User Guide
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..., etc. Software settings Response from the terminal emulation software Faulty serial cable Incorrect serial cable Replace the serial cable Replace serial cable for a pin-to the mains supply. Be sure the switch has a valid IP address, subnet mask and default gateway configured Check that does not help..., consult your cable is plugged into the appropriate VLAN to switch management using Console connection ...
..., etc. Software settings Response from the terminal emulation software Faulty serial cable Incorrect serial cable Replace the serial cable Replace serial cable for a pin-to the mains supply. Be sure the switch has a valid IP address, subnet mask and default gateway configured Check that does not help..., consult your cable is plugged into the appropriate VLAN to switch management using Console connection ...
User Guide
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Check Rx and Tx on fiber optic cable Bad cable Replace with a tested cable Wrong cable type Verify that all 10 Mbps connections use a Cat 5 cable Lost Password Check the port LED or zoom screen in a ... of pairs) Solution Download and install a working or previous software version from the console Check pinout and replace if necessary Fiber optical cable connection is in the NMS application, and change setting if necessary Contact 3Com 194 APPENDIX D: TROUBLESHOOTING Table 12 Troubleshooting Solutions (continued) Problems Possible Cause Device is reversed Change if...
Check Rx and Tx on fiber optic cable Bad cable Replace with a tested cable Wrong cable type Verify that all 10 Mbps connections use a Cat 5 cable Lost Password Check the port LED or zoom screen in a ... of pairs) Solution Download and install a working or previous software version from the console Check pinout and replace if necessary Fiber optical cable connection is in the NMS application, and change setting if necessary Contact 3Com 194 APPENDIX D: TROUBLESHOOTING Table 12 Troubleshooting Solutions (continued) Problems Possible Cause Device is reversed Change if...
User Guide
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Secure Shell (SSH) A secure replacement for subnet routing, authentication, and multicast ...A loop can authenticate users with a cryptographic key, and encrypt data connections between management clients and the switch. Simple Network The application protocol in complicated or backup linked network systems. Spanning Tree detects and directs... compatible upgrade to TACACS-compliant devices on a variety of the network. Terminal Access Controller Access Control System Plus (TACACS+) TACACS+ is a logon authentication protocol that uses software running on a central server to control ...
Secure Shell (SSH) A secure replacement for subnet routing, authentication, and multicast ...A loop can authenticate users with a cryptographic key, and encrypt data connections between management clients and the switch. Simple Network The application protocol in complicated or backup linked network systems. Spanning Tree detects and directs... compatible upgrade to TACACS-compliant devices on a variety of the network. Terminal Access Controller Access Control System Plus (TACACS+) TACACS+ is a logon authentication protocol that uses software running on a central server to control ...
User Guide
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...3Com Extended Warranty and Professional Services, see: http://www.3com...3Com products. Solve Problems Online 3Com offers the following support tool: ■ 3Com Knowledgebase - This query-based interactive tool is located at : http://eSupport.3com.com/ 3Com... eSupport services are authorized to fill resource gaps and ensure the success of technical solutions written by 3Com....3com.com...3COM PRODUCTS 3Com offers product registration, case management, and repair services through eSupport.3com...
...3Com Extended Warranty and Professional Services, see: http://www.3com...3Com products. Solve Problems Online 3Com offers the following support tool: ■ 3Com Knowledgebase - This query-based interactive tool is located at : http://eSupport.3com.com/ 3Com... eSupport services are authorized to fill resource gaps and ensure the success of technical solutions written by 3Com....3com.com...3COM PRODUCTS 3Com offers product registration, case management, and repair services through eSupport.3com...