By configuring the RSVP Hello extension, you can enable a device to quickly check reachability between RSVP nodes.
Perform the following configurations on a GR node and its neighboring nodes.
The system view is displayed.
The MPLS view is displayed.
The RSVP Hello extension function is enabled globally.
The system view is displayed.
The RSVP-TE interface view is displayed.
The interface is switched to Layer 3 mode.
By default, an Ethernet interface works in Layer 2 mode.
Only the S5720-EI, S5720-HI, S5730-HI, S5731-H, S5731-S, S5731S-H, S5731S-S, S5732-H, S6720-EI, S6720-HI, S6720S-EI, S6730-H, S6730S-H, S6730-S, and S6730S-S support switching between Layer 2 and Layer 3 modes.
The RSVP Hello extension function is enabled on the interface.
By default, although the RSVP Hello extension function has been enabled globally, it is disabled on RSVP-enabled interfaces.