Configuring A Multicast Source Policy; Configuring A Pim Hello Policy; Configuring Pim Hello Message Options - HP FlexFabric 5950 series Configuration Manual

Configuring a multicast source policy

This feature enables the device to filter multicast data by using an ACL that specifies the multicast
sources and the optional groups. It filters not only data packets but also register messages with
multicast data encapsulated. It controls the information available to downstream receivers.
To configure a multicast source policy:
Step
1. Enter system view.
2. Enter PIM view.
3. Configure a multicast
source policy.

Configuring a PIM hello policy

This feature enables the device to filter PIM hello messages by using an ACL that specifies the
packet source addresses. It is used to guard against PIM message attacks and to establish correct
PIM neighboring relationships.
If hello messages of an existing PIM neighbor are filtered out by the policy, the neighbor is
automatically removed when its aging timer expires.
To configure a PIM hello policy:
Step
1. Enter system view.
2. Enter interface view.
3. Configure a PIM hello policy.

Configuring PIM hello message options

In either a PIM-DM domain or a PIM-SM domain, hello messages exchanged among routers contain
the following configurable options:
•
DR_Priority (for PIM-SM only)—Priority for DR election. The device with the highest priority
wins the DR election. You can configure this option for all the routers in a shared-media LAN
that directly connects to the multicast source or the receivers.
•
Holdtime—PIM neighbor lifetime. If a router does not receive a hello message from a neighbor
when the neighbor lifetime expires, it regards the neighbor failed or unreachable.
•
LAN_Prune_Delay—Delay of pruning a downstream interface on a shared-media LAN. This
option has LAN delay, override interval, and neighbor tracking support (the capability to disable
join message suppression).
The LAN delay defines the PIM message propagation delay. The override interval defines a
period for a router to override a prune message. If the propagation delay or override interval on
different PIM routers on a shared-media LAN are different, the largest ones apply.
Command
system-view
pim
[ vpn-instance vpn-instance-name ]
source-policy ipv4-acl-number
Command
system-view
interface interface-type
interface-number
pim
neighbor-policy ipv4-acl-number
145
Remarks
N/A
N/A
By default, no multicast source
policy exists. The device does
not filter multicast data packets.
Remarks
N/A
N/A
By default, no PIM hello policy
exists on an interface, and all PIM
hello messages are regarded as
legal.