Cabletron Systems SEHI-22 User Manual

Also see for SEHI-22: User guide Addendum

Contents

CHAPTER 1: INTRODUCTION1-4SEHI USER’S GUIDELANVIEW LEDsCabletron Systems LANVIEW Status Monitoring and DiagnosticsSystem is a troubleshooting tool that helps in diagnosing power failures,collisions, cable faults, and link problems. The LANVIEW LEDs areconveniently located on the SEHI front panel.Reset ButtonResetting the hub with the front panel Reset Button reboots the SEHI andinitializes the processor.Local ManagementManage the SEHI and its attached segments through Local Managementon the SEHI. Local Management provides full packet and error statisticsfor the entire stack, individual device, or individual port. Access LocalManagement by attaching a DEC VT320 terminal or a PC using VT320emulation software to the SEHI RJ45 COM port.1.5 STACKABLE CAPABILITIESThe SEHI intelligent hub is designed to manage the Cabletron series ofSEH non-intelligent hubs. The SEHI serves as the logical “top” of thestack. It manages all SEH hubs in the stack providing full packet and errorstatistics for the entire stack, individual device, or individual port.Stack up to four SEH non-intelligent hubs with one SEHI using Cabletronexternal HubSTACK Interconnect cables. Stackable configurations makeit possible to maintain only one IEEE repeater hop while providing up to130 Ethernet ports. Hubs can be added or removed from the stack withouthaving to power down the entire stack.