Configuration Guide

Table Of Contents
©2021 Extreme Networks, Inc. All rights reserved
October 2021
135
20.1.23
Connectivity Fault Management (CFM) Configuration
20.1.23.1 Manual CFM Configuration: Software releases 7.0 and 7.1
for the ERS 8800 and 3.3 for the VSP 9000
A Maintenance Domain (MD) up to 22 characters must be defined. To simplify the configuration when
migrating to a future software release that support the simplified configuration for CFM, it is recommended
to use a MD name of spbm. As two B-BVLANs are presently supported, a Maintenance Association (MA)
for each B-VLAN must be defined if you wish to use CFM for testing on both of these B-BLANs. Assuming
we have B-VLANs 4051 and 4052 defined, we will create two MA’s with names of 4051 and 4052. If a
Maintenance End Point (MEP) is defined, only a single value is supported for each MA.
CFM assuming MD = spbm, MA = 4051 & 4052, and MEP = 2
config terminal
cfm maintenance-domain spbm
cfm maintenance-association spbm 4051
cfm maintenance-association spbm 4052
cfm maintenance-endpoint spbm 4051 2 state enable
cfm maintenance-endpoint spbm 4052 2 state enable
vlan nodal-mep 4051 spbm 4051
2
vlan nodal-mep 4052 spbm 4052
2
20.1.23.2 Simplified CFM Configuration:
Starting in software release 7.1.1 for the ERS 8800, 3.4 for the VSP 9000, 10.2 for the VSP 7000, 5.7 for
the ERS 4800, and 3.0 for the VSP 4000, CFM commands will automatically create a MEP and a MIP at a
specific level for every SPB B-VLAN provisioned on the switch. Hence, you no longer have to configure
explicit MEPs and MIPs and associated VLANs with MEPs and MIPs.
CFM – simplified configuration
config terminal
cfm cmac mepid <1-8191>
cfm cmac level <0-7>
cfm cmac enable
cfm spbm mepid <1-8191>
cfm spbm level <0-7>
cfm spbm enable
CMAC provisioning is only required on BEB where C-VLANs are terminated and is no
t
supported at this time for the VSP 7000, VSP 8000, VSP 7200, ERS 5900, and ERS
4800.