Reference Guide

These roles define the relationships between all devices so that each device can monitor the layers under

its responsibility.

Creating a Maintenance End Point

A maintenance endpoint (MEP) is a logical entity that marks the endpoint of a domain.

There are two types of MEPs defined in 802.1ag for an 802.1 bridge:

• Up-MEP — monitors the forwarding path internal to a bridge on the customer or provider edge. On

Dell Networking systems, the internal forwarding path is effectively the switch fabric and forwarding

engine.

• Down-MEP — monitors the forwarding path external another bridge.

Configure Up- MEPs on ingress ports, ports that send traffic towards the bridge relay. Configure Down-

MEPs on egress ports, ports that send traffic away from the bridge relay.

1. Create an MEP.

INTERFACE mode

ethernet cfm mep {up-mep | down-mep} domain {name | level } ma-name name

mepid mep-id

The range is from 1 to 8191.

2. Display configured MEPs and MIPs.

EXEC Privilege mode

show ethernet cfm maintenance-points local [mep | mip]

Dell#show ethernet cfm maintenance-points local mep

---------------------------------------------------------------

MPID Domain Name Level Type Port CCM-Status

MA Name VLAN Dir MAC

----------------------------------------------------------------

100 cfm0 7 MEP Gi 4/10 Enabled

test0 10 DOWN 00:01:e8:59:23:45

200 cfm1 6 MEP Gi 4/10 Enabled

test1 20 DOWN 00:01:e8:59:23:45

300 cfm2 5 MEP Gi 4/10 Enabled

test2 30 DOWN 00:01:e8:59:23:45

Creating a Maintenance Intermediate Point

Maintenance intermediate point (MIP) is a logical entity configured at a port of a switch that constitutes

intermediate points of a maintenance entity (ME).

An ME is a point-to-point relationship between two MEPs within a single domain. An MIP is not

associated with any MA or service instance, and it belongs to the entire MD.

1. Create a MIP.

INTERFACE mode

ethernet cfm mip domain {name | level } ma-name name

2. Display configured MEPs and MIPs.

EXEC Privilege mode

show ethernet cfm maintenance-points local [mep | mip]

802.1ag