[Contents] [Prev] [Next] [Index] [Report an Error]

Configuring Basic APS Support

To set up a basic APS configuration, configure one interface to be the working circuit and a second to be the protect circuit. If you are using APS to protect against routing platform failure, configure one interface on each routing platform. If you are using APS to protect against FPC failure, configure two interfaces on the routing platform, one on each FPC.

For each working–protect circuit pair, configure the following:

Group name—Creates the association between the two circuits. Configure the same group name for both the working and protect routers.
Authentication key—You configure this on both interfaces. Configure the same key for both the working and protect routers.
Address of the other interface on the other routing platform—If you are configuring one routing platform to be the working router and a second to be the protect router, you must configure the address of the remote interface. You configure this on one or both of the interfaces.

The address you specify for the neighbor must never be routed through the interface on which APS is configured, or instability will result. APS neighbor only applies to inter-routing platform configurations. We strongly recommend that you directly connect the working and protect routers and that you configure the interface address of this shared network as the neighbor address.

The working and protect configurations on the routing platforms must match the circuit configurations on the ADM; that is, the working router must be connected to the ADM’s working circuit and the protect router must be connected to the protect circuit.

To set up a basic APS configuration, include the following statements at the [edit interfaces interface-name sonet-options] hierarchy level:

On the Working Circuit



[edit interfaces so-fpc/pic/port sonet-options]

aps {

working-circuit group-name;

authentication-key key;

neighbor address; # Include if protect circuit is on a different routing platform
}

On the Protect Circuit




aps {

protect-circuit group-name;

authentication-key key;

neighbor address; # Include if working circuit is on a different routing platform
}

Configure Router A to be the working router and Router B to be the protect router.

On Router A (the Working Router)



[edit interfaces so-6/1/1 sonet-options]
aps {
working-circuit San-Jose;
authentication-key “ $9$B2612345” ;
}

On Router B (the Protect Circuit)



[edit interfaces so-0/0/0 sonet-options]
aps {
protect-circuit San-Jose;
authentication-key “ $9$B2612345” ;
neighbor 192.168.1.2;# Address of Router A on the link
between A and B
}

On a Single Platform, One Interface as the Working Circuit and Another Interface as the Protect Circuit



[edit interfaces so-2/1/1 sonet-options]
aps {
working-circuit Hayward;
authentication-key blarney;
}
[edit interfaces so-3/0/2 sonet-options]
aps {
protect-circuit Hayward;
authentication-key blarney;
}

[Contents] [Prev] [Next] [Index] [Report an Error]