ethernet's questions - English 1answer

607 ethernet questions.

How would a network behave if one were to set the source address of an Ethernet frame to the broadcast address FF:FF:FF:FF:FF:FF? Obviously, one would have to manually alter the relevant field in the ...

I understand the number in the naming convention. The number represents how many Megabits per second can the standard support. However, I do not understand the rest of the naming convention. What do "...

I am new to networking, know about Ethernet and that Ethernet cables exist to make a wired networks. I also know about fiber optic cables which have a glass like material inside and transmit light ...

I know about different LAN topologies(like star, bus, ring,...) and that Ethernet is one of the ways to practically implement wired LANs. I wonder what other technologies exist to make LANs? And, is ...

According to IEEE 802.1X-2010 the standard for defining MACSec Key agreement protocol Clause 9.6, that's how the key-server decides to use MACSec or no. Each participant advertises whether it is ...

I am trying to wrap my head around MACSec Key agreement protocol (MKA) and its relation with MACSec and other protocols. So bear with me. To my understanding in order to MACSec to work, all nodes ...

I understand that most ports that support SFP+ transceivers can step down to allow an SFP to be plugged into it, but my question is around the transceivers/optics themselves. Can an SFP+ transceiver ...

I have a 1Mb/s link each user uses 100Kb/s when active. With 10 user active 10% of the time, I can have 10 users in a circuit switched environment. Packet switching with 35 users, probability > 10 ...

I have to set up our network in our new office. I'm no networking expert (developer), but I need some input and advice here for some things I wonder about. I have purchased the following: 2 x Cisco ...

I have two Wi-Fi modules (Moxa AWK 3131) from MOXA. I am trying to set up these two modules in such a way that they can talk to each other. I have connected them as follows, I have configured the ...

Over (Software defined network) what will happen when unknown Ethernet hits the first switch, using 4 OF switch and 8 host.

In normal network with Cisco 3650 (1Gbps) and Linux base servers, the ping time is between 0.150ms to 0.250ms. (I also mean using ping or ICMP is to refer to all protocols) I want to know is there ...

I’m working through questions from computer networking top down approach and was hoping to get some clarity on the end-to-end delay calculation. At this stage we are not considering processing, ...

So basically do the modern routers in the internet still use 1500 as the MTU of Ethernet? or the 1500 Byte was for the old days? What I'm asking here is what is the MTU of Ethernet in modern Networks?...

We have some devices connected together through a switch. We need to access them through another network, but because of IP counts limitation we cant get IP from that network. Q: How to access my ...

I have a client who has been experiencing a significant amount of performance issues in regards to their telemarketing floor. On my initial assessment, I found that where the ethernet is punched down, ...

I know that cable connection (DSL) is asymmetric, there is a certain bandwidth on the channel, and for a better user experience, they allocate a bigger portion to the downstream. I suppose Ethernet ...

Is there any specific calculation that that was done to arrive at this number, and what were the factors that were taken into consideration for that calculation.

Recently I purchased CAT6 cable with a length of 150 meter. I bought another CAT6 with a length of 148 meter. I joined both the cables using RJ45 cable coupler. I tested it using LAN TESTER, and ...

So considering that CSMA/CD is for detecting collisions, mostly in a bus scenario with a lot of stations, then is CSMA/CD still used? Because right now most of the connections are point to point (for ...

So first off, do ethernet sends ack frames or not? if it doesn't : then how does a router know whether its neighbors are down or not? if it does : then is it cumulative ack with an ack timer or one ...

Can i change the speed of the uplink ports on fortigate 600D from 10Ge to GE? i have core switch alcatel with GE ports need to be integrated with FW 600D

I am testing the ethernet transmission on my Digilent Nexus4 DDR FPGA. I created a really simple packet with a broadcast destination address and some made up ethernet type. Here is the packet as ...

I have 500 feet of what is described as Cat6 Solid STP Copper Bulk Cable (White) Here are the full specs CAT6 STP 8-Conductor, Bulk, PVC Jacket, (FTP) Shiedled AWG23, Solid-Bare Copper,(UL/ETL) ...

Please consider dot1q frames tagged 100 circulating on a LAN (VLAN 100). To go out onto the Internet, frames have to go through a PPPoE sub-interface which is configured as below: interface ...

