4000 Router Series Layer 3 - IP Services Command Reference

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Field Description

Output interface

Output interface type and number.

If no interface is involved in fast forwarding, this field displays N/A.

If the output interface does not exist, this field displays a hyphen (-).

Related commands

• ipv6 fast-forwarding

• reset ipv6 fast-forwarding cache

ipv6 fast-forwarding

Use ipv6 fast-forwarding to enable IPv6 fast forwarding.

Use undo ipv6 fast-forwarding to disable IPv6 fast forwarding and remove all IPv6 fast forwarding

entries.

Syntax

ipv6 fast-forwarding

undo ipv6 fast-forwarding

Default

IPv6 fast forwarding is enabled.

Views

System view

Predefined user roles

network-admin

Usage guidelines

Fast forwarding reduces route lookup time and improves forwarding efficiency. It creates an entry for a

data flow after the first packet of the flow is forwarded through the routing table and uses the entry to

forward subsequent packets of the flow.

Examples

# Enable IPv6 fast forwarding.

<Sysname> system-view

[Sysname] ipv6 fast-forwarding

Related commands

• display ipv6 fast-forwarding cache

• reset ipv6 fast-forwarding cache

ipv6 fast-forwarding aging-time

Use ipv6 fast-forwarding aging-time to set the aging time of IPv6 fast forwarding entries.

Use undo ipv6 fast-forwarding aging-time to restore the default.