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Example: Configuring Protection Switching Between Psuedowires
Requirements
This example uses the following hardware and software components:
Junos OS Release 11.2 or later
2 MX Series PE routers
Overview and Topology
The physical topology of the protection switching between psuedowires example is shown in Figure 1.
Topology
The following definitions describe the meaning of the device abbreviations used in Figure 1.
Customer edge (CE) device—A device at the customer site that provides access to the service provider’s VPN over a data link to one or more provider edge (PE) routers.
Provider edge (PE) device—A device, or set of devices, at the edge of the provider network that presents the provider's view of the customer site.
Configuration
Procedure
Step-by-Step Procedure
To configure protection switching between psuedowires, perform these tasks:
Configure automatic protection switching.
protocols { protection-group { ethernet-aps { profile-1 { protocol g8031; hold-time 1000s; revert-time 5m; } } }Configure the connectivity fault management.
ethernet { oam { connectivity-fault-management { maintenance-domain md1 { level 5;Configure the continuity check message for the working path.
maintenance-association W { protect maintenance-association P { aps-profile profile-1; } continuity-check { interval 1s; } mep 100 { interface ge-1/0/0.0 working; direction down; auto-discovery; } }Configure the continuity check message for the protection path.
maintenance-association P { continuity-check { interval 1s; } mep 100 { interface ge-1/0/0.0 protect; direction down; auto-discovery; } }
Results
Check the results of the configuration:
protocols {
protection-group {
ethernet-aps {
profile-1 {
protocol g8031;
hold-time 1000s;
revert-time 5m;
}
}
}
ethernet {
oam {
connectivity-fault-management {
maintenance-domain md1 {
level 5;
maintenance-association W {
protect maintenance-association P {
aps-profile profile-1;
}
continuity-check {
interval 1s;
}
mep 100 {
interface ge-1/0/0.0 working;
direction down;
auto-discovery;
}
}
maintenance-association P {
continuity-check {
interval 1s;
}
mep 100 {
interface ge-1/0/0.0 protect;
direction down;
auto-discovery;
}
}
}
}
}
}