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• Example: Configuring Ethernet CFM over VPLS on page 105
• Example: Configuring Ethernet CFM on Physical Interfaces on page 116
Example: Configuring Ethernet CFM on Physical Interfaces
CFM can be used to monitor the physical link between two routers. This functionality is
similar to that supported by theIEEE 802.3ah LFM protocol.
NOTE: The configurations in this example are only partial examples of
complete and functional router configurations. Do not copy these
configurations and use them directly on an actual system.
In the following example, two routers (Router 1 and Router 2) are connected by a
point-to-point Gigabit Ethernet link. The link between these two routers is monitored
using CFM. This is shown in Figure 17 on page 116. The single boundary is a “down mep”
in CFM terminology.
Figure 17: Ethernet CFM on Physical Interfaces
Router 1 Configure the interface and CFM:
[edit]
interfaces ge-1/0/1 {
unit 0 {
family inet;
}
}
protocols {
oam {
ethernet {
connectivity-fault-management {
maintenance-domain private {
level 0;
maintenance-association private-ma {
continuity-check {
interval 1s;
}
mep 100 {
interface ge-1/0/1;
direction down;
auto-discovery;
}
}
}
Copyright © 2010, Juniper Networks, Inc.116
Junos 10.4 MX Series Ethernet Services Routers Solutions Guide