Enabling State-Refresh Capability - HP A5500 SI Switch Series Configuration Manual

To do...
Enter system view
Create a VPN instance and enter
VPN instance view
Configure an RD for the VPN
instance
Enable IP multicast routing
Enter interface view
Associate the current interface
with the VPN instance
Enable PIM-DM
CAUTION:
All the interfaces in the same VPN instance on the same device must work in the same PIM mode.
•
PIM-DM does not work with multicast groups in the SSM group range.
•
NOTE:
For more information about the ip vpn-instance, route-distinguisher and ip binding vpn-instance
•
commands, see the
For more information about the multicast routing-enable command, see the
•
Reference
.

Enabling state-refresh capability

Pruned interfaces resume multicast forwarding when the pruned state times out. To prevent this, the
router with the multicast source attached periodically sends an (S, G) state-refresh message, which is
forwarded hop by hop along the initial multicast flooding path of the PIM-DM domain, to refresh the
prune timer state of all the routers on the path. A multi-access subnet can have the state-refresh capability
only if the state-refresh capability is enabled on all PIM routers on the subnet.
Follow these steps to enable the state-refresh capability:
To do...
Enter system view
Enter interface view
Enable the state-refresh capability
Use the command...
system-view
ip vpn-instance vpn-instance-name
route-distinguisher route-
distinguisher
multicast routing-enable
interface interface-type interface-
number
ip binding vpn-instance vpn-
instance-name
pim dm
MPLS Command Reference
Use the command...
system-view
interface interface-type interface-
number
pim state-refresh-capable
129
Description
—
—
Required
Not configured by default.
Required
Disabled by default.
—
Required
No VPN instance is associated
with an interface by default.
Required
Disabled by default.
.
IP Multicast Command
Remarks
—
—
Optional
Enabled by default