100 % of the the first link bandwidth is used, but only 20 % of the second one.
The reason is that there is only a few boxes on the lan, and only one do ftp transfert. So the transfert is limited to the bandwidth of a link. Due to the low number of boxes, i can't have a fair load balancing.
As i can't use MLPPP to aggregate the two links (my CPE router is connected to two different PE), i have to use CEF per packet load balancing.
I am aware of the drawback of a such method: some traffics like VOIP don't support re-ordered packets.
What you have run into is the inherent problem with using load-sharing over multiple links - you only get performance approaching reasonable load-sharing when you have a large number of flows. I'm afraid that is something you have to live with if you can't do MLPPP.
Seeing that you are using a TCP-based application, I would strongly advise against using per-packet load balancing. The re-ordering risks of that would result in much worse performance, in my opinion. Give it a shot if you really want to but I think you'll run into problems.
As I said, I believe it's something you'll just have to live with.
Hope that helps - pls do remember to rate posts that help.
In this situation where the number of destinations is small and especially where a single station is generating a large amount of traffic because of FTP I believe that Policy Based Routing might be helpful. It would be possible to configure the routing such that one link was preferred over the other, so most traffic would use that link. Then configure PBR so that the FTP uses the other link. This will give better utilization of both links and will allow either link to carry all the traffic if either of the links suffers a failure.
I agree with what Paresh has said about the impact of out of order packets when per packet load share is configured. The increase in traffic on the links due to TCP retransmission may offset the benefits of more equal link utilization.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.