Juniper Networks JUNOS OS 10.4 - Manual (Page 164)

Example: Configuring Ethernet LFM Between Provider Edge and Customer Edge
In this example, LFM is enabled on an IP link between the provider edge (PE) and customer
edge (CE) interfaces. If the link goes down, the fault will be detected by LFM and the
interfaces on both sides will be marked
Link-Layer-Down . This results in notifications to
various subsystems (for example, routing) which will take appropriate action.
The link running LFM is shown in Figure 19 on page 144 .
Figure 19: Ethernet LFM Between Provider Edge and Customer Edge
To configure Ethernet LFM on an IP link between PE and CE interfaces:
1. Configure LFM on the PE router:
[edit]
interfaces ge-1/1/0 {
unit 0 {
family inet {
address 11.11.11.1/24;
}
}
}
protocols {
oam {
ethernet {
link-fault-management {
interface ge-1/1/0 {
pdu-interval 1000;
pdu-threshold 5;
}
}
}
}
}
2. Configure LFM on the CE router:
[edit]
interfaces ge-1/1/0 {
unit 0 {
family inet {
address 11.11.11.2/24;
}
}
}
protocols {
oam {
ethernet {
Copyright © 2013, Juniper Networks, Inc. 144
Junos OS 13.1 MX Series 3D Universal Edge Routers Solutions Guide