[j-nsp] Problems with Link Aggregation

[Filippo Cugini]

Hi,

we configured the link-aggregation on two switches EX3200 with JUNOS 
software 10.0R4.7.
We configured the aggregated interface (ae0), containing three ge 
interfaces (ge-0/0/12, ge-0/0/14, ge-0/0/16).
At the operational level, the state of the aggregated interface (show 
interfaces ae0 extensive) shows that the link is up at 3000mbps.

However, when we send traffic on the aggregated link, just one ge works, 
and we experience packet loss when we exceed the throughput of 1000mbps.
Indeed, the statistics of all interfaces show that only the ge-0/0/12 is 
utilized to forward the data traffic, while the other two interfaces 
send and receive only signaling packets.

Any suggestions?

This is our one-side configuration:


chassis {
     aggregated-devices {
         ethernet {
             device-count 1;
         }
     }
}

interfaces {
     ge-0/0/12 {
         ether-options {
             802.3ad ae0;
         }
     }
     ge-0/0/14 {
         ether-options {
             802.3ad ae0;
         }
     }
     ge-0/0/16 {
         ether-options {
             802.3ad ae0;
         }
     }

...

     ae0 {
         aggregated-ether-options {
             minimum-links 2;
             lacp {
                 active;
             }
         }
         unit 0 {
             family inet {
address 10.255.255.2/30;
             }
         }
     }

}