1 Port Poe Switch
Dannie Heinzen
I understand, one 48-port switch is easier to manage than 2-24 port switches. But big deal, how often am I really going to have to dive into the switches managed interface once set up? I, personally, can live with the slight inconvenience.
The advantage of a 48 over 2-24s would be rack space and the advantage of moving traffic between interfaces at the speed of 1 backplane. If you tie two 24 ports together, then the traffic going from switch A to switch B will travel only as fast as the port speed connection.
One thing I do is I always make sure I have a extra switch so in your 2-24 setup if more than 24 ports are being used I would have a third switch there running so if one switch dies it will be minimal down time for the users.
I agree on the space and organization. I generally like to have the extra 2U cable management to make things easier and neater. Makes running down cables for changes that much easier too. I also agree it depends on your environment.
I have an old Linksys switch (EZXS55W) and it has worked fine for many years now, but I tried to hook something up today to the last open port and noticed the device didn't work when I did this. When I looked about my switch, it says that it disables that port when using the Uplink port.
I'm still a bit fuzzy on what the Uplink port does for me, I had always assumed that this Uplink port was for me to plug into from my router which is elsewhere in the house and hooked up to the modem so it could allow the switch to work for my other devices. I guess I need more than 5 ports now, but I see newer switches do not have this Uplink port generally anymore. Can I safely buy a new 8 port switch that does not have an Uplink port and maintain the exact same functionality?
If I understand what I'm reading correctly, newer switches did away with the need for a dedicated Uplink port so now the switches intelligently do whatever the Uplink did? I don't want to get further off from the accurate answer to this, so I just want to understand the technicality behind this so I'm not uninformed.
The one thing I guess I'm seeing from this though, if a switch is say an 8 port switch that means 1 port will be used to feed from the actual internet connection (whichever cable is providing it to the switch) and then the other 7 can be devices that need access to that shared network connection and by that virtue, the internet. It does not however, work like 5 port means it has 6 physical ports with one being the "internet" connection, and the other 5 being devices that need to be hooked up, correct? The latter is how I always thought it worked, but thinking this is incorrect now.
They are used to connect together 2 switches with a standard straight-trough cable.(otherwise it would require a cross cable where the transmit and receive are crossed in the cable rather than on the switch port)
Some switches came with 2 physical ports that were actually the same logical port , the first one being wired normally and the second wired "crossed". So you were able to use only one of the physical port a a time, depending if you connect a PC (or a router) or a switch.
Nowadays this generally doesn't matter anymore since most interfaces are "auto-mdix", meaning that the interface detect the type of device connected and cross transmit and receive internally if needed.
Note: this apply mostly to 10Base-T / 100Base-TX ports, since Auto MDI-X is nearly ubiquitous on gigabit Ethernet, and doesn't apply to 10GB Ethernet and above where there's no more dedicated transmit / receive wires.
This has to do with how (UTP) Ethernet cabling works. In the old days, end point devices (like your PC) would use wires 1 and 2 to transmit data, and wires 3 and 6 to listen ( :Ethernet_MDI_crossover.svg) (*). The switch on the other side of the cable would listen on wires 1 and 2, and transmit on 3 and 6. Now if you would connect two siwtches, this would not work with a regular cable, because both switches would use the same wires in the cable to transmit. On solution for this is to use a special crossover cable, within which the cabling is crossed. Another solution is to have a specific "Uplink" port on the switch, which is wired as an end-point and uses the same wires to listen/transmit as a regular PC for instance.
With modern devices this is all a moot point, since practically every device uses "Auto-MDI-X" ( -dependent_interface#Auto_MDI-X) to sense which wire to listen and to transmit on. This standard was introduced in 1998, so it's very rare to find use for your old crossover cables today.
As for your Linksys switch: you can use the Uplink port to connect an end-point if you would use a crossover cable. However, in the internal wiring in the switch the Uplink port is the same port as port number 5 ( -article?articleNum=132646), so you can only use one of them (either the Uplink port, or port 5, not both simultaneously).
After testing other parts of the network including swapping out cables from the router to the switch and swapping out a matching fibre broadband router, I've come to the conclusion that the switch must have failed.
