Reference Guide

Version Description
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
8.1.1.0 Introduced on the E-Series ExaScale.
7.8.1.0 Introduced on the C-Series on port-channels and the S-
Series.
Usage
Information
The router with the largest value assigned to an interface becomes the designated
router. If two interfaces contain the same designated router priority value, the
interface with the largest interface IP address becomes the designated router.
ip pim graceful-restart
This feature permits configuration of non-stop forwarding (NSF or graceful restart) capability of a PIM
router to its neighbors.
Syntax
[ipv6] ip pim graceful-restart {helper-only | nsf [restart-time
| stale-entry-time]}
Parameters
ipv6 Enter the keyword ipv6 to enable graceful-restart for the
IPv6 multicast routes.
helper-only Enter the keywords helper-only to configure as a receiver
(helper) only by preserving the PIM status of a graceful restart
PIM neighboring router.
nsf Enter the keyword nsf to configure the non-stop forwarding
capability.
restart-time (OPTIONAL) Enter the keywords restart-time followed by
the number of seconds estimated for the PIM speaker to
restart. The range is 30 to 300 seconds. The default is
180
seconds.
stale-entry-
time
(OPTIONAL) Enter the keywords stale-entry-time
followed by the number of seconds for which entries are
kept alive after restart. The range is 30 to 300 seconds. The
default is 60 seconds.
Defaults as above
Command
Modes
CONFIGURATION
PIM-Sparse Mode (PIM-SM)
1595