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Alcatel-Lucent 7210 SAS Series User Manual

Alcatel-Lucent 7210 SAS Series
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QoS Policies
7210 SAS D, E, K OS Quality of Service Guide Page 41
Queue Parameters
This section describes the queue parameters provisioned for queues used in service ingress policy,
service egress policy, access egress policy, network qos policy and network queue policy.
NOTE: Not all 7210 platforms support queues for all the above policies. In addition, the queue
parameters support available varies across different platforms. See platform specific QoS
overview sections above and the chapter following to know the support available on different
platforms.
The queue parameters are:
• Queue ID on page 45
• Committed Information Rate on page 45
• Peak Information Rate on page 46
• Adaptation Rule for Queues on page 47
• Committed Burst Size on page 48
• Queue – Ingress Profile Assignment on 7210 SAS-K on page 51
• Queue – Weight and Priority on 7210 SAS-K on page 51
• Queue Counters on page 51
Queue ID
The queue ID is used to uniquely identify the queue. The queue ID is only unique within the
context of the QoS policy within which the queue is defined.
On some 7210 platforms, the queue-id is not user configurable. It is automatically assigned to
queues by software.
Committed Information Rate
The committed information rate (CIR) for a queue performs two distinct functions:
1. Minimum bandwidth guarantees — Egress queues CIR setting provides the bandwidth
which will be given to this queue as compared to other queues on the port competing for a
share of the available link bandwidth. The queue CIR does not necessarily guarantee band-
width in all scenarios and also depends on factors such as CIR oversubscription and link port
bandwidth capacity. For each packet in an queue, the CIR is checked with the current trans-

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Alcatel-Lucent 7210 SAS Series Specifications

General IconGeneral
BrandAlcatel-Lucent
Model7210 SAS Series
CategorySwitch
LanguageEnglish

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