R3303-HP HSR6800 Routers Interface Configuration Guide

Connecting routers through POS interfaces across frame relay

Network requirements

As shown in Figure 6, connect routers to a public frame relay network through POS interfaces. The routers

are premise equipment that work as DTE side of frame relay.

Router A uses frame relay sub-interfaces to connect Router B and Router C in different network segments.

Figure 6 Network diagram

Configuration procedure

1. Configure Router A:

# Configure POS interface 2/1/0.

<RouterA> system-view

[RouterA] interface pos 2/1/0

[RouterA-Pos2/1/0] clock slave

# Configure frame relay encapsulation on the interface.

[RouterA-Pos2/1/0] link-protocol fr

[RouterA-Pos2/1/0] fr interface-type dte

[RouterA-Pos2/1/0] quit

# Create sub-interface 1 on the interface.

[RouterA] interface pos 2/1/0.1

[RouterA-Pos2/1/0.1] ip address 10.10.10.1 255.255.255.0

[RouterA-Pos2/1/0.1] fr map ip 10.10.10.2 50

[RouterA-Pos2/1/0.1] mtu 1500

[RouterA-Pos2/1/0.1] quit

# Create sub-interface 2 on the interface.

[RouterA] interface pos 2/1/0.2

[RouterA-Pos2/1/0.2] ip address 20.10.10.1 255.255.255.0

[RouterA-Pos2/1/0.2] fr map ip 20.10.10.2 60

[RouterA-Pos2/1/0.2] mtu 1500

[RouterA-Pos2/1/0.2] quit

2. Configure Router B:

# Configure interface POS 2/1/0.

[RouterB] interface pos 2/1/0

[RouterB-Pos2/1/0] clock slave