Table 48: Terms Configuration Parameters (continued)
Your ActionFunctionField
Click Add and select the protocol from the
list.
To delete a protocol, select it and click
Remove.
Specifies the name of the protocol from which the route was
learned or to which the route is being advertised.
Protocol
Action tab
Select a value from the list.Specifies the action to take if the conditions match.Action
Select a value from the list.Specifies that any action that is intrinsic to the protocol is
overridden. This action is also nonterminating, so that various
policy terms can be evaluated before the policy is terminated.
Default Action
Select a value from the list.Specifies the default control action if a match occurs, and
there are no further terms in the current routing policy.
Next
Select a value from the list.Specifies a priority for prefixes included in an OSPF import
policy. Prefixes learned through OSPF are installed in the
routing table based on the priority assigned to the prefixes.
Priority
Select a value from the list.Specifies the BGP origin attribute.BGP Origin
Enter a value.Affixes an AS number at the beginning of the AS path. The
AS numbers are added after the local AS number has been
added to the path. This action adds an AS number to AS
sequences only, not to AS sets. If the existing AS path begins
with a confederation sequence or set, the affixed AS number
is placed within a confederation sequence. Otherwise, the
affixed AS number is placed with a nonconfederation
sequence.
AS Path Prepend
Select the type and type a value.Extracts the last AS number in the existing AS path and affixes
that AS number to the beginning of the AS path n times, where
n is a number from 1 through 32. The AS number is added
before the local AS number has been added to the path. This
action adds AS numbers to AS sequences only, not to AS sets.
If the existing AS path begins with a confederation sequence
or set, the affixed AS numbers are placed within a
confederation sequence. Otherwise, the affixed AS numbers
are placed within a nonconfederation sequence. This option
is typically used in non-IBGP export policies.
AS Path Expand
Select the check box to enable the option.Specifies that all next-hop addresses in the forwarding table
must be installed and have the forwarding table perform
per-packet load balancing. This policy action allows you to
optimize VPLS traffic flows across multiple paths.
Load Balance Per
Packet
Select the action and type a value.Specifies the tag value. The tag action sets the 32-bit tag field
in OSPF external link-state advertisement (LSA) packets.
Tag
Select the action and type a value.Changes the metric (MED) value by the specified negative or
positive offset. This action is useful only in an external BGP
(EBGP) export policy.
Metric
89Copyright © 2017, Juniper Networks, Inc.
Chapter 7: Routing Policies and Packet Filtering Configuration