Accton Technology VS4512DC manual Queue cos-map

Models: VS4512DC VS4512

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Command Line Interface

queue cos-map

This command assigns class of service (CoS) values to the priority queues

(i.e., hardware output queues 0 - 3). Use the no form set the CoS map to the default values.

Syntax

queue cos-mapqueue_id [cos1 ... cosn] no queue cos-map

queue_id - The ID of the priority queue.

Ranges are 0 to 4, where 4 is the highest priority queue.

cos1 .. cosn - The CoS values that are mapped to the queue ID. It is a space-separated list of numbers. The CoS value is a number from 0 to 7, where 7 is the highest priority.

Default Setting

This switch supports Class of Service by using four priority queues, with Weighted Round Robin queuing for each port. Eight separate traffic classes are defined in IEEE 802.1p. The default priority levels are assigned according to recommendations in the IEEE 802.1p standard as shown below.

Queue

0

1

2

3

 

 

 

 

 

Priority

1, 2

0, 3

4, 5

6, 7

 

 

 

 

 

Command Mode

Interface Configuration (Ethernet, Port Channel)

Command Usage

CoS values assigned at the ingress port are also used at the egress port.

This command sets the CoS priority for all interfaces.

Example

The following example shows how to change the CoS assignments to a one-to-one mapping:

Console(config)#interface ethernet 1/1

Console(config-if)#queue cos-map 0 0

Console(config-if)#queue cos-map 1 1

Console(config-if)#queue cos-map 2 2

Console(config-if)#exit

Console#show queue cos-map ethernet 1/1

Information of Eth 1/1

Traffic Class : 0 1 2 3 4 5 6 7

Priority Queue: 0 1 2 1 2 2 3 3

Related Commands

show queue cos-map(4-151)

4-150

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Accton Technology VS4512DC manual Queue cos-map

VS4512DC, VS4512 specifications

Accton Technology is renowned for its innovative networking solutions and has made significant strides in the realm of networking devices with its VS4512 and VS4512DC models. These devices cater primarily to the advanced needs of enterprise and data center environments, providing robust features and cutting-edge technologies that enhance network performance and reliability.

The Accton VS4512 is a high-performance Layer 2+ switch designed for top-of-rack applications in data centers. It boasts a compact 1U design, making it highly efficient for space-constrained environments. One of its standout features is the support for Ethernet Flow Control, which significantly reduces data loss during peak traffic loads. This is essential for businesses that rely on real-time data processing and streaming.

In terms of scalability, the VS4512 supports up to 48 Gigabit Ethernet ports, which can be expanded using four 10 Gigabit SFP+ uplink ports. This flexibility allows enterprises to customize their network architecture to meet their growing demands, whether they are scaling up for more users or enhancing service capabilities.

The VS4512DC, on the other hand, is the DC version tailored for data centers. It offers similar features as the VS4512 but includes enhancements for power efficiency and redundancy, ensuring that operations can continue smoothly even in power outage scenarios. The VS4512DC features dual power supplies and advanced thermal management, allowing for improved heat dissipation and lower operational costs.

Both models support advanced Layer 3 routing capabilities, enabling efficient traffic management across complex networks. They also incorporate features like VLAN segmentation and link aggregation, which facilitate better bandwidth utilization and improved network security.

Security is another cornerstone of these switches, with features such as DHCP snooping, port security, and storm control to mitigate risks associated with unauthorized access and network congestion.

In summary, the Accton Technology VS4512 and VS4512DC switches represent significant advancements in networking technology, equipped with a comprehensive set of features tailored for modern enterprise needs. With their scalability, robust performance, and focus on security, these switches are positioned to meet the challenges of today's fast-paced digital environments, making them a preferred choice for organizations aiming to enhance their network infrastructure.