- Enterasys Security Router User's Guide

Configuring the WAN
3-4 Managing LAN/WAN Interfaces
• Clocking speed - For Sync interfaces, an external clock must be provided. Acceptable clock
values range from 2400 Hz to 10 MHz. For Async interfaces, the clock is internally generated
and can be set to the following values using
clock rate:
– 2400 Kbps
– 4800 Kbps
– 7200 Kbps
– 9600 Kbps (default)
– 14400 Kbps
– 19200 Kbps
– 28800 Kbps
– 38400 Kbps
– 57600 Kbps
– 115200 Kbps
• Statistics - all MIB-II interface statistics are supported.
• Clear commands such as
clear counters serial and clear interface serial facilitate
interface troubleshooting.
• Async mode commands such as
databits, stopbits, and parity provide configuration of the
serial line.
• Maximum Receive Unit (MRU) is 1518 bytes (including CRC).
Configuring the WAN
Enter the following commands to configure either a synchronous T1 or asynchronous Serial
interface. For more detailed information on the commands used here, refer to the XSR CLI
Reference Guide and other chapters in this manual.
The following example configures the synchronous T1 controller on NIM 1, port 0 named Acme T1
with the default values of ESF framing and B8ZS line encoding. It also specifies channel group 1
with mapped timeslots 1-5, 8 and 9, assigns the local IP address 192.168.1.1 to the channel group
and sets PPP encapsulation.
XSR(config)#controller t1 1/0
XSR(config-controller<T1/0>)#description T1 “Acme T1”
XSR(config-controller<T1/0>)#framing esf
XSR(config-controller<T11/0>)#linecode b8zs
XSR(config-controller<T11/0>)#channel-group 1 timeslots 1-5,8,9
XSR(config-controller<T11/0>)#no shutdown
XSR(config)#interface serial 1/0:1
XSR(config-if<S1/0:1>)#ip address 192.168.1.1 255.255.255.0
XSR(config-if<S1/0:1>)#encapsulation ppp
XSR(config-if<S1/0:1>)#no shutdown