[j-nsp] Limit of 126 source/destination classes

Kevin Day toasty at dragondata.com
Wed Mar 8 07:24:27 EST 2006

Is there any way to create more than 126 source/destination classes?

We're using one source/destination class pair per ASN we peer with on  
an IX, like this:

term from-XXXX {
     from neighbor;
     then {
         destination-class dst-XXXX;
         source-class src-XXXX;

Then we graph the SNMP class counters per AS, to generate traffic  
graphs. I realize that this method isn't 100% accurate to generate  
stats for inbound traffic - it's assuming that inbound traffic came  
from a neighbor if we would have sent outbound traffic to them, but  
in our case that's right nearly 100% of the time.

The problem is that we're about to hit the 126 limit. Is there any  
trickery we can do with logical routers, instances or anything else  
to get more than one group of 126 per physical interface? If not, is  
there any way the 126 limit could be raised? Or a better way of doing  
this, without a Monitoring/AS PIC? (out of slots, so they're not an  

More information about the juniper-nsp mailing list