Bonding 2 T1s running Frame Relay

[Hieu Cao]

Our internet T1 is almost maxed out, and we're looking into adding another T1 from a different carrier. Is it possible to bind 2 T1s running Frame Relay, encapsulation HDLC and terminated in the same router?

Thanks.

[paolo bevilacqua]

Do you use the T1 for internet? There is bonding to do, you will just have a second ISP and can send some destination off one T1 or balance equally on both. That requires that you run NAT on the router itself.

[Hieu Cao]

Thank you for your response.

Yes, we've a T1 used for Internet. Is it possible that you can explain it in more detailed as I am not quite clear what you're referring to.

Originally, I thought that I would need to use MPPP or BGP to bind the T1s together. But I don't think that MPPP would work since I am running FR, encapsulation HDLC.

Thanks for your time and input.

hieu

[mohammedmahmoud]

Hi,

Since they are 2 providers, then you can't bond the T1s anyway, you'll have to then do load sharing or balancing between the 2 links.

HTH, please do rate all helpful replies,

Mohammed Mahmoud.

[Hieu Cao]

Thanks, Mohammed. Silly question to ask..but What protocol should I be using to do load-sharing between the 2 T1s from 2 different ISPs?

If the 2nd T1 is coming from the same ISP, what should I use to bind the 2 T1s?

Thanks for your time.

hieu

[mohammedmahmoud]

Hi,

Load sharing shall be done in layer 3 (routing wise), in the case of 2 ISPs.

If both T1s were from the same ISP you can do MPPP to bond them.

HTH, please do rate all helpful replies,

Mohammed Mahmoud.

[Hieu Cao]

Thank you all for your reponse.

hieu

[paolo bevilacqua]

Thank you but mine was a confusing answer.I wrote "there is bonding to do" when in fact I meant to say the opposite.

Will write slower next time.

[kerek]

Hi,

If both FR link will reside on the same router you can use multilink FR Multilink Frame Relay (FRF.16) so the load sharing can be take place on layer2. Here is a link to see how it works:

http://www.cisco.com/en/US/products/sw/iosswrel/ps1829/products_feature_guide09186a0080087079.html

Or if your provider do not support it than the "old fashioned" layer3 load balancing is your choice.

Please rate if helps

Kriszti?n

[Hieu Cao]

Hello Krisztian,

Thank you very much for the input and the link. It's very helpful.

hieu