Chapter 13: Setting Internet Group Management Protocol (IGMP) Snooping

Displaying the Routers List

To display the IGMP Routers List, do the following:

1.Select the Switching tab.

The Switching tab is displayed. See Figure 19 on page 58.

2.From the Switching tab, select IGMP.

The IGMP Snooping page is displayed with the Configuration tab selected by default. See Figure 49 on page 147.

3.Click the Routers List tab.

The IGMP Snooping page with the Routers tab selected is displayed. See Figure 50 on page 149.

The following settings are displayed:

VLAN ID— Indicates the ID numbers of the VLANs of the router ports.

Port ID— Specifies the port of a multicast router. If the switch learned a router on a port trunk, the trunk ID number instead of a port number is displayed.

Router IP— Indicates the IP addresses of the multicast routers.

Time to Expiry— Specifies the number of seconds remaining before the switch times out a multicast router if there are no further IGMP queries from it.

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Allied Telesis AT-9000/28SP, AT-9000/52 manual Displaying the Routers List

AT-9000/52, AT-9000/28SP, AT-9000/28 specifications

The Allied Telesis AT-9000/28 is a versatile and robust network switch designed for organizations seeking to enhance their networking capability. This Layer 2 managed switch delivers a high degree of performance and reliability, making it an ideal choice for businesses that require a seamless network experience.

One of the main features of the AT-9000/28 is its 28 ports, which include 24 Fast Ethernet ports and 4 Gigabit Ethernet uplink ports. This allows for flexible network configuration and scalability, accommodating both wired and wireless devices efficiently. The switch also supports auto-negotiation and auto-MDI/MDI-X, which simplifies installation and connectivity by automatically detecting and configuring the appropriate settings.

The AT-9000/28 employs advanced switching technologies, such as IEEE 802.1Q VLAN tagging, which enables the segregation of traffic for improved security and performance. This feature is crucial for businesses that require data isolation between different departments or user groups. In addition, the switch supports quality of service (QoS) protocols, allowing for traffic prioritization. This is particularly beneficial for organizations that handle multimedia applications or VoIP services that demand reliable bandwidth.

Another significant characteristic of the AT-9000/28 is its support for port mirroring. This capability is essential for network monitoring and troubleshooting, as it allows administrators to track and analyze network traffic efficiently. Furthermore, the switch supports multiple user authentication methods, including RADIUS and TACACS+, thus enhancing network security.

The AT-9000/28 is built with energy efficiency in mind, featuring Energy Efficient Ethernet (EEE) technology. This reduces power consumption during periods of low traffic without compromising performance, which aids in lowering overall operational costs.

In terms of management, the AT-9000/28 offers versatile management options, including a web-based GUI, Command Line Interface (CLI), and SNMP support. This flexibility enables network administrators to configure, monitor, and troubleshoot the switch easily.

Overall, the Allied Telesis AT-9000/28 is a reliable switch well-suited for a variety of network environments. Its combination of performance, security features, and energy efficiency makes it an excellent choice for organizations looking to optimize their network infrastructure. With robust capabilities and advanced technologies, the AT-9000/28 stands out as a valuable addition to any networking setup.