Allied Telesis x900-48 series manual Full QoS scenario 1 tiered services for a single customer

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Full QoS scenario 1: tiered services for a single customer

Full QoS scenario 1: tiered services for a single customer

In this section, we will build up a relatively complex QoS configuration to support a scenario requiring quite precise control over the traffic passing through the switch.

The scenario is an ISP providing connectivity for a customer, and offering different levels of service for different types of traffic.

The customer is connected to port 1 of the switch, and the uplink to the ISP is on port 24 of the switch.

ISP

Port 24

uplink to the ISP

Customer LAN

XStep 1—Set the egress bandwidth limiting

The service offered by the ISP puts a limit on the total bandwidth of traffic that the customer can send to the ISP.

This is achieved by setting a maximum bandwidth on the uplink port:

set switch port=24 egresslimit=<limit>

XStep 2—Give better service to some types of traffic than to others

The deal offered to the customer is that their traffic will be treated as belonging to three categories, and each category of traffic will be given a different level of service:

Gold traffic will be limited to, say, 2Mbps, but the ISP will guarantee delivery of the traffic across their network, with a low latency.

Silver traffic will not have a particular limit (i.e. it can burst up to the max egress bandwidth of the uplink port), but when congestion occurs, it will be throttled back in favour of Gold traffic, if necessary. The ISP will guarantee to deliver up to, say 5Mbps of Silver traffic across its network 90% of the time, but will give no guarantees about latency.

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Contents Introduction AlliedWareTM OSExample 1-1 Setting the egress limit of a switch port Setting the egress rate3 AlliedWare OS How To Note QoS configuration 4 AlliedWare OS How To Note QoS configuration 5 AlliedWare OS How To Note QoS configuration Example 1-5 Setting the maximum bandwidth limit of VLANs Port Setting the priority on a packet8 AlliedWare OS How To Note QoS configuration Example 2-4 Setting the Layer 3 TOS/DSCP priority per Vlan Setting the egress queues 11 AlliedWare OS How To Note QoS configuration Example 3-3 Configuring WRR for egress queues Give better service to some types of traffic than to others Full QoS scenario 1 tiered services for a single customerSet the egress bandwidth limiting Identify the types of traffic Set the required properties on the egress queues What is required is thatSet the bandwidth limits RED curves-a refresher Bandwidth limiting Full QoS scenario 2 bandwidth limiting of multiple customersLimiting the incoming traffic Giving better service to Voip traffic C613-16068-00 REV B

x900-48 series specifications

Allied Telesis X900-48 series switches are designed for high-performance networking, making them ideal for enterprise and service provider environments. This series offers advanced features and capabilities that ensure efficiency, scalability, and reliability for demanding network infrastructures.

One of the main features of the X900-48 series is its high port density. With 48 Gigabit Ethernet ports, the switch provides ample connectivity options for numerous devices, which is essential for organizations experiencing rapid growth. Additionally, it supports 10 Gigabit uplinks, allowing for high-speed connections to core networks or other switches, optimizing overall network performance.

The X900-48 series is equipped with a rich set of Layer 2 and Layer 3 features. It supports advanced routing protocols such as OSPF and BGP, enabling efficient and intelligent data routing. The inclusion of VLAN support allows for network segmentation, enhancing security and performance by isolating different traffic types. The support for IPv6 ensures that the network can accommodate future growth as more devices come online.

Quality of Service (QoS) is another critical feature of the X900-48 series. It utilizes intelligent traffic management to prioritize critical applications, ensuring a consistent user experience even during peak loads. The switch supports Power over Ethernet (PoE/PoE+), allowing it to provide power to connected devices like IP phones, cameras, and access points over the same network cable, simplifying installation and reducing costs.

Security is paramount, and the X900-48 series takes this into account with features such as IEEE 802.1X port-based authentication, Access Control Lists (ACLs), and DHCP snooping. These measures protect the network against unauthorized access and enhance data integrity.

The X900-48 series is also built with energy efficiency in mind. It complies with energy standards and integrates technologies that reduce power consumption, making it a cost-effective choice for sustainable networking without compromising performance.

Overall, the Allied Telesis X900-48 series represents a robust, versatile, and efficient switching solution tailored for modern networking demands. Its combination of high port density, Layer 2/Layer 3 functionality, advanced traffic management, and security features makes it suitable for a wide range of applications, ensuring that organizations can meet their networking challenges effectively.
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