In reply to a post by helix_quazer:

I have 1 WIC card which is a VDSL compatible EHWIC, the other 2 lines are just plugged into spare ethernet ports on the 2911. The config is correct as you have described but I have a separate set of login credentials for each line with separate diallers.

Ok so this is your problem. You will need two more VDSL EHWICs and a single login for all 3 lines. Then it will bond via MLPPP.

Is there any other way to bond other than MLPPP? I still think the set up I have does allow bonding of speeds but I can't find any information on why it woudn't

So 14 days later it looks very much like I was right. Thank you Flash.

How can all 3 lines bond if the radius sees them as 3 unique authentication attempts.

How can you get two of the lines to work when they are plugged into standard Ethernet ports.

The SP will be able to bond at their end. There are several out there that can do this but it ain't cheap.

You need a single authentication, a framed IP and 2 extra EHWICs.

In reply to a post by helix_quazer:

Is there any other way to bond other than MLPPP? I still think the set up I have does allow bonding of speeds but I can't find any information on why it woudn't

You need to provide us a link to what you have.

There are many ways to use multiple lines to carry traffic, only some of them should be called "bonding". BT were offering "Sharedband" at one point, which uses multiple lines or broadband technologies (potentially via multiple ISPs) to carry data between a dedicated CPE and a server at the ISP. MLPPP gives a single session with a single IP to one ISP. Various multi-session parallel load balancing solutions exist. Some VPN kit will split traffic over multiple paths and recombine at the other end.

You can load balance over 3 separate sessions it wont make a different whether they are bonded or not, all you need is the same AD configured to each route. Plugging into the LAN ethernet ports of a router are exactly the same as plugging into a WIC card as you still configure an ATM and a dialler per line.

I tend to be a bit frank at times but the best advice I can give at this stage is that you might want to talk to either a broadband provider that offers a proper bonded service and can support configuration at your end or one who supplies the kit in a managed form.

If you have a requirement to use a particular Cisco device then the good providers may well be able to advise on the set-up and configuration, but that may come at a price.

You've gone from talking about PPP level bonding to talking about load balancing across multiple sessions.

If you're using per-destination load balancing this would explain why you are pegged to a single line's performance. Disable route caching on your LAN interface to switch to per-packet.

besides I doubt bonding 3 FTTC lines is going to work with Sharedband, unless you accept that the max speed across all three FTCC lines using their Power Routers is 80 Mbps, which would equate to max speed of each FTTC being capped att 26.6 Mbps, worse still if you wanted 4 x FTTC lines as I do, the max speed on each would be throttled down to 20 because the router hardware is not up to it

http://uk.store.sharedband.com/index.php?routerinfo=Y

cost wise things start to mount up as well, you need a Power Router for each FTTC line at £149 ex vat, and the monthly line bonding charge of £20 for each FTTC which is capped at 2000 Gbytes data transfer a month for all 4 lines

http://www.sharedband.com/solutions/service-pricing/