1/0/7
command.
classname
class type indicates that all of the individual match conditions must be true for a packet to be
182.)
Applying Policies on page
command. Use
police-simple
180.)
Using Configuration Scripts on
183.)
184.)
for egress rate
traffic-shape