User manual

Nortel Secure Router 8000 Series
Configuration -WAN Access
Issue 5.3 (
30 March 2009) Nortel Networks Inc. i
Contents
4 POS and CPOS interface configuration.................................................................................4-1
4.1 Introduction...................................................................................................................................................4-2
4.1.1 SONET.................................................................................................................................................4-2
4.1.2 SDH .....................................................................................................................................................4-2
4.1.3 POS......................................................................................................................................................4-6
4.1.4 CPOS ...................................................................................................................................................4-6
4.2 Configuring POS interfaces ..........................................................................................................................4-9
4.2.1 Establishing the configuration task ......................................................................................................4-9
4.2.2 Configuring link layer protocol..........................................................................................................4-10
4.2.3 Configuring clock mode.....................................................................................................................4-10
4.2.4 Configuring overhead bytes...............................................................................................................4-11
4.2.5 Configuring frame format..................................................................................................................4-11
4.2.6 Configuring scramble function ..........................................................................................................4-12
4.2.7 Configuring check word length of CRC ............................................................................................4-12
4.2.8 Configuring MTU..............................................................................................................................4-13
4.2.9 Checking the configuration................................................................................................................4-14
4.3 Configuring STM-1 CPOS interfaces .........................................................................................................4-15
4.3.1 Establishing the configuration task ....................................................................................................4-15
4.3.2 Configuring clock mode.....................................................................................................................4-15
4.3.3 Configuring frame format..................................................................................................................4-16
4.3.4 Configuring overhead bytes...............................................................................................................4-17
4.3.5 Configuring AUG multiplexing route................................................................................................4-17
4.3.6 Checking the configuration................................................................................................................4-18
4.4 Configuring E1/T1 channels of the CPOS interface ...................................................................................4-18
4.4.1 Establishing the configuration task ....................................................................................................4-18
4.4.2 Creating E1/T1 channels....................................................................................................................4-19
4.4.3 Configuring frame format..................................................................................................................4-20
4.4.4 Configuring clock mode.....................................................................................................................4-21
4.4.5 Disabling or enabling the E1/T1 channel...........................................................................................4-21
4.4.6 Checking the configuration................................................................................................................4-22
4.5 Configuring synchronous serial interfaces ..................................................................................................4-23
4.5.1 Establishing the configuration task ....................................................................................................4-23