Service Manual
Figure 3. Maintenance Points
Maintenance End Points
A maintenance end point (MEP) is a logical entity that marks the end point of a domain.
There are two types of MEPs dened 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 eectively the switch fabric and forwarding engine.
• Down-MEP — monitors the forwarding path external another bridge.
Congure Up-MEPs on ingress ports, ports that send trac towards the bridge relay. Congure Down-MEPs on egress ports, ports
that send trac away from the bridge relay.
Figure 4. Maintenance End Points
Implementation Information
Because the S-Series has a single MAC address for all physical/LAG interfaces, only one MEP is allowed per MA (per VLAN or per
MD level).
802.1ag
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