R21xx-HP FlexFabric 11900 Layer 3 IP Routing Configuration Guide

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Does a packet match all
the if-match clauses on
the node?
Match mode
permit Deny
Yes.
• If the node is configured with an
apply clause, PBR executes the apply
clause on the node.
• If the node is configured with no
apply clause, the packet is forwarded
according to the routing table.
The packet is forwarded according
to the routing table.
No.
PBR matches the packet against the next
node.
PBR matches the packet against the
next node.
A node that has no if-match clauses matches any packet.
PBR and Track
PBR can work with the Track feature to dynamically adapt the availability status of a node configured
with an apply clause to the link status of a tracked next hop.
When the track entry associated with the node changes to negative because the next hop is detected as
being unavailable, the node cannot be used for forwarding. When the track entry changes to positive or
NotReady because the next hop is detected as being available, the node can be used for forwarding.
For more information about Track-PBR collaboration, see High Availability Configuration Guide.
PBR configuration task list
Tasks at a
g
lance
(Required.) Configuring a policy:
• Creating a node
• Configuring match criteria for a node
• Configuring actions for a node
(Required.) Configuring PBR
Configuring a policy
Creating a node
Ste
p
Command Remarks
1. Enter system view.
system-view
N/A