2651 and 2 t1 configuration

[mlchris2]

I've been tasked with implementing a second PTP to into our company network infrastructure.

I have 2 PTP t1 from Qwest that will connect our corp office with our collocation site.

I have 2 Cisco 2651 with 2xDSU cards, a cisco for both locations.

Here is where I am lost.....

I dont know what type of config I need to implement or what even to call it. Can someone help me.

I can provide more information if needed.

thanks

Mark C.

Mark C.

 

[JOAMON]

What you are after is ppp multilink. Below is a sample config of how I have two T1 ptp setup. You will still need clock source internal on the serials on one side for clocking. Hope this points you in the right direction.

ip cef
!
interface Multilink1
ip unnumbered fastethernet0/1
ppp multilink
ppp multilink fragment disable
multilink-group 1
!
interface Serial0/0
no ip address
encapsulation ppp
no fair-queue
ppp multilink
multilink-group 1
!
interface Serial0/1
no ip address
encapsulation ppp
ppp multilink
multilink-group 1
!
ip classless
ip route xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx Multilink1

 

[hinesjrh]

Yes, Multilink ppp works great for bonding together more than one circuit. I have 6 Internet access T1's running to my 2651XM. I curently have a combination of single and dual WIC serial interfaces on the router. I'm pushing the limits on this hardware, but a replacement is in my future. Here's my example config.

controller T1 0/0
framing esf
linecode b8zs
channel-group 1 timeslots 1-24 speed 64
!
controller T1 0/1
framing esf
linecode b8zs
channel-group 1 timeslots 1-24 speed 64
!
controller T1 0/2
framing esf
linecode b8zs
channel-group 1 timeslots 1-24 speed 64
!
controller T1 0/3
framing esf
linecode b8zs
channel-group 1 timeslots 1-24 speed 64
!
!
!
interface Multilink48
ip address 59.129.219.62 255.255.255.252
ip access-group 102 in
ip access-group 101 out
ppp chap hostname group48
ppp multilink
ppp multilink group 48
ppp multilink fragment disable
!
interface FastEthernet0/0
ip address 59.129.254.254 255.255.255.0
ip access-group 115 in
ip access-group 115 out
no ip unreachables
speed 100
full-duplex
no keepalive
!
interface Serial0/0:1
no ip address
encapsulation ppp
no fair-queue
no cdp enable
ppp chap hostname group48
ppp multilink
ppp multilink group 48
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/1:1
no ip address
encapsulation ppp
no fair-queue
no cdp enable
ppp chap hostname group48
ppp multilink
ppp multilink group 48
!
interface Serial0/2:1
no ip address
encapsulation ppp
no fair-queue
no cdp enable
ppp chap hostname group48
ppp multilink
ppp multilink group 48
!
interface Serial0/3:1
no ip address
encapsulation ppp
no fair-queue
no cdp enable
ppp chap hostname group48
ppp multilink
ppp multilink group 48
!
interface Serial1/0
no ip address
encapsulation ppp
no ip mroute-cache
no fair-queue
service-module t1 timeslots 1-24
no cdp enable
ppp chap hostname group48
ppp multilink
ppp multilink group 48
!
interface Serial1/1
no ip address
encapsulation ppp
no ip mroute-cache
no fair-queue
service-module t1 timeslots 1-24
no cdp enable
ppp chap hostname group48
ppp multilink
ppp multilink group 48