Disabling Or Enabling Distributed Periodic Packet Management Globally - Juniper JUNOS OS 10.3 - SOFTWARE Manual

Related
Documentation
Configuring Distributed Periodic Packet Management on an EX Series Switch (CLI
Procedure)

Disabling or Enabling Distributed Periodic Packet Management Globally

Copyright © 2010, Juniper Networks, Inc.
Configuring BGP Sessions (J-Web Procedure) on page 1677
Configuring an OSPF Network (J-Web Procedure) on page 1681
Configuring a RIP Network (J-Web Procedure) on page 1685
Configuring Static Routing (J-Web Procedure) on page 1690
Layer 3 Protocols Supported on EX Series Switches on page 14
Periodic packet management (PPM) is responsible for processing a variety of
time-sensitive periodic tasks so that other processes on the EX Series switch can more
optimally direct their resources.
The responsibility for PPM processing on the switch is distributed between the Routing
Engine and either the access interfaces (on EX3200 and EX4200 switches) or the line
cards (on EX8200 switches) for all protocols that use PPM by default. This distributed
model provides a faster response time for protocols that use PPM than the response
time provided by the nondistributed model.
If distributed PPM is disabled, the PPM process runs on the Routing Engine only.
Distributed PPM can be disabled for all protocols that use PPM or for a single protocol
that uses PPM.
BEST PRACTICE: We recommend that, generally, you disable distributed
PPM only if Juniper Networks Customer Service advises you to do so. You
should disable distributed PPM only if you have a compelling reason to disable
it.
This topic describes:
Disabling or Enabling Distributed Periodic Packet Management Globally on page 1697
Disabling or Enabling Distributed Periodic Packet Management for Link Aggregation
Control Protocol (LACP) Packets on page 1698
Distributed PPM is enabled by default. Disable distributed PPM if you need to move all
PPM processing to the Routing Engine. Enable distributed PPM if it was previously disabled
and you need to run distributed PPM.
To disable distributed PPM:
[edit routing-options]
user@switch# set ppm no-delegate-processing
To enable distributed PPM if it was previously disabled:
Chapter 71: Configuring Layer 3 Protocols
1697