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rewrite-rule

rewrite-rule—Configure a rewrite rule to overwrite the DSCP field of a packet's outer IP header, or apply a rewrite rule on an interface (on vEdge routers only). A rewrite rule is applied to packets being transmitted out the interface.

You can apply rewrite rules to both unicast and multicast traffic.

vManage Feature Template

For vEdge routers only:

Configuration ► Policies ► Localized Policy
Configuration ► Templates ► VPN Interface Cellular (for vEdge cellular wireless routers only)
Configuration ► Templates ► VPN Interface Ethernet
Configuration ► Templates ► VPN Interface GRE
Configuration ► Templates ► VPN Interface PPP
Configuration ► Templates ► VPN Interface PPP Ethernet

Command Hierarchy

Create a Rewrite Rule

policy
  rewrite-rule rule-name
    class class-name loss-priority dscp dscp-value

Apply a Rewrite Rule on an Interface

vpn vpn-id
  interface interface-name
    rewrite-rule rule-name

Options

Forwarding Class, Loss Priority, and DSCP Value
class class-name loss-priority dscp dscp-value
Name of a forwarding class. For each forwarding class, define a packet loss priority (PLP; either high or low) and a DSCP value (from 0 through 63).
Rewrite Rule Name
rule-name
Name of the QoS map. It can be a text string from 1 through 32 characters long. When you apply a rewrite rule to an interface, the name must match that which you specified when you created the rule with the policy rewrite-rule configuration command.

Example

Create a rewrite rule, and apply it to an interface:

vEdge(config)# show config
rewrite-rule transport
 class af1 low dscp 3
 class af1 high dscp 4
 class af2 low dscp 5
 class af2 high dscp 6
 class af3 low dscp 7
 class af3 high dscp 8
 class be low dscp 1
 class be high dscp 2
 !
!
vpn 0
interface ge0/0
  ip-address 10.1.15.15/24
  tunnel-interface
  no shutdown
  rewrite-rule transport
 !
!

Release Information

Command introduced in Viptela Software Release 14.1.​
In Release 16.3, add support for multicast traffic.

Additional Information

See the Configuring Localized Data Policy, Forwarding and QoS Overview, and Forwarding and QoS Configuration Examples articles for your software release.

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