Managing Switches

Switch Status

The graph only scales to 40% utilization. Network utilization above this level indicates serious performance problems.

The graph also shows you if a port is active, disabled, or not connected.

Alert Log Area - Find/Fix/Inform

The “Find/Fix/Inform” capability of a device helps you proactively manage your network by displaying network traps and problem conditions in one easily accessible browser page. The device itself monitors counters, internal hardware information, and network traffic. When a problem is discovered, such as loss of link, a problem cable, or a broadcast storm, the Alert Log displays clear messages about the problem. When you double-click on an alert in the Alert Log (or select the alert and click on the Open Event button), the Alerts page displays more information about the alert as well as some suggestions for fixing the problem.

For example, the Alert Log may display the alert “Cable Length”. The following information is available:

Description:

Packet loss detected on port 4. This may be due to an overextended LAN topology or faulty hardware. The loss was detected on this port, but the actual problem can be occurring elsewhere on this segment.

Solution:

Verify the network topology is within IEEE 802.3 topology standards. All ThinLan coaxial cabling must be 185 meters or shorter. No more than 4 repeaters are allowed between any two stations in the network.

Insert bridges or switches between repeaters to extend network topology if needed.

Also, check for faulty cabling, transceivers, and NICs.

Using the Find/Fix/Inform capability, the device can isolate a problem that occurs on one port, preventing it from affecting the entire network.

See Alerts - Find/Fix/Inform for information on reading and acknowledging alerts.

Status - Port Counters

The Port Counters information for switches displays specific network conditions or traffic. See the online help for more information about each counter.

Managing Switches

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HP J3250M manual Alert Log Area Find/Fix/Inform, Description