3Com CS/2500 Installation Manual

Contents

Memory Dump Procedures 6-51 Reset the server by pressing the reset switch on the front panel.2 If resetting the server does not resolve the problem, check the cable,transceiver, and any other devices associated with connecting theEthernet interface to the network.Replace any faulty component.3 If the problem persists, contact your network supplier.Memory DumpProceduresIf the communications server fails during operation, you can write thecontents of the server’s CPU registers and RAM to an RBCS orTFTP/FTP server, or to diskettes. This procedure is called a memorydump.The memory dump procedure depends on the communications server’sconfiguration. For example, if Auto-Reboot in the firmwareconfiguration is set for “Upload then reboot,” the memory dump to thenetwork is automatic. If Auto-Reboot is set to “Boot monitor,” thecommunications server enters monitor mode and waits for commands.You must attach a terminal to the console port and enter the uploadcommand up to dump memory to the network, or du to dump it todiskettes. If Auto-Reboot is set to “Reboot,” no memory dump isperformed, and the contents of memory are overwritten.A communications server crash is also reported in the audit trail.Technical support staff can use audit trail and memory dumpinformation to diagnose the cause of the crash.Dumping Memory toan RBCS ServerTo write a memory dump to the RBCS server, you must set the bootprotocol to TFTP and establish a safepath on the RBCS server. Thedefault safepath is to the data/DUMP directory. If this directory is notalready present on the RBCS server, you must create it for the memorydump. If you specify a different path for the TFTP Upload Pathparameter, the memory dump uses that path. For more information onthe RBCS safepath function, refer to the Remote Boot and ConfigurationServices User’s Guide or release notes. For information about the TFTPUpload Path parameter, refer to Table 4-3 on page 4-11.CS2500BookFile : Troubleshooting Page 5 Thursday, December 11, 1997 10:44 AM