Per-group TCAM utilization telemetry, CLI, and syslog

We now support per- group TCAM utilization statistics. In network environments with high throuput and low latency, Packet Forwarding Engine errors, statistics, and status are critical. This feature provides per-group TCAM statistics and also triggers a system log when TCAM consumption reaches approximately 90% for a group. To stream statistics to a collector, subscribe with the sensor /junos/system/linecard/npu/memory/. To specify groups to export, use the existing Junos configuration statement set forwarding-options pfesensor npu-memory resource-list resource-list . If you do not specify groups, the default action exports all active groups in the system. You can use the Junos operational mode command show pfe filter hw summary to see group information, too.