Nortel Networks 8000 - Manual (Page 71)

4 POS and CPOS interface configuration
Nortel Secure Router 8000 Series
Configuration -WAN Access
No. Procedure
6 Configuring check word length of CRC
7 Configuring MTU
8 Checking the configuration
4.2.2 Configuring link layer protocol
Do as follows on the routers:
Step 1 Run:
system-view
The system view appears.
Step 2 Run:
interface pos interface-number
The POS interface view appears.
Step 3 Run:
link-protocol { ppp | hdlc }
The command configures the link layer protocol of the POS interface.
By default, the link layer protocol of the POS interface is PPP.
—End
4.2.3 Configuring clock mode
Do as follows on the routers:
Step 1 Run:
system-view
The system view appears.
Step 2 Run:
interface pos interface-number
The POS interface view appears.
Step 3 Run:
clock { master | slave }
The command configures the clock mode of the POS interface.
POS Interface supports the following two clock modes:
• Master clock mode uses internal clock signal.
• Slave clock mode uses line clock signal.
4-10 Nortel Networks Inc. Issue 5.3 (30 March 2009)