Question about 3Com (3C17206TAA-US) 24x10/100 Mbps Networking Switch

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How can i stack 3com 4900sx switches? Do i need accessories to do this?

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  • akhatib Jan 14, 2009

    i need simble configration for 3com switch

    how to can insert command to S.W

    how to cofiger DHCP



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  • 29 Answers

If you would like mulitple switchs its as simple as running a patch cable from you port in the switch to one port in the other switch.

Other user: There is no such thing as dhcp in a switch that is done by higher level networking leveling like routers

Posted on Jan 15, 2009

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1 Answer

HP V1910


I believe this website has the answer you need: (I know it says 3com but HP purchased 3com a few years back) http://www.edugeek.net/forums/wired-networks/97909-anyone-know-how-factory-reset-3com-2824-sfp-hp-v1910-24g.html

Apr 07, 2014 | HP V1910-16g Gigabit Ethernet Switch

1 Answer

3com superstack 3 switch 3300 reset himself randomaly need a solution


take it to the 4s garage, if you want to find out the problem by yourself,you first have some professional tool , there are some diagnostic that always can figure out the problem i can show you: www.xcardiag.com/

Apr 12, 2012 | 3Com SuperStack Computers & Internet

1 Answer

How can configure trunk


not sure about the 3COM side, but on the Cisco side... go to the configure prompt, then the port that you need to trunk (int [interface name and number] and enter)

Once you are in the interface, use the following command:
switchport trunk encap dot1q
switchport mode trunk

Then make sure that the interface is not shut down, connect the switches together and (hopefully) the 3COM will negotiate to trunking... if not you will need to manually configure the 3com.

Hope that this helps!

Jan 07, 2010 | 3Com Switch 4500 PWR 26-Port...

1 Answer

The pin do not connect while I tried to connect sitch to switch network connection


In order to connect a switch to a switch, unless it is auto sensing you would need a crossover cable

May 14, 2009 | 3Com Computers & Internet

1 Answer

How to connect wire less connection with my laptop,


TCP/IP stack repair options for use with Windows XP with SP2 & Vista.

For XP, Start, Run, CMD to open a command prompt.

For Vista, Start, Programs\Accessories and right click on Command Prompt, select "Run as Administrator" to open a command prompt.

Reset WINSOCK entries to installation defaults: netsh winsock reset catalog

Reset TCP/IP stack to installation defaults. netsh int ip reset reset.log

Reboot the machine.

Aug 11, 2008 | Linksys WRT300N Wireless Router

2 Answers

I cann't connect to my switch


The primary connection method for those switches would be serial connection. In the box there should have been a DB9 serial to RJ45 cable. Hyperterminal default settings would allow you to connect.

Jul 25, 2008 | 3Com 4500 24-Port Ethernet Switch

2 Answers

Problem with SW 4400 - restarting....


switch dont restart by themselves without command, first remove the switch from the network, disconnect from internet, make sure you hadn't fired anybody recently it sounds like a hack. reduce network traffic to local area only and priortise important internet traffic. now got back to the switch and troubleshoot make to check the reboot command on error or when error is found, if the problem stops when the switch is remove somebody is messing with the network.or the darn switch is faulty install a new one.

May 30, 2008 | 3Com SuperStack 3 4400 (3C17204-US)...

1 Answer

Stacking Cable / SuperStack3 3870


Found this on 3Com website: The SuperStack 3 Switch 3870 family (3870-24 and 3870-48) can stack up to 8 units high. Stacks can be formed with any combination of 24-port and 48-port units, with a maximum of 384 (8 x 48) front panel ports supported. When connected together, a stack of units is managed as a single entity. All units in the stack need to run the same release of the operational version code (firmware). When units are stacked together, they operate in a master-slave relationship. One unit acts as a Master and the other units act as slaves. When looking at a stack of units, the master can be identified by looking at the Stack Master LED on the left side of the switch. The Stack Master LED is green for the Master. If the unit numbers are out of sync, go to the CLI command that allows users to re-number their units- system / control / renumber. This will re-number the units in the stack. It will take about a minute or two. The master is the only unit that has a visible command line interface (CLI) when a console cable is connected to it. If you connect the console cable to a slave unit, you will not see the CLI menu, but instead see slave status messages being displayed. The Master unit may not be unit 1. http://knowledgebase.3com.com/consumer/esupport.asp?id=GUIDbfa9caa4%5F138f%5F4681%5Fbaaf%5F5c99ec5b7ff4&resource=&number=0&isExternal=0&nShowFacts=&nShowCause=&nShowChange=&nShowAddInfo=&activepage=statement.asp&bForceMatch=True&strCurrentSymptom=3C17462&searchtype=normal&searchclass=&bnewsession=false&selecttype=match

Nov 21, 2006 | 3Com (3c17462)

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