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8.2 Congestion Management

IP RTP Priority

1. IP RTP Reservation IP RTP Reserve adds RTP traffic to the RSVP-reserved Queues of WFQ. These queues have a weight of 128, but RTP traffic will still have to compete with other RSVP flows for the bandwidth. Additionally, traffic that exceeds the configured RTP-BW will be treated as traffic …

CBWFQ

Class Based WFQ is configured using MQC. With CBWFQ, you use the same idea of Weighted Fair Queueing, only this time, instead of using the IP_Priority to assign a weight for each flow, like in Flow-Based WFQ, you can classify traffic on different criteria and then assign a weight for …

SPD – Selective Packet Discard

SPD is a feature that allows prioritisation of the Input Queue. Normally, the Input Queue only allows FIFO scheduling. With SPD enabled, 2 additional queues are created, the SPD Headroom and the SPD Extended Headroom. Layer 2 keepalives and IGP packets are allowed to be enqueued in any of the …

Legacy Congestion Management

1. Architecture 1.1 Ingress In the incoming direction,there is only one software queue that is always serviced using a FIFO algorithm. To only configuration available for the input queue is the size. You can specify it with: To see information about the hold-queue, use: You can enable Selective Packet Discard …