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1 vote
1 answer
139 views

Are integrated networking devices, frequently called routers, of the switch type or of a router / NIC type?

Odom,Wendell-_CCNA_200-301_Official_Cert_Guide,_Volume_1.pdf : many SOHO Ethernet LANs today combine the router and switch into a single device. Vendors sell consumer-grade integrated networking ...
John Smith's user avatar
1 vote
2 answers
570 views

How do routers. switches, bridges and hubs deal with corrupted data?

By data corruption I mean frame/packet corruption, we can stick to the corruption due to a collision for simplicity. I know that switches can detect frame corruption if they are not set to cut-...
zajer's user avatar
  • 155
1 vote
0 answers
387 views

How Cisco Line Protocol works

How do Cisco Line Protocol works ? I could read this: https://www.cisco.com/c/en/us/support/docs/content-networking/keepalives/118390-technote-keepalive-00.html, about Ethernet Interfaces keepalive ...
bdes31's user avatar
  • 1,085
0 votes
1 answer
645 views

If physical switches are necessary in a SDN

Exploring how to implement a Software Defined Network and here it explains that an SDN switch is only dealing with the data layer. But then: Do We Need Special SDN Switches for SDN Networking? ...
Lance's user avatar
  • 107
6 votes
2 answers
495 views

How to connect a special device in a network

I have a question which is puzzling me. I have a couple of custom electronic devices (are identical, one is a master and the other is a slave) which implement only up to level 2 of the ISO/OSI layer, ...
Lukariello's user avatar
0 votes
2 answers
359 views

Can a switch segregate traffic that is before the switch from after the switch?

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? ...
Matt's user avatar
  • 11
2 votes
2 answers
2k views

Can I connect to Cisco router's AUX port from a switch Ethernet port?

I know from this question console connection via Cisco router's AUX port that it's possible to connect from a Cisco router to the switch/router's console port but I would like to know if it's ...
kenfire's user avatar
  • 145
1 vote
2 answers
182 views

How does equipment know it has devices connected to it?

I was wondering how Ethernet equipment (for example a switch) knows that something have been plugged in and is up ? Is there a pair of copper wire dedicated for that ? Or a bit exchange ? On which ...
Thomas Barbier's user avatar
16 votes
3 answers
5k views

Why would a switch be connected to a router using three ethernet cables?

In our rented office, we have a router (BT smart hub) connected to a large switch (model unknown). The two are connected using three ethernet cables, thus: ----------------------- | 1 2 3 4 ...
EvilDr's user avatar
  • 273
2 votes
1 answer
227 views

How can I figure to connect my NVR in this topology? [closed]

I´m trying to configure a NVR to my company´s network. There is a router from which I will assign a fixed public IP to the NVR. I could connect the NVR directly to the Router which has 5 different ...
user3070616's user avatar
4 votes
2 answers
10k views

Assign IP address using Router and Switch (DHCP)

I currently have a router and I was wondering if I could connect one of the LAN ports to a switch to connect more devices through Ethernet. I need each device to have a local IP address. I know that ...
Xavier Merino's user avatar
6 votes
1 answer
735 views

Spoofing Ethernet with Source as Broadcast

I was wondering the following: Assume I am attached to a switch with an Ethernet Cable and I try to spoof the source/origin MAC address of an Ethernet frame with FF:FF:FF:FF:FF:FF. How would it behave?...
Christian Veenman's user avatar
2 votes
2 answers
164 views

How to evaluate and do a network simulation for an already existing LAN? [closed]

I'm an intern in a non-technological firm. it's a big company with 99 PCs and network printers. And they have the messiest Racks and LAN ever. I'm supposed to go through it, make a schema of the ...
sirine.ch's user avatar
2 votes
1 answer
195 views

why network clock is required in the router?

what is the usage of network clock in the router? Is it something to do only with pseudowire T1/E1? What I am looking is the need of network clock - syncE in the router? What is the significance? Why ...
dexterous's user avatar
  • 325
3 votes
3 answers
455 views

Are modems needed to connect routers?

I apologize for the stupid question; I'm trying to wrap my head around the basics of networking. Also, please feel free to direct me to the right SE forum, if this is not the right place. My question ...
Readingtao's user avatar

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