Chapter 5

Advanced Configuration

Queue shaping can be based per queue and/or per interface. Shaping is determined by the lower specified value. The queue shaping type is selected in the Bandwidth screen.

Interface  Indicates the interface for which the queue shaping information is displayed. The possible field values are:

•• Port  Indicates the port for which the bandwidth settings are displayed.

•• LAG  Indicates the LAG for which the bandwidth settings are displayed.

Ingress Rate Limit Status  Indicates if rate limiting is defined on the interface.

Egress Shaping Rate on Selected Port  Indicates if rate limiting is enabled on the interface.

Committed Information Rate (CIR)  Defines CIR as the queue shaping type. The range is 641,000,000Kbps.

Committed Burst Size (CBS)  Defines CBS as the queue shaping type. The possible field value is 409616,769,020bits.

Use the Add to List button to add the Bandwidth configuration to the Bandwidth Table at the bottom of the screen.

QoS > Basic Mode

QoS > Basic Mode

The Basic Mode screen contains the following fields:

Trust Mode  Displays the trust mode. If a packet’s CoS tag and DSCP tag are mapped to different queues, the Trust Mode determines the queue to which the packet is assigned. Possible values are:

•• CoS  Sets trust mode to CoS on the device. The CoS mapping determines the packet queue

•• DSCP  Sets trust mode to DSCP on the device. The DSCP mapping determines the packet queue

QoS > Advanced Mode

Advanced QoS mode provides rules for specifying flow classification and assigning rule actions that relate to bandwidth management. The rules are based on the ACLs (see Access Control Tab). This feature has been added to version 1.2 of the SRW2024/SRW2016 and version 1.1 of the SRW224G4/SRW248G4.

QoS > Advanced Mode

MAC ACLs and IP ACLs can be grouped together in more complex structures, called policies. Policies can be applied to an interface. Policy ACLs are applied in the sequence they appear within the policy. Only a single policy can be attached to a port.

In advanced QoS mode, ACLs can be applied directly to an interface in Security > ACL Binding. However, a policy and ACL cannot be simultaneously applied to an interface.

After assigning packets to a specific queue, services such as configuring output queues for the scheduling scheme, or configuring output shaping for burst size, CIR, or CBS per interface or per queue, can be applied.

Out of Profile DSCP Assignments  This button opens up the Out of Profile DSCP screen.

Advanced Mode > Out of Profile DSCP

Advanced Mode > Out of Profile DSCP

DSCP In  Displays the DSCP In value.

DSCP Out  Displays the current DSCP Out value. A new value can be selected from the pull-down menu.

WebView Switches

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Linksys SRW2016, SRW248G4, SRW2048, SRW2024, SRW224G4 QoS Basic Mode, QoS Advanced Mode, Advanced Mode Out of Profile Dscp

SRW2016, SRW224G4, SRW2024, SRW2048, SRW248G4 specifications

The Linksys SRW2048 is a robust Layer 2 managed switch that caters to the networking needs of small to medium-sized businesses. Designed with performance and reliability in mind, it provides features that ensure optimal network efficiency and security.

One of the standout features of the SRW2048 is its 48 10/100/1000 Mbps Gigabit Ethernet ports, enabling high-speed data transfer and seamless connectivity for various devices within the network. This makes it ideal for environments with heavy data traffic, ensuring minimal latency and high performance.

The SRW2048 also supports advanced Layer 2 management features, including VLAN (Virtual Local Area Network) support, which allows users to segment the network into smaller, manageable sections. This is crucial for improving security and performance, as it reduces unnecessary traffic and potential broadcast storms. With a VLAN configuration, businesses can group users and devices based on function or department, ensuring efficient communication within teams.

In addition to VLAN capabilities, the Linksys SRW2048 incorporates Quality of Service (QoS) features. This technology prioritizes critical network traffic, such as voice over IP (VoIP) and video conferencing, ensuring that these applications receive the bandwidth they require for optimal performance. This is particularly beneficial for businesses that rely on real-time communication tools.

The switch also enhances security through features such as IEEE 802.1X port security, which ensures that only authorized users can access the network. The SRW2048 supports access control lists (ACLs), allowing administrators to set specific permissions for users and devices, further tightening security.

Linksys has also equipped the SRW2048 with a user-friendly web-based management interface, simplifying the process of configuring and monitoring network performance. This accessible interface allows IT personnel to quickly identify issues, manage traffic, and configure settings without extensive training.

Another notable characteristic of the Linksys SRW2048 is its robust build quality and reliability. With a metal chassis and fanless design, it maintains a low acoustic footprint and ensures passive cooling, making it suitable for office environments.

Overall, the Linksys SRW2048 is a feature-rich managed switch that combines advanced networking technologies, efficient performance, and security features to meet the diverse needs of modern businesses. Its scalability, manageability, and robust construction make it a valuable addition to any network infrastructure.