R0106-HP MSR Router Series IP Multicast Command Reference(V7)

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The source field in an ACL specifies the multicast group range. If you specify a VPN instance in the ACL,
the ACL does not take effect. The other optional parameters except the time-range keyword and the
fragment keyword are ignored.
You can configure multiple traffic rate thresholds by executing this command multiple times. However, if
you specify the same ACL in the command, the most recent configuration takes effect. If the configured
traffic rate thresholds are applied to the same multicast group, the first configuration takes effect.
Examples
# Set the traffic rate threshold for triggering a switchover to SPT to 4 kbps on the public network.
<Sysname> system-view
[Sysname] pim
[Sysname-pim] spt-switch-threshold 4
# Disable switchover to SPT on a receiver-side DR on the public network.
<Sysname> system-view
[Sysname] pim
[Sysname-pim] spt-switch-threshold infinity
ssm-policy (PIM view)
Use ssm-policy to configure the SSM group range.
Use undo ssm-policy to restore the default.
Syntax
ssm-policy acl-number
undo ssm-policy
Default
The SSM group range is 232.0.0.0/8.
Views
PIM view
Predefined user roles
network-admin
Parameters
acl-number: Specifies a basic ACL number in the range of 2000 to 2999.
Usage guidelines
The source field in an ACL specifies the SSM group range. If you specify a VPN instance in the ACL, the
ACL does not take effect. The other optional parameters except the time-range keyword and the
fragment keyword are ignored.
You can use this command to define an address range of permitted or denied multicast groups. If a
packet to a multicast group passes the ACL, the multicast mode is PIM-SSM. Otherwise, the multicast
mode is PIM-SM.
Examples
# Configure the SSM group range to be 232.1.0.0/16.
<Sysname> system-view
[Sysname] acl number 2000