Troubleshooting

Diagnostics Tips

The information in the following tables may help to isolate or resolve certain system problems.

General Symptoms

The following table provides general diagnostics information that applies the AR1202 and AR1204 router.

Table B.2: Common Symptoms and Actions

Symptom

Cause

Action

 

 

 

 

Power LED does not

No power is

1

Verify that the AC power cord is functional.

illuminate with power

applied.

2

Make sure the power supply is working

applied.

 

 

 

properly.

 

 

 

 

 

3

Verify that the DC power cord is functional.

 

 

 

 

Power LED is

The connecting

1

Verify that the interface cable is connected

illuminated green, but

terminal is faulty

 

to the console port and that the cable is

the terminal or

or not configured

 

properly assembled.

workstation

properly, the

 

See Table A.7 on page A-5for information

connected to the

interface cable is

 

 

about the console cable.

system Console port

faulty, or the

 

2

Make sure the terminal is powered up.

does not display a

system Console

 

 

CLI command prompt

port is faulty.

 

 

or other text.

 

 

 

 

 

 

 

Ethernet LINK/ACT

The Ethernet LAN

1

Make sure the Ethernet LAN cable is

LED is not

is not active or the

 

properly connected between the hub or

illuminated or

LAN cable is

 

switch and the Foundry AR1202 and

flashing.

faulty.

 

AR1204 router.

 

 

2

If you are using a non-Foundry LAN cable,

 

 

 

refer to Table A.8 on page A-6to check the

 

 

 

cable pinouts.

 

 

3

Make sure both the router and the adjacent

 

 

 

LAN nodes are powered on.

 

 

 

 

Ping test fails.

The Ethernet LAN

1

Make sure the Ethernet LAN cable is

 

is not working, the

 

properly connected between the hub or

 

destination host is

 

switch and the Foundry router.

 

not responding, or

2

Make sure cables are properly connected

 

the LAN cable(s)

 

 

between the service provider’s switch, hub,

 

are faulty.

 

 

 

or LAN and the Foundry router.

 

 

 

 

 

3

If you are using a non-Foundry LAN cable,

 

 

 

refer to Table A.8 on page A-6to check the

 

 

 

cable pinouts.

 

 

4

Verify that the LAN is properly configured at

 

 

 

the command line. Also, check IP

 

 

 

addresses, subnetting, and routing

 

 

 

configurations.

 

 

5

Use the display arp command for target

 

 

 

addresses.

 

 

6

If excessive collisions exist on the LAN,

 

 

 

switch to a less congested LAN segment.

 

 

 

 

June 2004

© 2004 Foundry Networks, Inc.

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Foundry Networks AR1202 manual Diagnostics Tips, General Symptoms, Table B.2 Common Symptoms and Actions Cause

AR1202 specifications

The Foundry Networks AR1202 is a versatile and robust router designed to meet the demands of modern networking environments. As part of Foundry Networks' AR series, the AR1202 is engineered to deliver high-performance, reliable connectivity for enterprises and service providers alike.

One of the main features of the AR1202 is its advanced routing capabilities, which support both IPv4 and IPv6 protocols. This dual-stack support ensures that businesses can transition smoothly into the next generation of internet protocols while maintaining compatibility with existing systems. The router is equipped with a powerful CPU and optimized memory, enabling it to handle large amounts of data traffic efficiently.

Another significant characteristic of the AR1202 is its extensive set of interface options. With multiple Gigabit Ethernet ports, the router offers flexibility in connectivity, catering to various network topologies and requirements. The ports support various Ethernet standards, making the AR1202 suitable for a wide range of applications, from office networks to data centers.

The AR1202 also incorporates advanced security features, such as integrated firewall capabilities and support for Virtual Private Networks (VPNs). These security measures help protect sensitive data and maintain the integrity of communications across the network. Additionally, the router supports advanced quality-of-service (QoS) features, allowing administrators to prioritize critical applications and manage bandwidth effectively.

Furthermore, the AR1202 is designed with scalability in mind. Its modular architecture allows for easy upgrades and expansions, ensuring that organizations can adapt to changing network demands without needing to invest in entirely new hardware. This scalability is complemented by the router's management capabilities, facilitated through a user-friendly interface and comprehensive monitoring tools that simplify configuration, troubleshooting, and maintenance.

In conclusion, the Foundry Networks AR1202 is a powerful and adaptable router with advanced routing and security features. Its high-performance capabilities, extensive interface options, and scalability make it an ideal choice for businesses looking to enhance their network infrastructure. As organizations continue to evolve in response to increasing data demands and security threats, the AR1202 stands out as a reliable solution for robust and secure networking.