User`s guide

XSR User’s Guide 199
Chapter 9 ISDN Configuration
Configuring Integrated Services Digital Network (ISDN)
The following T1 example adds a dialer pool and group, and two dialer strings to
the node’s Dialer 0 port. It also sets all 23 B-channel timeslots, adds two
prioritized pool members, and maps the T1 NIM card to the 1/0/0:23 D-channel
sub-interface. You can add map class, dialer list and ACL commands not shown.
XSR(config)#interface dialer 0
XSR(config-if<D0>)#ip address 1.1.1.1 255.255.255.0
XSR(config-if<D0>)#encapsulation ppp
XSR(config-if<D0>)#dialer string 17574231234 class rem node1
XSR(config-if<D0>)#dialer string 17574235678 class rem node2
XSR(config-if<D0>)#dialer pool 1
XSR(config-if<D0>)#dialer-group 1
XSR(config-if<D0>)#no shutdown
XSR(config)#controller t1 1/0/0
XSR(config-controller<T1-1/0/0>)#pri-group
XSR(config-controller<T1-1/0/0>)#no shutdown
XSR(config)#controller 1/0/0:23
XSR(config-controller<T1-1/0/0:23>)#
XSR(config-controller<T1-1/0/0:23>)#isdn switch-type primary-ni
XSR(config-controller<T1-1/0/0:23>)#isdn bchan-number-order ascending
XSR(config-controller<T1-1/0/0:23>)#dialer pool-member 1 priority 100
XSR(config-controller<T1-1/0/0:23>)#dialer pool-member 1 priority 50
Optionally, the following E1 commands set the Central Office switch type and
add prioritized pool members to E1 1/0/0:15 D-channel sub-interface:
XSR(config-controller<E1-0/0:15>)#isdn switch-type primary-net5
XSR(config-controller<E1-0/0:15>)#isdn bchan-number-order
XSR(config-controller<E1-0/0:15>)#no shutdown
XSR(config-controller<S1-0/0:15>)#dialer pool-member 1 priority 100
XSR(config-controller<S1-0/0:15>)#dialer pool-member 1 priority 50
Be aware that the isdn bchan-number-order command forces the PRI
interface to make outgoing calls in ascending or descending order. The
command is recommended only if your service provider requests it to lessen
the chance of call collisions.
The
pri-group command enables ISDN and configures all timeslots to map
to channel groups on the PRI NIM card.