Configuration procedure
Configuring Router A
# Configure the clock mode of POS 2/2/0 as master.
<RouterA> system-view [RouterA] interface pos 2/2/0 [RouterA-Pos2/2/0] clock master
# Enable HDLC encapsulation on POS 2/2/0.
[RouterA-Pos2/2/0] link-protocol hdlc
# Assign an IP address to POS 2/2/0.
[RouterA-Pos2/2/0] ip address 12.1.1.1 24 [RouterA-Pos2/2/0] quit
Configuring Router B
# Enable HDLC encapsulation on POS 2/2/0.
<RouterB> system-view [RouterB] interface pos 2/2/0 [RouterB-Pos2/2/0] link-protocol hdlc
# Assign an IP address to POS 2/2/0.
[RouterB-Pos2/2/0] ip address 12.1.1.2 24