My router has 4 LAN ports, I typically have LAN1 connected to port #1 on the switch. If I connect any LAN port on the router to any port on the switch the corresponding LAN light does not show on either of the routers I tried. So, I think I can conclude that there is an issue with the switch....
2. Connect two PC to the switch directly then use two PC to ping each other, to confirm whether the switch is broken. May need to set static IP address for two PC. If they cannot ping each other, you should replace a new switch.
3. Cat 6 cable running from switch to laptop. Windows 10 network status: "Not connected. You are not connnected to any networks" I guess this is not enough to confirm it's dead, we need to make a loop with another machine from what you say. But, I'm not sure how to set static ip when there's no network adaptor as no connection is seen?
The GS116v2 is only a plug and play switch. It does not require any software for it to work. When you said reset, are you pertaining to just rebooting the device? What is the color of the power LED when it blinks?
There might be a little mistake with the model number you have posted since the GS116v2 is NOT a smart switch. Can you please PM me the serial number of your device so that we can identify the correct model number? I cannot give recommendations for now since I am unsure on what model you are working on.
That's okay. I know some of these models are a bit confusing, no need to PM the serial number. I suggest installing the ProSAFE Configuration Utility and see if the switch will be detected. The power LED should be solid and the Ethernet lights should blink if there's an activity.
The electrical engineer in me says "use any port" it doesn't matter. Gut instinct wants me to put the router's cable right in the middle. Ultimately, the router went to Port 1 at one end of the switch as that made the ordering of the cables easier to think about. My LAN diagram is here if desired.
Modern switches, both low-end and high-end, are generally built out of one or more switching modules. Each switching module typically has full, non-blocking connectivity between all of its ports. 5-port and 8-port modules are common today.
If the switch has more than one switching module, the switching module also has some kind of "backplane" connector used to link the switching modules. On some switches, the backplane (also known as the "switching fabric") is fast enough to support full, non-blocking traffic between all combinations of ports at full speed. But on many of them, the backplane has some limit that is less than that.
Most modern Gigabit switches, managed and unmanaged, having 24 ports or fewer support full, non-blocking traffic on all ports. With more than 24 ports or with ports faster than Gigabit, this starts to get expensive and that feature becomes rarer.
Ethernet is designed with a bus topology in mind. This means each connected node assumes it will get traffic not intended for it, and thus will drop it if it's not addressed to it, or a broadcast packet. (You can override this and put NICs into promiscuous mode where it will accept all packets, not just packets destined for it, if you want.)
When something sent traffic to a port on a hub, the hub would repeat the traffic out of every other port. The destination computer would hopefully be elsewhere on that hub and get the traffic it wanted. Other computers would ignore it, unless it was a broadcast.
Switches learn what MAC addresses are behind what ports, and will use this knowledge to avoid repeating traffic to each port (called "flooding") if possible. If it's not possible, it goes ahead and floods just like an old-school hub.
On enterprise-level managed switches, you can do things like prevent a port from forwarding traffic of a different MAC other than the first that connected to it, and all kinds of other neat things. Your basic consumer level 4-port or 8-port switch doesn't have this capability.
I was hoping to get some direction. I have deployed a PA500 in a small office using a standard L3 deployment (one trusted (LAN) and one untrusted (WAN) interface) and need a few switch-ports on the LAN side for access points. Is it possible to add additional interfaces to the trusted zone and use them as switch ports in the same subnet and virtual router as my current L3 trusted interface?
To request more information regarding our products, please fill out the following online form and a customer service representative will contact you immediately. Fields marked (*) are required. Thank you.
To request volume pricing of any of our products, please fill out the following online form and a customer service representative will contact you immediately. Fields marked (*) are required. Thank you.
Antaira's industrial 10/100TX unmanaged Ethernet switches offer anywhere from five to 26 ports for non-PoE plug and play networking applications. 10/100TX Ethernet provides instant connectivity that is ideal for small to medium networks. Every multi-port industrial Ethernet switch in this collection is designed to withstand harsh conditions in any factory, substation, or outdoor environment you put it. On top of fast Ethernet ports, these devices also offer DIN rail or wall mounting capabilities, extensive port configurations, copper or fiber-optic connections, and more. Call our team today to learn more.
c80f0f1006