Creating a Maintenance Association
A Maintenance association (MA) is a subdivision of an MD that contains all managed entities
corresponding to a single end-to-end service, typically a virtual area network (VLAN).
• Create maintenance association.
ECFM DOMAIN mode
service name vlan vlan-id
Create Maintenance Points
Domains are comprised of logical entities called maintenance points. A maintenance point is a interface
demarcation that confines CFM frames to a domain.
There are two types of maintenance points:
• Maintenance End Points (MEPs) — a logical entity that marks the end-point of a domain.
• Maintenance Intermediate Points (MIPs) — a logical entity configured at a port of a switch that
constitutes intermediate points of an Maintenance Entity (ME). An ME is a point-to-point relationship
between two MEPs within a single domain.
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
100
802.1ag
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