Troubleshooting the WAN

Troubleshooting

Link (LNK) LED is OFF

The WAN interface is not conﬁgured for operation.

•Use QuickSET or Local Management to make sure that the WAN interface is conﬁgured correctly.

Link (LNK) LED is RED

The WAN interface is conﬁgured, but there is no signal indicating that a valid connection is present on the WAN interface.

•Check that the CSX400 and the device at the other end of the segment are powered up.

•Use QuickSET or Local Management to make sure that both WAN interfaces, local and remote, are conﬁgured correctly.

•Check to ensure that the correct cable is being used.

•Check to ensure that the cable has continuity and is fully installed.

•Check with the WAN Service Provider to ensure that the circuit has been conﬁgured by them and is active.

Link (LNK) LED is AMBER

The port is in Standby mode.

•Check with the Network Administrator to see if management placed the port in Standby mode.

•Ensure that the protocol that you want to run has been properly selected at both ends and the time slots have been allocated if applicable.

Status 1 (STS1) LED is OFF

WPIM-T1, WPIM-E1, WPIM-DI, or WPIM-DDS Installed in CSX400

The port is operating normally. If it is not, and this LED is OFF the port may be disabled.

•Use QuickSET or Local Management to make sure that the WAN interface on the Local device is conﬁgured correctly.

CSX400 and CSX400-DC User’s Guide 209

CSX400-DC, CSX400 specifications

Cabletron Systems was a leading developer of networking solutions, and its CSX400 and CSX200 series of high-performance switches represent some of the key innovations in the field of enterprise networking during their time. Both models were geared towards enhancing network reliability, efficiency, and speed, particularly in environments where heavy data traffic and complex networking demands were prevalent.

The CSX400, designed for larger enterprises, boasts a robust architecture capable of handling significant throughput. One of its standout features is its stackable design, allowing multiple switches to be interconnected and managed seamlessly as a single unit. This scalability provides organizations with the flexibility to expand their networks without significant infrastructure overhauls. The CSX400 supports various Ethernet standards, including 10/100 Ethernet and Gigabit Ethernet, positioning it to effectively manage both legacy and modern networking requirements.

In addition to its scalability, the CSX400 is distinguished by its advanced Layer 2 and Layer 3 routing capabilities. This dual-layer functionality enables efficient data handling and is instrumental in managing traffic between different network segments. Moreover, the switch incorporates features like VLAN (Virtual Local Area Network) support and Quality of Service (QoS) prioritization, allowing for enhanced performance of critical applications and streamlined bandwidth allocation.

On the other hand, the CSX200 series is tailored for smaller enterprises or branch offices needing a reliable yet efficient networking solution. Despite its compact design, the CSX200 is equipped with essential features that promote effective network management and security. It offers a simplified management interface, making it user-friendly for network administrators. The switch also provides essential access control measures, employing technologies like IEEE 802.1X for network access security.

Both the CSX400 and CSX200 prioritize performance through the incorporation of advanced switching technologies. They support features such as Spanning Tree Protocol (STP), enabling loop-free topologies and enhanced network resilience. These attributes are particularly crucial in dynamic networking environments where downtime can have significant repercussions on business operations.

Overall, Cabletron Systems' CSX400 and CSX200 series represent a blend of scalability, advanced routing capabilities, and user-friendly management, making them vital assets for organizations looking to optimize their network infrastructure during a period of rapid technological evolution. With their rich feature sets and unwavering performance, these switches helped pave the way for modern networking solutions that cater to diverse enterprise needs.

Cabletron Systems CSX400-DC Troubleshooting the WAN, Link LNK LED is RED, Link LNK LED is Amber

Models: CSX400-DC CSX400