Bonding 2 T1s

[Poloboy]

Hi,
I just ordered 2 T1s for our company. Now i'm looking for hardware to bond the 2 T1 together. Can anyone recommand the right hardware for bonding the two lines. I like to use cisco 1721. I don't know if that will do it. Thankyou!

 

[BuckWeet]

That will work.. Enable IP cef, do 2 static routes with equal weight to the ISP..


BuckWeet

 

[routerman]

Here is an example from one I set up recently, uses CEF per packet load sharing.

IP CEF

interface Loopback0
ip address 213.nn.nnn.138 255.255.255.252
!
!
interface Serial0/0
ip unnumbered Loopback0
ip load-sharing per-packet
!
!
interface Serial0/1
ip unnumbered Loopback0
ip load-sharing per-packet
!

ip route 0.0.0.0 0.0.0.0 Serial0/0
ip route 0.0.0.0 0.0.0.0 Serial0/1

Works a treat, gives me equal cost load sharing, only one registered IP address required, low CPU overhead.

 

[308win]

See if your ISP can give you multilink, if so it is simple:

I have this working on a (old) 2611 that runs at about 15-30% depending on the load. I'm not sure what it will do on your 1721. ios 12.2.16c.

interface Multilink1
ip address x.y.z.102 255.255.255.252
ip access-group comingIn in
load-interval 30
no cdp enable
ppp multilink
no ppp multilink fragmentation
multilink-group 1
!
!
interface Serial0/0
bandwidth 1536
no ip address
encapsulation ppp
no ip mroute-cache
load-interval 30
no cdp enable
ppp multilink
multilink-group 1
!
interface Serial0/1
bandwidth 1536
no ip address
encapsulation ppp
load-interval 30
no fair-queue
no cdp enable
ppp multilink
multilink-group 1

 

[Poloboy]

Thankyou everyone, I had switch Cisco 1721 to Cisco 2611. I had used the above configurations. Hopefully it goes well, I'll let you guys know if it works. Thanks a million to all you guys.