18-16
ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter18 Configuring Interfaces
Configuring T1/E1 Trunk Interfaces
E1 port adapter:
•Framing = g.832 adm
•Line coding = HDB3
•Cell payload scrambling = off
•Clock source = network-derived
•Auto-ferf on LOS = on
•Auto-ferf on OOF = on
•Auto-ferf on red = on
•Auto-ferf on LCD = on
•Auto-ferf on AIS = on
Manual T1 and E1 Interface Configuration
To manually change any of the default configuration values, perform the following steps, beginn ing in
global configuration mode:
Command Purpose
Step1 Switch(config)# network-clock-select priority
atmca rd/subcard/port
Configures the network-derived clock.
Step2 Switch(config)# interface atm card/subcard/port
Switch(config-if)#
Specifies an ATM interface and enters interface
configuration mode.
Step3 Switch(config-if)# atm uni [side {private |
public}] [type {network | user}] [version {3.0 |
3.1 | 4.0}]
Modifies the ATM interface side, type, or version.
Step4 Switch(config-if)# atm maxvpi-bits max-vpi-bits Modifies the maximum VPI bits configuration.
Step5 Switch(config-if)# atm maxvci-bits max-vci-bits Modifies the maximum VCI bits configuratio n.
Step6 Switch(config-if)# framing {esfadm | esfplcp |
sfadm | sfplcp}
Switch(config-if)# framing {crc4adm | crc4plcp
| pcm30adm pcm30plcp}
Modifies the T1 framing mode.
Modifies the E1 framing mode.
Step7 Switch(config-if)# linecode {ami | b8zs}
Switch(config-if)# linecode {ami | hdb3}
Modifies the T1 line coding.
Modifies the E1 line coding.
Step8 Switch(config-if)# scrambling {cell-payload |
sts-stream}
Modifies the scrambling mode.
Step9 Switch(config-if)# clock source {free-running |
loop-timed | network-derived}
Modifies the clock source.
Step10 Switch(config-if)# lbo {0_110 | 110_220 |
220_330 | 330_440 | 440_550 | 550_600 | gt_600}
Modifies the line build-out.
Step11 Switch(config-if)# auto-ferf {ais | lcd | los | oof |
red}
Modifies the auto-ferf configuration.