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Configuring Inter-PSD Forwarding on a PSD
To configure inter-PSD forwarding on a PSD:
- Use the xt-fpc/pic/slot statement at the [edit interfaces] hierarchy level to configure cross-connections with the other PSDs.
- Configure logical interfaces under the cross-connect interface
using the unit logical-unit-number statement at the [edit interfaces xt-fpc/pic/slot] hierarchy level.
The values for logical-unit-number must match values set in the Root System Domain (RSD) configuration.
- For each logical interface, include the following statements:
- peer-psd psdn—Configure a peer PSD. The PSD identification is a numeric value with a range of 1 though 31.
- peer-interface interface-name—Configure the tunnel peer interface that is bound to the logical interface.
- encapsulation frame-relay—Configure Frame Relay encapsulation. Currently, only Frame Relay encapsulation is supported for inter-PSD forwarding.
- point-to-point—Configure the interface as a point-to-point interface.
- dlci dlci-number—Configure the data-link connection identifier (DLCI) for the point-to-point interface.
- family family-name—Configure the protocol family for the interface.
- Repeat this procedure for each PSD that you want to include in inter-PSD forwarding.
In the example illustrated in Figure 1, a cross-connect using a tunnel interface transports packets between the logical interfaces configured on each PSD.
Figure 1: Example: Inter-PSD Forwarding
Table 1: Example: Inter-PSD Forwarding
PSD | Interfaces |
|---|---|
PSD 5 | xt-4/3/0.1 10.0.0.2 |
xt-4/3/0.2 | |
PSD 7 | xt-3/3/0.1 10.0.0.1 |
xt-3/3/0.2 | |
PSD 3 | xt-3/3/0.1 10.0.0.1 |
xt-2/3/0.2 |
In this example, the [edit interfaces] hierarchy on PSD 5 is configured as follows:
interfaces {
xt-4/3/0 {
unit 1 {
peer-psd psd7;
peer-interface xt-3/3/0.1;
encapsulation frame-relay;
point-to-point;
dlci 1;
family inet {
address 10.0.0.2/32 {
destination 10.0.0.1;
}
}
family inet6 {
address 2121:2121::2/64;
}
}
unit 2 {
peer-psd psd3;
peer-interface xt-2/3/0.1;
encapsulation frame-relay;
point-to-point;
dlci 2;
family inet {
address 10.0.1.2/32 {
destination 10.0.1.1;
}
}
}
}
}
In this example, the [edit interfaces] hierarchy on PSD 7 is configured as follows:
interfaces {
xt-3/3/0 {
unit 1 {
peer-psd psd5;
peer-interface xt-4/3/0.1;
encapsulation frame-relay;
point-to-point;
dlci 1;
family inet {
address 10.0.0.1/32 {
destination 10.0.0.2;
}
}
family inet6 {
address 2121:2121::1/64;
}
}
unit 2 {
peer-psd psd3;
peer-interface xt-2/3/0.2;
encapsulation frame-relay;
point-to-point;
dlci 2;
family inet {
address 10.1.1.1/32 {
destination 10.1.1.2;
}
}
}
}
}
In this example, the [edit interfaces] hierarchy on PSD 3 is configured as follows:
interfaces {
xt-2/3/0 {
unit 1 {
peer-psd psd5;
peer-interface xt-4/3/0.2;
encapsulation frame-relay;
point-to-point;
dlci 1;
family inet {
address 10.0.1.1/32 {
destination 10.0.1.2;
}
}
}
unit 2 {
peer-psd psd7;
peer-interface xt-3/3/0.2;
encapsulation frame-relay;
point-to-point;
dlci 2;
family inet {
address 10.1.1.2/32 {
destination 10.1.1.1;
}
}
}
}
}
