MPLS Common Configurations

Overview of MPLS

MPLS speeds up network forwarding and is used to transmit various new services.

Configuration Precautions for MPLS Common

Specifying an MPLS TTL Handling Mode

An MPLS time to live (TTL) handling mode defines how a node propagates TTL information between the IP header and label stack in each MPLS packet.

Configuring a Packet Load Balancing Mode

You can configure a load balancing mode for packets carrying MPLS labels on a P.

Configuring Packet Fragmentation on an MPLS P Node

This section describes how to configure packet fragmentation on an MPLS P node.

Configuring the TTL and EXP Processing Mode When the Explicit Null Label Is Used

This section describes how to configure the TTL and EXP processing mode when the explicit null label is used.

Configuring TTL and EXP Processing Modes for MPLS Packets with Label 7

This section describes how to configure the mode of handling the TTL and EXP fields carried in MPLS packets with label 7 on the egress PE.

Enabling Private-and-Public-Network Separation for MPLS Services

This section describes how to configure private-and-public-network separation for MPLS services.

Optimizing MPLS

Optimizing MPLS includes the label value related to the penultimate hop popping (PHP) function and the MPLS maximum transmission unit (MTU) configured on interfaces.

Configuring MPLS Resource Threshold-related Alarms

MPLS resource threshold-related alarms can be configured on a device to enable the device to report an alarm if the number of MPLS resources of a specified type reaches the upper limit. The alarms facilitate operation and maintenance.