ADTRAN AOS Version R10.1.0 Command Reference Manual page 2362

Command Reference Guide
ip pim-sparse dr-priority <value>
Use the ip pim-sparse dr-priority command to specify the priority for the designated router (DR). This
command modifies the router's priority in the DR election process. Use the no form of this command to
return to the default value.
Syntax Description
<value>
Default Values
By default, the priority of all protocol-independent multicast (PIM) interfaces is 1.
Command History
Release 11.1
Functional Notes
Interfaces advertise their configured priority values in the hello messages transmitted on the interface.
Routers use the priority values to determine the appropriate DR. The router on the network segment with
the highest priority is selected as the DR. If a hello message is received on the interface from a router on
the network segment and it does not contain a priority, the entire network segment defaults to DR selection
based on IP addresses instead of priority. In this instance, the DR is selected as the router on the network
segment that has the highest IP address. AOS will always include a priority in all transmitted hello
messages. If no priority is specifically designated by the user, the priority is set as the default of 1.
Usage Examples
The following example specifies a priority of 100 on the high level data link control (HDLC) 1 interface:
(config)#interface hdlc 1
(config-hdlc 1)#ip pim-sparse dr-priority 5
60000CRG0-35E
Specifies the priority of this interface (to be used when determining the DR).
Valid range is 1 to 4294967295.
Command was introduced.
Copyright © 2012 ADTRAN, Inc.
HDLC Interface Command Set
2362