Ethernet Oam Connectivity Fault Management - Juniper ACX1000 Configuration Manual

ACX Series Universal Access Router Configuration Guide
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Ethernet OAM Connectivity Fault Management

1126
}
}
}
Both interfaces will use the same VLAN ID.
On each router, attach peer MEPs to the two interfaces. The following configuration
2.
is typical:
[edit protocols]
oam {
ethernet {
connectivity-fault-management {
maintenance-domain md-name { # On both routers
level number;
maintenance-association ma-name { # On both routers
continuity-check {
interval 100ms;
hold-interval 1;
}
mep mep-id { # Attach to VLAN interface
auto-discovery;
direction (up | down);
interface interface-name;
priority number;
}
}
}
}
}
}
Ethernet Frame Delay Measurements Overview on page 1117
The most complete connectivity fault management (CFM) is defined in IEEE 802.1ag.
This topic emphasizes the use of CFM in a Metro Ethernet environment.
The major features of CFM are:
Fault monitoring using the continuity check protocol. This is a neighbor discovery and
health check protocol that discovers and maintains adjacencies at the VLAN or link
level.
Path discovery and fault verification using the linktrace protocol. Similar to IP traceroute,
this protocol maps the path taken to a destination MAC address through one or more
bridged networks between the source and destination.
Fault isolation using the loopback protocol. Similar to IP ping, this protocol works with
the continuity check protocol during troubleshooting.
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