PIM Suspended During Unified ISSU

You can minimize PIM traffic loss during the in-service software upgrade by issuing the ip pim dr-priority command to set a priority so that PIM neighbors do not forward traffic through the upgrading router. By default, a PIM interface has a priority of one. If you set the priority to one, the lowest possible priority, then the upgrading router is not selected to be a designated router in the PIM network if an interface on another router in that network has a higher priority.

ip pim dr-priority

• Use to set a priority by which a router is likely to be selected as the designated router.
• Example

  host1(config-if)#ip pim dr-priority 1

• Use the no version to restore the default value, 1.
• See ip pim dr-priority.

Copyright © 2008, Juniper Networks, Inc. All rights reserved. Trademark Notice.