Thank you for your reply, Alex!
I understand that number of firewall filters MX can handle depend on reserved memory for firewall filter. But this space is flexible depending on the size of memory (total memory in case of MX80 or DPC memory with MX240-480-960 right?). Since this memory is shared for many resources: nexthop, counter, filter... there is not a fixed limitation of filter rules. Therefore, It is more difficult to monitor proactively, we should monitor the memory usage rather than filter rules limitation (in this case it is 256K?).
In MX (except MX80 series), issue this command to monitor memory resource (from O'Reilly Juniper MX Series) :
{master}
regress@halfpint> request pfe execute target fpc5 command "show jnh 0 pool usage"
SENT: Ukern command: show jnh 0 pool usage
GOT:
GOT: EDMEM overall usage:
GOT: [NH///////////////|FW///|CNTR////////|HASH/////|ENCAPS////|---------------]
GOT: 0 7.0 9.0 14.0 21.8 25.9 32.0M
GOT:
GOT: Next Hop
GOT: [***************************************************|--] 7.0M (98% | 2%)
GOT:
GOT: Firewall
GOT: [|--------------------] 2.0M (1% | 99%)
GOT:
GOT: Counters
GOT: [|----------------------------------------] 5.0M (1% | 99%)
GOT:
GOT:
However, I cannot find similar command in MX5/10/40/80. Any help?
Thank you so much,
Trung