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ppm

Syntax

Syntax (QFX5110, QFX5120, QFX5200, and QFX5210)

Hierarchy Level

Description

Disable distributed periodic packet management (PPM) to the Packet Forwarding Engine (on routers), to access ports (on EX3200 and EX4200 switches, and QFX Series), or to line cards (on EX6200 and EX8200 switches).

After you disable PPM, PPM processing continues to run on the Routing Engine.

In Junos OS Release 8.2, PPM was moved from the Routing Engine to the Packet Forwarding Engine, access ports, or line cards. The no-delegate-processing statement disables the default behavior and restores the legacy behavior.

Default

Distributed PPM processing is enabled for all protocols that use PPM such as:

  • Bidirectional Forwarding Detection (BFD)

  • Connectivity Fault Management (CFM)

  • Link Aggregation Control Protocol (LACP)

  • Link Fault Management (LFM)

  • Real-time Performance Monitoring (RPM)

  • Spanning Tree Protocol (STP)

  • Synchronous Ethernet (SYNCE)

  • Virtual Router Redundancy Protocol (VRRP)

Note:

The protocols BFD and CFM are supported on SRX300, SRX320, SRX340, SRX345 and SRX1500 devices.

The protocol LACP is supported on SRX5400, SRX 5600, and SRX5800 devices.

Options

no-delegate-processing Disable PPM to the Packet Forwarding Engine, access ports, or line cards. Distributed PPM is enabled by default.
redistribution-timer Ensures that link aggregation (and STP) work properly for the periodic packet management (PPM) daemons on the aggregation and satellite devices. A value of 120 is recommended for MXVC-ISSU.
inline-processing-enable Enable inline processing. Inline processing allows you to set BFD timers to less than one second. On platforms that support hardware-assisted inline BFD, use this option to enable it.

Required Privilege Level

routing—To view this statement in the configuration.

routing-control—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Release 9.4.

inline-processing-enable option introduced in Junos OS Release 19.4R1.