Implementing Pbr According To Payload Size - HP 7102dl - ProCurve Secure Router Configuration Manual

AF Class
AF33
AF4—most bandwidth
AF41
AF42
AF43
You can also select traffic marked for expedited forwarding (DSCP 46), a PHB
that is guaranteed low-latency and a set amount of bandwidth:
Syntax: match ip dscp ef
To select a specific DSCP defined within your network, enter this command:
Syntax: match ip dscp <value>
Enter a value between 0 and 63.
You can match the entry to more than one ToS value. Any packet that matches
one of these values will be selected.

Implementing PBR According to Payload Size

One application for PBR is selecting different routes for interactive and for
bulk traffic. For example, you could allow bulk traffic associated with FTP or
video streaming applications, which are typically active only temporarily, to
use a specific connection reserved for such applications. You could restrict
the routine, interactive traffic to a cost-effective connection such as a Frame
Relay link.
One way to distinguish bulk traffic from interactive traffic is by packet size.
Packets associated with interactive traffic tend to be small. To set the size for
packets selected for the route map, enter this command from the route map
configuration mode context:
Syntax: match length <minimum length> <maximum length>
Enter lengths in bytes. The length applies to the Level 3 length—that is, a
frame's payload.
For example, you could force the router to forward IP packets between 10 and
500 bytes out a specific interface. To select the packets, you would enter:
ProCurve(config-route-map)# match length 10 500
IP Routing—Configuring RIP, OSPF, BGP, and PBR
Drop Precedence DSCP
high 011110
low 100010
medium 100100
high 100110
Configuring Policy-Based Routing
DiffServ Value
30
34
36
38
15-137