H3C Technologies H3C S12500-X Series Switches - Manual (Page 93)

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about the GR restarter and continue sending hello packets periodically to the GR restarter until the restart
timer expires.
If a GR helper receives a hello message from the GR restarter before the restart timer expires, the
recovery timer is started and signaling packet exchange is triggered to restore the original soft state.
Otherwise, all RSVP soft state information and forwarding entries relevant to the neighbor are removed.
When the recovery timer expires, soft state information and forwarding entries that are not restored are
removed.
Protocols and standards
• RFC 2205, Resource ReSerVation Protocol
• RFC 3209, RSVP-TE: Extensions to RSVP for LSP Tunnels
• RFC 2961, RSVP Refresh Overhead Reduction Extensions
RSVP configuration task list
Tasks at a glance
(Required.) Enabling RSVP
(Optional.) Perform the following tasks on each node of an MPLS TE tunnel according to your network
requirements:
• Configuring RSVP refresh
• Configuring RSVP Srefresh and reliable RSVP message delivery
• Configuring RSVP hello extension
• Configuring RSVP authentication
• Configuring RSVP GR
• Enabling BFD for RSVP
Enabling RSVP
Step Command Remarks
1. Enter system view. system-view N/A
2. Enable global RSVP and enter
RSVP view.
rsvp
By default, global RSVP is
disabled.
3. Return to system view. quit N/A
4. Enter interface view.
interface interface-type
interface-number
N/A
5. Enable RSVP for the interface. rsvp enable
By default, RSVP is disabled on
an interface.