Command Manual – Multicast
H3C S7500E Series Ethernet Switches Chapter 4 PIM Configuration Commands
4-50
error information. If you do not specify an order-value, the order value of the ACL will
remain the same in the group-policy list.
Description
Use the spt-switch-threshold command to configure the RPT-to-SPT switchover
parameters.
Use the undo spt-switch-threshold command to restore the default configuration.
By default, the device switches to the SPT immediately after it receives the first
multicast packet from the RPT.
Note that:
z To adjust the order of an existing ACL in the group-policy list, you can use the
acl-number argument to specify this ACL and set its order-value. This will insert
the ACL to the position of order-value in the group-policy list. The order of the
other existing ACLs in the group-policy list will remain unchanged.
z To use an ACL that does not exist in the group-policy list, you can use the
acl-number argument to specify an ACL and set its order-value. This will insert the
ACL to the position of order-value in the group-policy list. If you do not include the
order order-value option in your command, the ACL will be appended to the end of
the group-policy list.
z If you use this command multiple times on the same multicast group, the first traffic
rate configuration matched in sequence will take effect.
z Once a multicast forwarding entry is created, subsequent multicast data will not be
encapsulated in register messages before being forwarded even if a register
outgoing interface is available. Therefore, to avoid forwarding failure, do not
include the infinity keyword in the spt-switch-threshold command on a switch
that may become an RP (namely, a static RP or a C-RP).
Examples
# Disable RPT-to-SPT switchover on a switch that will never become an RP.
<Sysname> system-view
[Sysname] pim
[Sysname-pim] spt-switch-threshold infinity
4.1.58 ssm-policy
Syntax
ssm-policy acl-number
undo ssm-policy
View
PIM view
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