What the XGS 136's coprocessor says about the traffic it forwards, measured, 2026-10-19¶
The XGS 3300's coprocessor sends the host the counts of every connection it forwards, and of every port, as control messages on tag 254 - which the driver now reads and gives to pf and the interfaces (hw-counters-2026-10-19.md). The XGS 136 is as blind to its own hardware traffic as the XGS 3300 was: once a connection is in hardware, pf's state and the interface counters stop growing. This page is the first step of the same work on the XGS 136: does its coprocessor send such messages at all, and in what form.
The whole page, with how it was taken and what it does not show: What the XGS 136's coprocessor says about the traffic it forwards, measured, 2026-10-19.
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