Users 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, that send traffic towards the bridge relay. Configure Down-MEPs on egress 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. A 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]
Dell#show ethernet cfm maintenance-points local mip
--------------------------------------------------------------------
MPID Domain Name Level Type Port CCM-Status
MA Name VLAN Dir MAC
---------------------------------------------------------------------
0 service1 4 MIP Gi 1/5 Disabled
My_MA 3333 DOWN 00:01:e8:0b:c6:36
0 service1 4 MIP Gi 1/5 Disabled
Your_MA 3333 UP 00:01:e8:0b:c6:36
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802.1ag