Enabling Pim-Sm - HP FlexNetwork 7500 Series Configuration Manual

Enabling PIM-SM

Before you configure PIM-SSM, you must enable PIM-SM, because the implementation of the SSM
model is based on subsets of PIM-SM.
When you deploy a PIM-SSM domain, enable PIM-SM on non-border interfaces of the routers.
IMPORTANT:
All the interfaces on a device must be enabled with the same PIM mode.
To enable PIM-SM:
Step
Enter system view.
1.
Enable IP multicast routing,
2.
and enter MRIB view.
Return to system view.
3.
Enter interface view.
4.
Enable PIM-SM.
5.
Configuring the SSM group range
When a PIM-SM enabled interface receives a multicast packet, it checks whether the multicast
group address of the packet is in the SSM group range. If the multicast group address is in this range,
the PIM mode for this packet is PIM-SSM. If the multicast group address is not in this range, the PIM
mode is PIM-SM.
Configuration guidelines
When you configure the SSM group range, follow these guidelines:
•
Configure the same SSM group range on all routers in the entire PIM-SSM domain. Otherwise,
multicast information cannot be delivered through the SSM model.
•
When a member of a multicast group in the SSM group range sends an IGMPv1 or IGMPv2
report message, the device does not trigger a (*, G) join.
Configuration procedure
To configure an SSM group range:
Step
Enter system view.
1.
Enter PIM view.
2.
Configure the SSM group
3.
range.
Command
system-view
multicast routing
[ vpn-instance
vpn-instance-name ]
quit
interface interface-type
interface-number
pim sm
Command
system-view
pim
ssm-policy acl-number
121
Remarks
N/A
By default, IP multicast routing is
disabled.
N/A
N/A
By default, PIM-SM is disabled.
Remarks
N/A
N/A
The default range is 232.0.0.0/8.