Hi Andy,
  Thanks for your reply. 
  1) Can u send me a sample configuration of what u are saying with a brief 
explanation of your scenario?
  2) You are giving the explanation for equal cost paths. However in my case 
there are two unequal cost paths. So my question still how can u do that in 
using unequal cost paths ?
  3) Please explain when u say the following:
  "What you will need to do is create 2 different RSVP Signaled LSPs
 towards the router which you want to "add more traffic", then you need to  
export these 2 LSPs in OSPF (not turn OSPF off!) so that the routing protocol  
can see and use these 2 new paths. In the end, you will have 2 equals paths 
going in 1 direction, and a
 single path in the other.  If you need to move more traffic, then simply add a 
 3rd, 4th, etc LSP."
  4) The above discussion is for when we are doing work within MPLS. Now in my 
case my intended traffic (Voice) does not use MPLS(however MPLS is enabled but 
for some other traffic like sigtran and O/M). OSPF is there as IGP and i need 
to load balance my intended traffic using the unequal cost path. I have an idea 
taht i create 2 x static GRE tunnels from one end to the other. My question can 
GRE tunnel override OSPF as that would be purely static routing and whatever 
goes with the tunnels would be just IP-payload.
   
  regards,
  HA.

Andy Lamontagne <[EMAIL PROTECTED]> wrote:
  Hi Hamid,

To expand on Chris's explanation, ECMP is Equal Cost Multi-Path, which allows 
for the use of 2 (or more) equal cost path at the same time; Load balancing the 
traffic between the different paths. As Chris also mentioned, this load 
balancing is done per flow and not per packet, so you don't get any reordering 
of packets. 

What you will need to do is create 2 different RSVP Signaled LSPs towards the 
router which you want to "add more traffic", then you need to export these 2 
LSPs in OSPF (not turn OSPF off!) so that the routing protocol can see and use 
these 2 new paths. 

In the end, you will have 2 equals paths going in 1 direction, and a single 
path in the other.  If you need to move more traffic, then simply add a 3rd, 
4th, etc LSP.

Please let me know if you need further explanation/configuration samples. 

-Andy

  On 11/8/07, Hamid Ahmed <[EMAIL PROTECTED]> wrote:   Hi,
  Its LAyer 3 load balancing. The traffic intended for load-balancing does is 
on pure IP with OSPF running and having unequal cost paths 

  regards,
  Salman.

GAY Samuel <[EMAIL PROTECTED]> wrote:
  Hi,

Which kind of load balancing do you want to do ? layer 3 ? layer 4 ?
Are you on a MPLS network ? 

Regards,
Samuel


Hamid Ahmed a écrit :
> Hi Everyone,
>
> CAn anyone suggest me how to load balancing between juniper routers for 
> unequal cost paths.
>
> BR//
> HA
>
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