3Com S7902E Command Reference Manual - page 1206
1-49
order
order-value
: Specifies the order of the ACL in the group-policy list, where
order-value
has an
effective range of 1 to (the largest order value in the existing group-policy list + 1), but the value range
should not include the original order value of the ACL in the group-policy list. If you have assigned an
order-value
to a certain ACL, do not specify the same
order-value
for another ACL; otherwise the
system will give 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
infinity
command to configure disabling the SPT switchover.
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.
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
For an S7900E series Ethernet switch, 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 use
spt-switch-threshold infinity
command on a switch that may become an RP (namely, a static RP
or a C-RP).
Examples
# Disable SPT switchover on a switch that will never become an RP.
[Sysname] pim
[Sysname-pim] spt-switch-threshold infinity
ssm-policy (PIM view)
Syntax
ssm-policy acl-number
undo ssm-policy
View
Public instance PIM view, VPN instance PIM view