The run show interface stm command displays the total STM resources that are available and how many STM entries are in use.
It is allowed to configure the firewall filter rule only when there are available STM resources.
run show interface stm
• Show the information of STM resources.
The item number of firewall egress tables is used for describing STM resources of CoPP. By default, the value of number of firewall egress tables in Stm resource in use: is 21 as have been used by the default CoPP configurations.