R2511-HP MSR Router Series Layer 3 - IP Services Command Reference(V5)

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CAUTION:
• To enable per-packet load balancin
g
, you must disable fast forwardin
g
in the correspondin
g
direction of
related interfaces.
• The interface on which fast forwarding is enabled stops sending ICMP redirect messages.
• After fast forwarding is enabled on an interface, no IP packet debugging information is displayed for
the interface by using the debugging ip packet command.
• To implement fast forwarding of a data flow, you need to enable fast forwarding in the inbound
direction of the incoming interface and in the outbound direction of the outgoing interface.
• When a routin
g
interface is different from its physical interface on links such as MP links or PPPoE links,
whether fast forwarding is enabled on the physical interface does not affect fast forwarding on the
routing interface.
Examples
# Enable fast forwarding on Ethernet 1/2 in the inbound direction.
<Sysname> system-view
[Sysname] interface ethernet 1/2
[Sysname-Ethernet1/2] ip fast-forwarding inbound
# Disable fast forwarding on Ethernet 1/1 in the inbound and outbound directions.
<Sysname> system-view
[Sysname] interface ethernet 1/1
[Sysname-Ethernet1/1] undo ip fast-forwarding
reset ip fast-forwarding cache
Use reset ip fast-forwarding cache to clear all information in the fast forwarding table.
Syntax
reset ip fast-forwarding cache
Views
User view
Default command level
2: System level
Examples
# Clear information in the fast forwarding table.
<Sysname> reset ip fast-forwarding cache