I have 2 P2P DS-3's and they are setup with CEF per-packet, I also have a few T-1's as a backup (MLPP), however I only get 30 MB transfer (peak) from the two DS-3's, looking at traffic they ARE load balancing but I never get the full bandwidth, any ideas?
There are several factors that may be involved in your situation. One factor is the type of traffic. If the traffic is TCP based packets then you are constrained by the TCP window size. This is sometimes referred to as the bandwidth delay product. You can send a certain amount of traffic and then you must wait for an acknowledgement before you can send more traffic. The longer the link and the more delay the lower the effective throughput.
You may also be impacted by out of order packets. When you specify per packet load share you greatly increase the possibility of out of order packets. The impact of out of order packets may vary depending on the application. But in many cases when there is an out of order packet the end stations must back up and retransmit to get packets in order. The impact of diminished throughput.
It may also depend on what is generating the traffic and what is receiving the traffic. It may be that one end or the other is constrained (perhaps by processing capability, or storage access requirements, or something similar) and is limiting the amount of throughput.
I assume that you specified per packet for its supposed more equal loading of the links. If that is the goal I believe that you might get better performance if you put both DS-3s into multilink PPP which will provide very equal load on the link and will eliminate the out of order packet issue.
Thanks Rick, but when I tried it on the DS-3's MLPP never comes up, looking at debugs it shows that:
Jul 25 23:38:16.834: Sey/y MLP: Request add link to bundle
Jul 25 23:38:16.834: Sey/y MLP: Adding link to bundle
Jul 25 23:38:16.834: Sey/y MLP: Bundle in different multilink group
Jul 25 23:38:16.834: Sey/y MLP: Link not added to bundle
The T-1's are also bundled with MLPPP but are on a different MLPP group all together, the DS-3 MLPPP never came up. I have a feeling that a router and a peer can only be in one group unless you use ppp auth chap?
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.