Class of Service
-
On-chip buffer (OCB) with explicit congestion notification (ECN) (PTX10002-36QDD )—On PTX10002-36QDD routers, virtual output queues (VOQs) with a buffer size equal to or less than 40 microseconds, at the configured buffer rate, are always on-chip. When you have a VOQ with an OCB and then configure an ECN profile for the queue, the queue remains on-chip after the system reaches 100% ECN marking probability at the defined queue occupancy. Keeping the queue on-chip eliminates the need to access slower external memory. This approach is ideal for low-latency, high-throughput applications.