[c-nsp] Cisco to Juniper LAG/LACP - Juniper not sending traffic over both links.

[Andrew Miehs]

Which hashing algorithm are the using? One based on MAC address will do exactly as you are describing.

Andrew

Sent from a mobile device

On 07/09/2012, at 6:58, Joseph Jackson <recourse at gmail.com> wrote:

> Hey networkers,
> 
> I have 3 sites connected to a service providers MPLS network.  Two of
> those sites (Dallas and LA) are configured as etherchannel/LACP ports
> with 2 1gig uplinks in them.  On our end we have Catalyst 6506-E
> switches the provider side is Juniper gear (I don't have model info).
> The issue I am seeing is that on our side we are sending traffic out
> of both interfaces and appear to be load balancing correctly.  The
> provider (juniper) side is only sending traffic inbound to us over 1
> of the links and not using the full etherchannel to load balance in
> coming bandwidth.  On the LA end the juniper routers are seeing two
> mac addresses learned on that etherchannel - one mac is the SVI and
> one mac is one of the member ports.  The Dallas side is only seeing
> one mac address.  The service provider is telling me that their
> hardware is working correctly and that the hashing algorithm on the
> juniper boxes is deciding that only one link should receive traffic.
> Anyone else see this issue or can provide any tips.
> 
> Thanks!
> 
> Joseph
> _______________________________________________
> cisco-nsp mailing list  cisco-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/