Configuration Guide

Table Of Contents
©2021 Extreme Networks, Inc. All rights reserved
October 2021
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Hierarchal relationship exists between domains based on levels.
Recommended values of levels are as follows
Customers – Largest (e.g., 7)
Providers – In between (e.g., 3)
Operators – Smallest (e.g., 1)
Maintenance Association
Maintenance Association (MA) is a set of MEPs, all of which are configured with the same
MAID (Maintenance Association Identifier) and MD Level, each of which is configured with
a MEPID unique within that MAID and MD Level, and all of which are configured with the
complete list of MEPIDs”
Maintenance End Point
Maintenance End Point (MEP), are Points at the edge of the domain, define the boundary
for the domain A MEP sends and receives CFM frames through the relay function, drops
all CFM frames of its level or lower that come from the wire side
Maintenance Intermediate Point
Maintenance Intermediate Point (MIP), are Points internal to a domain, not at the boundary.
MIPs are Passive points, respond only when triggered by CFM trace route and loop-back
messages
There are 5 message types for CFM
Continuity Check Message (CCM) – Not implemented.
Loopback Message (LBM)
Loopback Reply (LBR)
Linktrace Message (LTM)
Linktrace Reply (LTR)
Raw loopback and linktrace messages can be generated using the following ACLI commands:
loopback <mdName> <maName> <mepId> <rmepMac>
linktrace <mdName> <maName> <mepId> <rmepMac>
However, a set of L2 OAM commands which leverage the underlying CFM loopback and linktrace
messages but provide a more user friendly interface and a simplified summary of the information
which is carried in the CFM messages. These commands can also be executed against a target
system name or IP address instead of a MAC address of MD.MA.MEP-id.
l2 ping <vlan> mac <SystemIdMac>
l2 ping <vlan> routernodename <RouterNodeName >
l2 traceroute vlan <vlan> mac <SystemIdMac>
l2 traceroute vlan <vlan> routernodename <RouterNodeName >
l2 traceroute ip-address < ipaddress> ?
priority Priority <0-7>
source-mode Source mode<nodal|noVlanMac|smltVirtual>
ttl-value Ttl value <1-255>
vrf Vrf
<cr>