To bundle 2 ore more serial connection or BRI / PRI channels, multilink PPP can be used. The following example configurations will connect R1 and R2 by using a multilink interface to bundle the 2 serial connections (serial 0/0 and 0/1).
Configuring PPP multilink:
PPP multilink configuration example:
R1:
hostname R1
!
username R2 password 0 cisco
!
interface Multilink1
ip address 10.10.10.1 255.255.255.0
ppp multilink
ppp multilink group 1
!
interface Serial0/0
no ip address
encapsulation ppp
serial restart-delay 0
clock rate 2016000
ppp authentication chap
ppp multilink
ppp multilink group 1
!
interface Serial0/1
no ip address
encapsulation ppp
serial restart-delay 0
clock rate 2016000
ppp multilink
ppp multilink group 1
R2:
hostname R2
!
username R1 password 0 cisco
!
interface Multilink1
ip address 10.10.10.2 255.255.255.0
ppp multilink
ppp multilink group 1
!
interface Serial0/0
no ip address
encapsulation ppp
serial restart-delay 0
ppp authentication chap
ppp multilink
ppp multilink group 1
!
interface Serial0/1
no ip address
encapsulation ppp
serial restart-delay 0
ppp authentication chap
ppp multilink
ppp multilink group 1
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