When looking at the output of


# show capacity

Node: node2

===================== ========= ========== =======
 Resource              Entries   Capacity   Usage
===================== ========= ========== =======
 access-policy-table       518       2048   25.3%
 action-pool             16277     287590   5.7%
 arp-table                   3      62359   0.0%
 fib-table                1862      16340   11.4%
 flow-table               9244     127455   7.3%
 source-tenant-table        11       2048   0.5%

Lower than expected numbers are seen, when compared to another router with the same CPU/Memory

If a SSR Router CPU or Memory is upgraded after installation, the initialization needs to be run.

As Documented:

https://www.juniper.net/documentation/us/en/software/session-smart-router/docs/ts_forwarding_resource_pools/

initialize128t needs to be run after resource changes to adjust capacity in a maintenance window.

systemctl stop 128T

initialize128t