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Question about HP ProCurve 2626 (J4900B) 24x10/100 Mbps Networking Switch

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Mini GIBIC Problem

Right now we are using 3 of these switches in our network to connect 3 different buildings to each other. There is fiber run between the three building. Now here is where the problem starts. We have a connection between building 1 and 2 but from building 2 to 3 there is no connection. The port is lit in building 3 saying there is a connection but in building 2 the port is off. Now if I haven't lost you yet. Both the ports are configured the same and they are on the same VLAN. They are both set to the same speed everything should be working but it doesn't. If anyone has any suggestions that I should try let me know thanks for your time in helping me solve my problem. Andrew

Posted by Andrew_Reed on

  • Andrew_Reed Aug 21, 2007

    I solved the problem by switching out the switch in building 2 see as that is where the problem was happening. After I switched it everything seemed to work fine.



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I would try changing ports and see if that resolves the issue, if not, then run a fox and hound on the cable. even though you have a connection light on the swith in building 3 I would also try differant port or swithc, I would also check the ends of the cables to make sure both ends have a good connection. Hope this helps.

Posted on Aug 18, 2007


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Related Questions:


What Are Similarities and Differences Between Console and Mini USB Interfaces?

A console interface can be connected to an operation terminal for onsite configuration. It must be used with a console cable. After a switch is powered on for the first time, you need to log in to the switch through the console interface to configure the switch.
A Mini USB interface is also used to connect the switch to an operation terminal. The Mini USB and console interfaces on a switch are multiplexed and enable connection to the switch through different types of physical interfaces. Only one of the Mini USB and console interfaces can be used at a time. The Mini USB interface is preferred.

How to connect the PTH, SDH, OLT AND ONU?

The current technology in PTN direction development, Huawei PTN packet switching network, SDH (synchronous digital system), the ONU is PON (passive optical network) in the concept, the ONU is lower.Access layer is commonly by hosting online travels.OLT, ONU is through the PTN, Ethernet, etc., belongs to the category of the access layer, and should be OLT, mainly VOIP access, with your said, the concept of SDH transmission, so OLT, are all belong to the category of transmission bearing networkThe current technology in PTN direction development, PTNPTN () packet switching network, SDH (synchronous digital system), the ONU is PON (passive optical network) in the concept, the ONU is lower.Access layer is commonly by hosting online travels.Huawei OLT, ONU is through the PTN, Ethernet, etc., belongs to the category of the access layer, and should be OLT, mainly VOIP access, with your said, the concept of SDH transmission, so OLT, are all belong to the category of transmission bearing network
Nov 09, 2015 • Cell Phones

MIDI over CAT5 cable or MIDI over Fiber optic cables? Which is better and what are the differences?

Actually the range of anything Cat5, 5e, 6 etc is only 300ft. This limitation can be overcome with some form of repeater (hub, switch). cat cables are much easier to install and the twisting of the wire pairs make them fairly resistant to outside noise. (Still don't put next to high voltage anything). Single mode fiber can reach several miles while multimode fiber is more like 1500ft (not 100% on that) fiber can use a wide range of connectors. Fiber is typically more expensive and difficult to terminate plus it is not very flexible and is best used for connection different floors together or different buildings. The best network is a mixture of the two technologies.

Your company has just moved to a new office building. The server has a fiber optic network adapter, but the building does not have fiber optic cables installed. How do you install a media converter?

100BaeFX to 100BaseTx media converter. ST to SC cable.

SCA connector goes to the RX port in media converter.

STA connector goes to the TX jack on network adapter.

SC male B to TX port on media converter.

ST male B connector to the RX jack on network adapter.

Connect media converter to network with Cat5e cable which uses RJ-45 connectors.

How to configure mini-GBIC port

For mini-GBIC ports you have to set the media type under the interface settings

if you want to use fiber, set the meida type as fiber and for copper media type as rj45

Would I be able to connect up to 10 eternet switches every 300ft to extend internet signal

For what purpose? Why would you require the distance?

Rather than using a switch which will slow down your network traffic, you could just use a signal repeater. Better yet, why not just use fiber between your 2 locations?

Let me give you a clarification of what the MAX length really is:

The max length from switch to node is 100 meters. This 100 meter length, however, includes the vertical drops and all passive connections such as the patch cables from the switch to the patch panel and the patch cables from the jacks to the computers (or other types of nodes).

If you need to connect 2 specific servers located at different buildings another option that you have would be to create a Secure VPN link between the two using the Internet. Companies do it everyday and quite safely. I would recommend that if this is the route you take, make sure to include in your network design a hardware firewall and NAT based router using ACL's to control any unauthorized traffic or connections to either location at BOTH locations.

Hope that this information helps you out.

Keith Deininger - CISSP, A+/Net+, MCSE, MCP, CCNA

Canary CFT-2062 connection diagram

I tried to answer this for you yesterday but FixYa didn't put it through I guess. I'll try again.

That device is a "Industrial Media Converter". It is for converting a 100BASE-TX LAN cable into a 100BASE-F fiber optic cable for long-range networking. (2km) There are two ways to use it.

Get two and convert LAN to fiber, then back to LAN.

Use it to tap into an existing fiber network, like fiber optic Internet.

For the first case; you will need some "Duplex" "multi-mode" fiber optic cable ($1.10 a meter) and an other one of those devices ($50~$300).

For the second case you will also need some fiber optic cable and you will need a network to tap in to. Of course you will need to clear everything with the company that owns that network before you can do any thing. And that’s assuming that they even use the same system level protocols.

To directly answer your question:

1: Hook the 100BASE-TX LAN port up to a PC, Hub, or a switch.

2: Hook up TWO multi-mode fiber optic cables to the device using CT style connecters. Hook one to the TX and one to the RX connectors on the unit.

3: Run the cable how you see fit.

4: Hook the other end up to the interfacing device. Be it joining it to an other cable in an existing network, or to another of those devices.

Note: The TX cable of one device goes to the RX of the other and visa-versa.


P.S. I also have one exactly like that one that I’m trying to find a use for.
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