Allied Telesis AT-AR048, AT-AR040-10 Testing an AT-AR041 or AT-AR042 NSM, BRI S/T loopback plug

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Network Service Module

Testing an AT-AR041 or AT-AR042 NSM

The Test Facility is built into the AlliedWare operating system, and is the best method to verify the correct operation of the BRI interfaces on the AT-AR041 and AT-AR042 NSMs. Testing can be performed while the switch or router is operational, but any interfaces being tested are dedicated to the Test Facility.

For more information about the Test Facility, see the Test Facility chapter of the AlliedWare® Operating System Software Reference.

When testing BRI interfaces using the Test Facility, a loopback plug must be inserted into each interface being tested. The loopback plug connects the output pins on the interface to the input pins so that any data transmitted over the interface is looped back (hence loopback plug) and received at the same interface. Figure 7 on page 12 shows how to construct loopback plug to test the BRI interfaces.

Figure 7: BRI S/T loopback plug

BRI Loopback Plug (RJ45 connector)

1Not connected

2Not connected

TX+ 3

RX+ 4

RX- 5

TX- 6

7Not connected

8Not connected

8 7 6 5 4 3 2 1

Switch end view

of plug

BRILOOPsw

To test a specific AT-AR041 or AT-AR042 interface, insert a BRI S/T loopback plug into the interface and enter the command:

enable test interface=brin

where n is the interface number.

To test all AT-AR041 or AT-AR042 interfaces at once, insert BRI S/T loopback plugs into all NSM BRI interfaces and enter the command:

enable test interface=expansion

Tests run for 4 minutes. Test status and results can be viewed at any time, using the command:

show test

which produces a display like that shown in Figure 8 on page 13.

The status of the tests for each interface will be shown in the right-most column of the output. For more information on the meanings of the other figures, see the Test Facility chapter of the AlliedWare® Operating System Software Reference for your switch or router.

If you are unsure about running the Test Facility, or have difficulty evaluating the results, contact your authorised Allied Telesis distributor or reseller.

C613-03022-00 REV K

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Contents Hardware Reference AT-AR040 AT-AR041 AT-AR042 AT-AR048 Network Service Module Hardware ReferencePage Contents Devices Covered By This Document Compatible Switches and RoutersAT-AR048 Support Hardware Reference Hardware Overview Common FeaturesSupported Port Interface Cards PICs Guidelines and limits for installing PICsInterface numbering LED AT-AR041 and AT-AR042 NSMsLocation of jumpers on BRI NSMs Basic Rate Isdn InterfacesIsdn S/T Interface Cables RJ45 To switch or router To NTBRI S/T loopback plug Testing an AT-AR041 or AT-AR042 NSMPIC DS3 Interface AT-AR048 NSMDS3 Interface Cables Testing an AT-AR048 NSMNetwork Service Module LEDs and What They Mean Switch and Router LEDs for NSMsB1, B2 PIC LEDsReset voip command Hot Swapping the AT-AR040 NSM with PICs Hot SwappingBehaviour of Hot Swapped Interfaces Configured manually Troubleshooting Obtaining Documentation and Resources Network Service Module

AT-AR040, AT-AR040-10, AT-AR048, AT-AR041-00, AT-AR041 specifications

Allied Telesis has established itself as a reputable brand in the networking solutions market, and its AT-AR Series routers further exemplify their commitment to providing robust networking technology. The AT-AR042, AT-AR041, AT-AR041-00, AT-AR048, and AT-AR040-10 models come packed with features designed to meet the diverse demands of modern networks.

The AT-AR042 is a versatile router designed for small to medium-sized enterprises, offering advanced routing capabilities along with integrated security features. It supports a range of protocols, ensuring seamless connectivity across different network types. One of its standout characteristics is its support for Virtual Private Networks (VPNs), facilitating secure remote access for employees.

The AT-AR041 and the AT-AR041-00 models are specifically crafted to deliver dependable performance in both wired and wireless environments. They offer high-speed connectivity and are equipped with Layer 3 routing features, which is essential for effective traffic management in more complex network setups. These models also incorporate essential security protocols, reducing the risk of unauthorized access and ensuring data integrity.

The AT-AR048 extends the range of capabilities further with its advanced features aimed at larger organizations. It offers comprehensive Quality of Service (QoS) functionality, enabling prioritized traffic management which is particularly important in VoIP and video conferencing applications. Its multiple WAN support allows for load balancing, ensuring consistent uptime and optimized network performance during peak usage times.

Lastly, the AT-AR040-10 rounds out the series by offering a cost-effective solution without skimping on the essential features expected of a high-performance router. It comes with an intuitive management interface that simplifies configuration and monitoring, making it a favorable choice for IT staff.

Collectively, these routers incorporate technologies such as IPv6 support, SNMP for network management, and firewall capabilities to provide a secure and efficient networking environment. Additionally, they uphold the industry standards necessary for interoperability with existing systems.

In conclusion, the Allied Telesis AT-AR Series offers a range of products catering to the varying needs of businesses. From small offices to larger enterprises, these routers provide the essential features and capabilities needed to ensure reliable connectivity, secure access, and efficient network management. Their combination of performance, scalability, and security makes them an attractive choice for organizations looking to enhance their networking infrastructure.
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