R0106-HP MSR Router Series Layer 3 - IP Routing Configuration Guide(V7)

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Relationship between the match mode and clauses on the node
Does a packet match all the
if-match clauses on the
node?
Match mode
In permit mode In deny mode
Yes
• If the node is configured with
apply clauses, IPv6 PBR executes
the apply clauses on the node.
{ If the IPv6 PBR-based
forwarding succeeds, IPv6
PBR does not match the
packet against the next node.
{ If the IPv6 PBR-based
forwarding fails and the
apply continue clause is not
configured, IPv6 PBR does
not match the packet against
the next node.
{ If the IPv6 PBR-based
forwarding fails and the
apply continue clause is
configured, IPv6 PBR
matches the packet against
the next node.
• If the node is configured with no
apply clauses, the packet is
forwarded according to the
routing table.
The packet is forwarded according
to the routing table.
No
IPv6 PBR matches the packet against
the next node.
IPv6 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 an apply clause to the
link status of a tracked object. The tracked object can be a next hop, output interface, default next hop,
or default output interface.
• When the track entry associated with an object changes to Negative, the apply clause is invalid.
• When the track entry changes to Positive or NotReady, the apply clause is valid.
For more information about Track-PBR collaboration, see High Availability Configuration Guide.
IPv6 PBR configuration task list
Tasks at a
g
lance
(Required.) Configuring an IPv6 policy:
• Creating an IPv6 node
• Configuring match criteria for an IPv6 node
• Configuring actions for an IPv6 node