Load sharing across multiple interfaces

[Ramakrishnan Durairajan]

Hello All,

I created a simple topology in GENI (http://www.geni.net/) and it looks like the following:

A --- Router_1 === Router_2 --- B (Note that there are two links between routers 1 and 2.)

I am trying to load share the traffic across both the links, i.e., between the routers, when the traffic flows from A to B. To do this, I used the following commands at router 1.

sudo modprobe sch_teql 

sudo tc qdisc add dev eth1 root teql0 

sudo tc qdisc add dev eth3 root teql0 

sudo ip link set dev teql0 up

But the load sharing is not happening and packets are always going via eth1 of Router_1. Attached is the rspec that I am using to generate the (above) topology. Any idea what I am missing?

[Ramakrishnan Durairajan]

I know that the above procedure is more of a hack. Is there an alternative way to load share the traffic between routers 1 and 2? 

[Vicraj Thomas]

Hello Ramakrishnan,

Have you been able to get this to work? Did you assign IP addresses to
the two teql interfaces you created on Router 1 & 2 (they need to be on
the same subnet)?

See http://lartc.org/howto/lartc.loadshare.html for an example of how
this is done.

Let us know if you were able to get this to work.

Best wishes,

< Vic

> --
> GENI Users is a community supported mailing list, so please help by
> responding to questions you know the answer to.
>
> If this is your first time posting a question to this list, please
> review
> http://groups.geni.net/geni/wiki/GENIExperimenter/CommunityMailingList
> ---
> You received this message because you are subscribed to the Google
> Groups "GENI Users" group.
> To unsubscribe from this group and stop receiving emails from it, send
> an email to geni-users+...@googlegroups.com
> <mailto:geni-users+...@googlegroups.com>.
> For more options, visit https://groups.google.com/d/optout.

[Ram Durairajan]

Thanks Vic. I got this working. Initially, it wasn't working because of the Linux router implementation that I was using. Instead of the Linux router, I tried the same with quagga and it worked right away.

Ram

> --- You received this message because you are subscribed to a topic in the Google Groups "GENI Users" group.
> To unsubscribe from this topic, visit https://groups.google.com/d/topic/geni-users/y8fuUtkQx3k/unsubscribe.
> To unsubscribe from this group and all its topics, send an email to geni-users+...@googlegroups.com.