HP 6125XLG - Displaying and Maintaining PIM; Enabling BFD for PIM

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Enabling BFD for PIM
PIM uses hello messages to elect a DR for a shared-media network. The elected DR is the only multicast
forwarder on the shared-media network.
If the DR fails, a new DR election process will start after the DR ages out. However, 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 on a shared-media
network to detect failures of the links among PIM neighbors.
You must enable BFD for PIM on all PIM routers on a shared-media network, so that the PIM neighbors
can fast detect DR failures and start a new DR election process. For more information about BFD, see
High Availability Configuration Guide.
Before you configure this feature on an interface, be sure to enable PIM-DM or PIM-SM on the interface.
To enable BFD for PIM:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter interface view.
interface interface-type interface-number N/A
3. Enable BFD for PIM.
pim bfd enable
By default, BFD is disabled for
PIM.
Displaying and maintaining PIM
Execute display commands in any view.
Task Command
Display information about the
register-tunnel interface.
display interface [ register-tunnel [ interface-number ] ] [ brief
[ description | down ] ]
Display BSR information in the
PIM-SM domain.
display pim [ vpn-instance vpn-instance-name ] bsr-info
Display information about the
routes used by PIM.
display pim [ vpn-instance vpn-instance-name ] claimed-route
[ source-address ]
Display C-RP information in the
PIM-SM domain.
display pim [ vpn-instance vpn-instance-name ] c-rp [ local ]
Display DF information in the
BIDIR-PIM domain.
display pim [ vpn-instance vpn-instance-name ] df-info [ rp-address ]
Display PIM information on an
interface.
display pim [ vpn-instance vpn-instance-name ] interface [ interface-type
interface-number ] [ verbose ]
Display PIM neighbor information.
display pim [ vpn-instance vpn-instance-name ] neighbor
[ neighbor-address | interface interface-type interface-number |
verbose ] *