Nortel Networks 8000 - Manual (Page 58)

Nortel Secure Router 8000 Series
Configuration -WAN Access
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
Issue 5.3 (30 March 2009) Nortel Networks Inc. i