[j-nsp] J2300 T1 Load balancing

Phil Bedard philxor at gmail.com
Wed Apr 2 16:06:54 EDT 2008


I don't know that much about the J2300 packet engines, but on the IP2  
in the other platforms, the "load-balance per-packet" is a bit of a  
misnomer.  With that configured, it will still forward packets to an  
egress interface based on L3/L4 hashing, as opposed to actually doing  
per-packet load balancing.  The configuration looks fine to me, so  
that's probably the case with the J2300 as well.

Phil

On Apr 2, 2008, at 3:10 PM, Peder @ NetworkOblivion wrote:

> I have a J2300 running 8.3R1.5 and I am trying to do packet by packet
> load balancing over two T1's. I tried the config below that I thought
> would work and it doesn't seem to load balance.  If I do a big upload,
> one T1 gets flooded and the other is virtually empty.  Any ideas  
> what I
> did wrong?  The next-hop IPs are correct.  I do see traffic on both
> links, just not anywhere near load balanced outbound.  Note that I
> cannot do MLPPP or MLFR, so don't suggest it, and I am not trying to
> load balance inbound.  I am trying to balance outbound from my J2300.
> Thanks.
>
> routing-options {
>     static {
>         route 0.0.0.0/0 next-hop [ 192.168.1.1 192.168.2.1 ];
>     }
>     forwarding-table {
>         export load-balance-default;
>     }
> }
> policy-options {
>     policy-statement load-balance-default {
>         term default-route {
>             from {
>                 route-filter 0.0.0.0/0 exact;
>             }
>             then {
>                 load-balance per-packet;
>             }
>         }
>     }
> }
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