BigIron RX Series Configuration Guide 613
53-1002253-01
Route selection precedence for multicast
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To specify a non-default route from the mRTM, then a non-default route from the uRTM, then a
default route from the mRTM, and then a default route from the uRTM, enter commands such as
the following.
BigIron RX(config)# router pim
BigIron RX(config-pim-router)# route-precedence mc-non-default uc-non-default
mcdefault uc-default
The none option may be used to fill up the precedence table in order to ignore certain types of
routes. To use the unicast default route for multicast, enter commands such as the following.
BigIron RX(config)# router pim
BigIron RX(config-pim-router)#route-precedence mc-non-default mc-default
uc-non-default none
Syntax: [no] route-precedence {mc-non-default mc-default uc-non-default uc-default none}
Default value: route-precedence mc-non-default mc-default uc-non-default uc-default
Use the mc-non-default parameter to specify a multicast non-default route.
Use the mc-default parameter to specify a multicast default route.
Use the uc-non-default parameter to specify a unicast non-default route.
Use the uc-default parameter to specify a unicast default route.
Use the none parameter to ignore certain types of routes.
The no form of this command removes the configuration.
Displaying the route selection
Use the show ip pim sparse command to display the current route selection. The example below
displays the default route precedence selection.
BigIron RX(config)#show ip pim sparse
Global PIM Sparse Mode Settings
Hello interval : 30 Neighbor timeout : 105
Bootstrap Msg interval: 60 Candidate-RP Advertisement interval: 60
Join/Prune interval : 60 SPT Threshold : 1
Inactivity interval : 180 SSM Enabled : No
Hardware Drop Enabled : Yes
Route Selection : mc-non-default mc-default uc-non-default uc-default
---------+----------------+----+---+----------------------+------+-------------+
Interface|Local |Mode|Ver| Designated Router |TTL |Multicast |
|Address | | |Address Port |Thresh|Boundary |
---------+----------------+----+---+----------------------+------+-------------+
v12 100.4.8.2 SM V2 Itself 1 None
v13 100.16.8.2 SM V2 Itself 1 None
v124 124.0.0.1 SM V2 Itself 1 None
v125 125.0.0.1 SM V2 Itself 1 None
v126 126.0.0.1 SM V2 Itself 1 None
v127 127.0.0.1 SM V2 Itself 1 None
l1 1.0.8.1 SM V2 Itself 1 None
This example displays the route precedence selection as multicast non-default, then unicast
non-default, then multicast default, and then unicast default.