Adding And Removing A Node; Configuring Ethernet Ring Protection Switching - Juniper ACX1000 Configuration Manual

ACX Series Universal Access Router Configuration Guide

Adding and Removing a Node

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Configuring Ethernet Ring Protection Switching

118
trigger the re-blocking of the RPL. When clearing a
timer prevents the formation of a closed loop due to a possible timing anomaly where
the RPL Owner Node receives an outdated remote
recovery process.
When recovering from a
manual switch
to receive any latent remote
This delay timer is called the WTB timer and is defined to be 5 seconds longer than the
guard timer. This delay timer is activated on the RPL Owner Node. When the WTB timer
expires, the RPL Owner Node initiates the reversion process by transmitting an RAPS
(NR, RB) message. The WTB timer is deactivated when any higher-priority request
preempts it.
Starting with Junos OS Release 14.2, you can add or remove a node between two nodes
in an Ethernet ring. Nodes are added or removed using the
Release Description
14.2 Starting with Junos OS Release 14.2, the FDB flush depends on the RAPS
messages received on the both the ports of the ring node.
14.2 Starting with Junos OS Release 14.2, ring protection link neighbor nodes are
supported.
14.2 Starting with Junos OS Release 14.2, you can add or remove a node between
two nodes in an Ethernet ring.
14.1X53-D15 Starting with Junos OS Release 14.1X53-D15, EX Series switches automatically
log basic state transitions for the ERPS protocol.
Ethernet Ring Protection Switching Overview on page 111
Configuring Ethernet Ring Protection Switching on page 118
Example: Ethernet Ring Protection Switching Configuration on MX Routers
Ethernet Interfaces Feature Guide for Routing Devices
Example: Configuring Ethernet Ring Protection Switching on EX Series Switches
Configuring Ethernet Ring Protection Switching (CLI Procedure)
The inheritance model follows:
protection-group {
ethernet-ring ring-name (
node-id mac-address;
ring-protection-link-owner;
manual switch
manual switch
command, the delay timer must be long enough
, signal failure, or
force switch
command, the WTB
request during the
commands.
manual switch
command.
force switch
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