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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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Label Advertisement, Distribution, and Retention

Label Advertisement, Distribution, and Retention

LDP peers send messages, such as Label Mapping messages, over an LDP session to exchange label information with each other to establish an LSP. Relevant standards define the label advertisement, distribution control, and retention modes.

Label Advertisement Modes

An LSR on an MPLS network binds a label to a specific FEC and notifies its upstream LSRs of the binding. This process is called label advertisement.

The label advertisement modes on upstream and downstream LSRs must be the same.

Label Distribution Control Modes

The label distribution control mode defines how an LSR distributes labels.

Label Retention Modes

The label retention mode defines how the LSR handles label mapping from non-preferred next hop.

Updated: 2019-01-14

Document ID: EDOC1100058933

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