423
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
.
