Juniper ACX2000 Configuration Guide

NOTE: Starting Junos OS Release 16.1, the Ethernet loss measurement
(ETH-LM) results are inaccurate when connectivity fault management (CFM)
and performance monitoring (PM) PDUs received locally at a maintenance
endpoint (MEP) as classified as belonging to the yellow class or a packet
loss priority (PLP) of medium-high. This problem of incorrect results is specific
to Ethernet loss measurement for CFM sessions of down MEPs. The Ethernet
loss measurement statistics are inaccurate in the following scenarios:
•
Ethernet loss measurement is working on a CFM session for a MEP in down
state
•
CFM PDUs received on the logical interface of the down MEP are classified
by the classifier as yellow or medium-high PLP
•
A packet is identified as yellow when the input classifier marks the PLP as
medium-high.
The problem of discrepancies with Ethernet loss measurement results is not
observed when you configure Ethernet loss measurement in colorless mode.
To avoid this problem of inaccurate loss measurement results, provision all
local CFM PDUs as green or with the PLP as high.
NOTE: Starting with Junos OS Release 16.1, performance monitoring for
connectivity fault management (by including the performance-monitoring
statement and its substatements at the [edit protocols oam ethernet
connectivity-fault-management] hierarchy level) is not supported when the
network-to-network (NNI) or egress interface is an aggregated Ethernet
interface with member links on DPCs.
Release History Table DescriptionRelease
Starting Junos OS Release 16.1, the Ethernet loss measurement (ETH-LM) results are
inaccurate when connectivity fault management (CFM) and performance monitoring
(PM) PDUs received locally at a maintenance endpoint (MEP) as classified as
belonging to the yellow class or a packet loss priority (PLP) of medium-high.
16.1
Starting with Junos OS Release 16.1, performance monitoring for connectivity fault
management (by including the performance-monitoring statement and its
substatements at the [edit protocols oam ethernet
connectivity-fault-management] hierarchy level) is not supported when the
network-to-network (NNI) or egress interface is an aggregated Ethernet interface
with member links on DPCs.
16.1
Related
Documentation
Managing Continuity Measurement Statistics•
• On-Demand Mode for SLA Measurement on page 1125
• Proactive Mode for SLA Measurement on page 1123
Copyright © 2017, Juniper Networks, Inc.1122
ACX Series Universal Access Router Configuration Guide

Juniper ACX2000 Specifications

General

Brand	Juniper
Model	ACX2000
Category	Network Router
Language	English