Chapter 11: DOS Diagnostics

Diagnostic Tests

The tests are divided into four groups: Register Tests, Memory Tests, Miscellaneous Tests, and Data Tests. They are named group ‘A’, ‘B’, ‘C’, and ‘D’.

Test Names This section lists the groups and the names of the diagnostics tests.

Group A.

A1. Indirect Register Test

A2. Control Register Test

A3. Interrupt Test

A4. BIST

A5. PCI Cfg Register Test

Group B.

B1. Scratch Pad Test

B2. BD SRAM Test

B3. DMA SRAM Test

B4. MBUF SRAM Test

B5. MBUF SRAM via DMA Test

B6. External SRAM Test

Group C.

C1. EEPROM Test

C2. CPU Test

C3. DMA Test

C4. MII Test

C5. VPD Test

C6. ASF Test

C7. ROM Expansion Test

Group D.

D1. Mac Loopback Test

D2. Phy Loopback Test

D3. RJ45 Loopback Test

D4. MII Miscellaneous Test

D5. MSI Test

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Allied Telesis AT-2916SX, AT-2916LX10/LC-901, AT-2931SX, AT-2972T/2 Diagnostic Tests, Group a, Group B, Group C, Group D

AT-2916LX10/LC-901, AT-2972SX, AT-2972SX/2, AT-2972LX10/LC-901, AT-2916SX specifications

The Allied Telesis AT-2972T/2 is a highly capable 10/100 Mbps Fast Ethernet switch designed to provide reliable performance and advanced management features for small to medium-sized businesses. This switch is built on a robust technology platform, making it an ideal choice for organizations looking to enhance their network infrastructure while ensuring scalability and flexibility.

One of the main features of the AT-2972T/2 is its support for 24 ports, allowing for extensive connectivity in a compact footprint. This makes it suitable for environments where space is limited but connectivity demands are high. With auto-negotiation on all ports, the switch automatically detects the best speed and duplex mode, ensuring optimal performance and seamless integration into existing networks.

The AT-2972T/2 incorporates advanced Layer 2 switching capabilities, enabling efficient handling of data traffic. Its ability to support VLAN (Virtual Local Area Network) tagging allows for network segmentation, improving performance and security. This feature is particularly beneficial for organizations that require different departments or teams to maintain their network traffic separately.

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Power over Ethernet (PoE) support is available in some configurations of the AT-2972T/2, allowing the switch to deliver power to connected devices such as IP cameras and wireless access points. This capability simplifies installations and reduces the need for additional power sources, streamlining the deployment of network devices.

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In summary, the Allied Telesis AT-2972T/2 stands out as a versatile and robust Fast Ethernet switch, equipped with essential features like VLAN support, QoS, PoE, and advanced diagnostics. Its combination of performance, management capabilities, and energy efficiency makes it an excellent choice for businesses aiming to build a reliable and future-proof network infrastructure.