!         
interface Multilink1
 description Bonded T1 interface
 ip address 172.16.255.1 255.255.255.252
 ppp multilink
 ppp multilink fragment disable
 ppp multilink group 1
!
interface Serial0/0
 no ip address
 encapsulation ppp
 tx-ring-limit 26
 tx-queue-limit 26
 no keepalive
 no fair-queue
 service-module t1 clock source internal
 service-module t1 timeslots 1-24
 ppp multilink
 ppp multilink group 1
!
interface Serial0/1
 no ip address
 encapsulation ppp
 tx-ring-limit 26
 tx-queue-limit 26
 no keepalive
 no fair-queue
 service-module t1 clock source internal
 service-module t1 timeslots 1-24
 ppp multilink
 ppp multilink group 1
!