ポーズコントロールカウンターとは?

The Pause control counter indicates the number of times the router requests another router to slow the traffic. 例えば, two routers, Router A and Router B, are connected through a link with flow control enabled. If Router B faces a traffic burst, Router B sends a Pause output packet to inform Router A to slow the traffic because the link is oversubscribed. At that time, Router A receives a Pause input packet that informs it of the request sent by Router B. Pause output / input packets are not a problem or an error. They are simply flow control packets between two devices.