Questions tagged [ethernet]
For questions relating to Ethernet networking, as defined by the IEEE 802.3 standards.
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Network hardware requirements for mDNS [closed]
I have been trying to get mDNS discovery to work for devices connected to TP-Link TL-SG1005LP switch or Netgear GS105Ev2 with pretty much hit-or miss success. Unless I connect the network to a router ...
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10GBASE-T Line rate vs Data Rate Question
I was hoping someone can clear something up for me.
So my understanding is that 10GBase-T line rate is 10.3125Gbps and has a data rate of 10Gbps. The line rate is higher which accounts for the 64B/66B ...
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If the router is a Layer 3 device, does it even support Layer 2 forwarding (like a switch does)?
Nowadays we have multilayer switch and pure layer 3 device.
Do "pure" layer 3 device like a router use layer 2 protocol ?
Do they require layer 2 header to operate ?
If so, what are the ...
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Practical importance of bonding and grounding Ethernet cables in IP camera installations
this is my first post in this community. I’m looking forward to learning from your expertise.
I’ve noticed that many IP camera installers skip proper bonding and grounding when connecting cameras to ...
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How does a multirate SFP work?
I was recently looking into Ethernet fiber standards and auto-negotiation, and I stumbled upon "multirate SFP transceivers".
At my current employer, we use networking equipment that supports ...
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In a network operating on layer 3 of the OSI model, why is the destination MAC address needed if the target host is in another network?
I am studying the OSI Model, and to my understanding: a MAC address is needed to transmit a message to a node within the same physical network or to a switch/router. IP addresses are used for globally ...
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Need Advice - 140m Ethernet Run Between Buildings
I'm facing a technical challenge and could really use your expertise. I need to establish a wired network connection between two points 140 meters apart - well beyond the standard 100m limit for ...
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Auto-negotiation on shared Ethernet media
I was going through Auto-Negotiation chapter from O'Reilly Ethernet The Definitive Guide 2nd Edition today, and when describing auto-negotiation's basic concepts, the author says the following:
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Can you multiplex 5+ ethernet lines such that one of those is selected mechanically or by detection of a signal on that line?
Hi all I'm a relatively new electrical engineer who's been asked to take 5 Cat 5 data lines and feed them to a hub which selects one of them upon receiving data in that line to send to a computer. As ...
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Auto-MDIX on Gigabit Ethernet
We all probably know what Auto-MDIX is and what problem it addresses for 10/100 Mbps Ethernet.
My general question is: What Auto-MDIX does for Gigabit (and faster) Ethernet and is it really needed?
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Ethernet Speed on work HP Laptop painfully slow [closed]
I am using VPN Wireguard over a router in Country A which connects to Wireguard router in country B to access internet.
When I plugin in the (same cable and USB Adapter) to my surface pro, I get speed ...
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Cat cable pairs' twist rate and how that affects crosstalk
I understand that more twists result is a cleaner signal because the crosstalk is reduced, but how is the rate of twist affecting the physical properties of the wire pair themselves to reduce that ...
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MTU & Fragmentation
MTU Specify how many byte we can send through the link
In the Ethernet link the mtu is 1500 byte
My question is :
(1).Can we send a data less then the mtu ?
(2). if I'm sending data with a size 1300 ...
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When my modem places a signal on coax, is that signal still considered Ethernet?
If I'm using 10BASE-T, 100BASE-TX, or 1000BASE-T Ethernet on my home LAN and need to reach out to the internet, my modem will need to translate the routers LAN signals such that they can operate on ...
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Do switches try to keep track of Ethernet group membership?
I'm trying to better understand ethernet multicast support. My current understanding is that the I/G bit in the destination MAC address indicates whether the target recipient is an individual address ...
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