Cisco N7K-C7009 Manuel d'utilisateur télécharger pdf (Page 43)

Presentation_ID

Cisco Public

BRKARC-3470 Cisco Public

Buffering, Queuing, and Scheduling

• Buffering – storing packets in memory

‒ Needed to absorb bursts, manage congestion

• Queuing – buffering packets according to traffic class

‒ Provides dedicated buffer for packets of different priority

• Scheduling – controlling the order of transmission of buffered packets

‒ Ensures preferential treatment for packets of higher priority and fair treatment for packets of

equal priority

• Nexus 7000 uses queuing policies and network-QoS policies to define buffering,

queuing, and scheduling behaviour

• Default queuing and network-QoS policies always in effect in absence of any user

configuration

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Cisco N7K-C7009 Manuel d'utilisateur Page 43