Setting The Maximum Size Of Each Join Or Prune Message - HP FlexNetwork 7500 Series Configuration Manual

Setting the maximum size of each join or prune message

The loss of an oversized join or prune message might result in loss of massive information. You can
set a small value for the size of each join or prune message to reduce the impact.
To set the maximum size of each join or prune message:
Step
Enter system view.
1.
Enter PIM view.
2.
Set the maximum size of
3.
each join or prune message.
Enabling BFD for PIM
If a DR on a shared-media network fails, a new DR election process does not start until the DR ages
out. In addition, it might take a long period of time before other routers detect the link failures and
trigger a new DR election. To start a new DR election process immediately after the original DR fails,
enable BFD for PIM to detect link failures among PIM neighbors.
You must enable BFD for PIM on all PIM routers on a shared-media network. For more information
about BFD, see High Availability Configuration Guide.
You must enable PIM-DM or PIM-SM on an interface before you configure this feature on the
interface.
To enable BFD for PIM:
Step
Enter system view.
1.
Enter interface
2.
view.
Enable BFD for
3.
PIM.
Enabling PIM passive mode
To guard against PIM hello spoofing, you can enable PIM passive mode on an interface which is
directly connected to user hosts. The PIM passive interface cannot receive or forward PIM protocol
messages (excluding register, register-stop and C-RP-Adv messages). In addition, the interface acts
as the DR and the DF on the subnet.
Configuration guidelines
When you enable PIM passive mode, follow these restrictions and guidelines:
•
This feature takes effect only when PIM-DM or PIM-SM is enabled on the interface.
•
Do not enable this feature on a shared-media LAN with multiple PIM routers. If you do this, the
PIM passive interface might become a second DR and DF on the subnet.
Configuration procedure
To enable PIM passive mode on an interface:
Command
system-view
pim [ vpn-instance
vpn-instance-name ]
jp-pkt-size size
Command
system-view
interface interface-type interface-number
pim bfd enable
126
Remarks
N/A
N/A
The default setting is 8100 bytes.
Remarks
N/A
N/A
By default, BFD is disabled
for PIM.