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Feature Description - MPLS 01

NE05E and NE08E V300R003C10SPC500

This is NE05E and NE08E V300R003C10SPC500 Feature Description - MPLS
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The non-stop routing (NSR) technique is an upgrade of the NSF technique. If a fault occurs on the control plane of a node, NSR ensures an uninterrupted connection between the forwarding and control planes. This prevents the fault from affecting the forwarding plane on a neighboring node.

With the wide use of IP/MPLS on bearer networks and metropolitan area networks (MANs), higher reliability is required. NSR is a high reliability solution and plays a more and more important role on operators' networks.

RSVP implements NSR by synchronizing data on the backup control board with the master control board. NSR allows the backup control board to rapidly take over services from the original master control board after switchover in the situation where a neighboring node does not detect the fault.

RSVP synchronizes the following key data between the backup and master control boards:
  • Configuration-associated data

  • Stable LSP state blocks

  • Key batch event

Updated: 2019-01-14

Document ID: EDOC1100058933

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