In order to Telnet to a switch (Layer 2) we create an SVI, thus a layer 3 point of contact is made. The switch inspects each packet sent from the remote client and responds to it so that it gets ...

On my PC I have an Intel Ethernet Connection I217-LM with e1000e driver. If I receive packets in Wireshark or any libpcap based tool, the received ethernet frames start with Ethernet II frame and end ...

Ethernet defines a 2 byte header for the payload's length in its frame format. This header has an ambiguous meaning: if smaller than or equal to 1500 it represents the payload length. if ...

I saw this questionwhich looks kind of related, but I'm not sure as the answers are too confusing. Basically, I want to SSH into my Raspberry Pi from my laptop. Eventually I want to have the Pi ...

I'm trying to understand how crossover cables work, and am looking at this image: I can understand from the image that the transmission wires are swapping with the receive wires, and I know why that ...

I am in an intercom network with 2 telephones at 2 different places A and B. If I pick up receiver at A and dial a certain number, the phone rings at B and I can speak. I have ethernet based ...

The network has 2 subnets: i) 192.168.1.x ii) 192.168.100.x The telecom optical modem sits at 192.168.1.1 A cisco router and windows server are present on the network. DHCP and ...

What is Ether? is it the same meaning with Ethernet?

If I have a GPON ISP, is it possible, and if possible, is it faster or better, to use a GPON ONT<->SFP adapter directly into a server rather than using a GPON ONT<->GigabitEthernet interface or ...

I am very new to this field and I want to ask a quick question about IP/Device HTTPS. When we type in the IP address of the device (cisco switch, router, firewall, etc), we can access to the web ...

Some Ethernet SFP modules have them, some do not. What is the yellow springing mechanism and the attached metal wire meant for?

The serialization delay is the amount of time it takes to forward bits out of an interface. A 1 gigabit per second interface can send 1 billion bits per second. One billion bits per second equates to ...

Theoretically speaking, as far as I know Ethernet was developed to be used as a broadcasting protocol and technology. I guess nowadays it is not being used this way. Since ALL the examples I see refer ...

I've the following frame ethernet: 08 00 20 0A 70 66 08 00 20 0A AC 96 08 00 45 00 00 28 A6 F5 00 00 1A 06 75 94 C0 5D 02 01 84 E3 3D 05 00 15 0F 87 9C CB 7E 01 27 E3 EA 01 50 12 10 00 DF 3D 00 00 20 ...

I have researched about Ethernet keepalive for quite a long time and I think it is time to check whether what I know is correct because I found no certainty in this topic. Ethernet keepalive is: to ...

I've been reading about the differences between MAC and IP addresses, and why we need both of them. To summarize, MAC addresses are physical unchangeable unique IDs for every single device while IP ...

On a CAT 7 Ethernet cable each twisted pair is individually shielded, and all pairs together are inside a shielded jacket: Colors of the wires may change, for instance I recently got my hands on a ...

What exactly is IPoE?

2 answers, 10.244 views ethernet ip pppoe
I am familiar with PPPoE but getting confused with the term IPoE. Is this same as usual ethernet with DHCP server? Does this have any auth built-in? How do I get authenticated? What can a client ...

I'm currently trying to investigate the extra benefit that Ethernet has to offer for the internet today. As far as i investigated & know, Ethernet gives us a new hardware, cables and functionality ...

I'm doing course for CCNA and in one lecture teacher showed how to make a crossover cable for Gigabit Ethernet. But as I know Gigabit Ethernet uses all wires of twisted pair cable and each pair is ...

I understand that hub always supports for half-duplex communication. In that case we should use one out of four UTP pairs. However, I read that for 10BaseT ethernet two pairs of UTP cables are used ...

I have knowledge terminating CAT5 UTP. But, for an installation in a remote office, the cable will be routed near a power source which we already know causes a substantial amount of 'noise' on ...

Per the question, Lets try to clarify a bit. Can a switch that has a router connected to it, segregate traffic (using a VLAN) from traffic that is part of the modem/router the switch is connected to? ...

My question is what is happening during the initial connection to a wireless network , is there an Ethernet connection first and then DHCP or something else is happening before the device receive an ...

My question is related to creating an unidirectional network cable. I used these tutorials: Receive-only UTP cables and Network Taps ONE-WAY CABLE FOR IDS DEPLOYMENT In principle it works by ...

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