![Physical Logik](/img/default-banner.jpg)
- 49
- 143 103
Physical Logik
Nigeria
เข้าร่วมเมื่อ 8 ม.ค. 2021
Here is where you learn about computer networking in a fun and easy way. Do hit the subscribe button if you like any of our videos!
How Switches Really Process Frames || Hub And Bridge And Switch || VLAN 2
Learn about the mode of operation of a bridge/switch on a Local Area Network and its importance. This second video in the VLAN series, will also show you the basic concepts about the operations of hubs, bridges, and switches on a Local Area Network.
Compared to a hub, a bridge is more intelligent, as it does not always have to repeat a received signal to all the end stations connected to it. A bridge is capable of forwarding data frames received on its port to the intended destination, by reading the destination MAC address of the frame and sending out the on the port where this end station is attached based on a special database. This capability makes the bridge a layer 2 device, as opposed to a hub which a layer 1 device as it cannot read layer 2 information.
Please subscribe and share.
Thanks for watching!
Compared to a hub, a bridge is more intelligent, as it does not always have to repeat a received signal to all the end stations connected to it. A bridge is capable of forwarding data frames received on its port to the intended destination, by reading the destination MAC address of the frame and sending out the on the port where this end station is attached based on a special database. This capability makes the bridge a layer 2 device, as opposed to a hub which a layer 1 device as it cannot read layer 2 information.
Please subscribe and share.
Thanks for watching!
มุมมอง: 64
วีดีโอ
The Real Meaning Of A LAN || VLAN Basics || Ethernet || Shared Ethernet Medium || VLAN 1
มุมมอง 94หลายเดือนก่อน
The very first video in the VLAN series is the meaning of a LAN. I mean, LAN existed before VLAN, WLAN, or xLAN. Funny but true. However, this is important to enable you understand the concept of VLANs better. LAN, an acronym for Local Area Network, is a type of computer network which falls under the category of networks based on geographical coverage area. LANs typically occupy between 1 to 10...
What Is A PoE PSE? || PoE Source || Powered Devices || Power Over Ethernet
มุมมอง 2456 หลายเดือนก่อน
This video explains the simple concept of a PSE. A PSE is a network device, that generates power for redistribution to powered devices or PDs through an Ethernet cable on the network. As an illustration, we’ll look at three different scenarios, For the first scenario, we’ll consider an end span PSE, which is usually a network switch, router, firewall, or any network device with PoE-capable port...
Stop The ARP Conflict Now! || ARP Probe & ARP Announcement ||ARP 6
มุมมอง 1.7Kปีที่แล้ว
This video explains the simple concept and methods for resolve ARP conflict issues defined in RFC 5227. ]A device with an IP address must have obtained it through a configuring agent, this configuring agent may be a network administrator who performs manual configuration of the host, A DHCP server that dynamically assigns this IP address, or even through software such as in IPv4 link-local addr...
Gratuitous ARP || ARP Table Update || ARP 7
มุมมอง 3Kปีที่แล้ว
This video describes the concept of gratuitous ARP on a network in the proactive update of the ARP cache table when a host experiences a change in IP address or MAC address. Please share, subscribe, and turn on bell notifications so you'll be the first to know when we release a new video like this one. The Gratuitous ARP message might be seen as unnecessary, but it is in fact a measure taken by...
The Arp Cache Table: A Must-know For Every Computer Nerd! || ARP 4
มุมมอง 1.3Kปีที่แล้ว
This video teaches the simple concept of ARP cache tables, and further goes ahead to describe some default ARP timeout values for well-known vendors. An arp cache table comprises a list of ARP entries showing the IP address to MAC address mappings of devices on the local network. An ARP entry can be static, i.e manually configured by an administrator, and it’s suitable if the MAC address & IP a...
Physical Logik Top 10 Videos Since We Started
มุมมอง 3.5Kปีที่แล้ว
This video is our little way of appreciating our viewers for the time spent on our channel. More videos will be coming up soon. We sometimes experience delays due to lack of all the necessary facilities and resources to properly run the channel. We hope to reinvest revenue generated to make the channel better as time goes on. Thank you for your support all the way. This will be on here to help ...
ARP Process Well-Explained || ARP Encapsulation Step-By-Step || ARP 3
มุมมอง 842ปีที่แล้ว
Your one-stop explanation on the concept of ARP. This content explains, using well-coordinated demonstrations, to describe the process by which a host obtains the MAC address mapped to an IP address of another host on a TCP/IP network. ARP process requires exchange of two messages: ARP request which is flooded on the link, i.e., sent as a broadcast message and received by all hosts on the link....
Address Resolution Protocol Overview || ARP2
มุมมอง 406ปีที่แล้ว
Address Resolution Protocol Overview || ARP2
DHCP Operations || DORA Process || DHCP 3
มุมมอง 8Kปีที่แล้ว
DHCP Operations || DORA Process || DHCP 3
Other DHCP Messages || DHCP Release || DHCP Inform || DHCP 5
มุมมอง 1.4Kปีที่แล้ว
Other DHCP Messages || DHCP Release || DHCP Inform || DHCP 5
DHCP Relay Agent || IP Helper Address || DHCP 7
มุมมอง 16Kปีที่แล้ว
DHCP Relay Agent || IP Helper Address || DHCP 7
DHCP Lease TIme || DHCP Renew And Rebind || T1 & T2 || DHCP 4
มุมมอง 4.7Kปีที่แล้ว
DHCP Lease TIme || DHCP Renew And Rebind || T1 & T2 || DHCP 4
DHCP Overview || BOOTP || RARP || DHCP 2
มุมมอง 8972 ปีที่แล้ว
DHCP Overview || BOOTP || RARP || DHCP 2
Methods Of Assigning IP Addresses || DHCP 1
มุมมอง 1.3K2 ปีที่แล้ว
Methods Of Assigning IP Addresses || DHCP 1
Private Network Vs Public Network || VPN Overview || IPv4 Address Exhaustion 1
มุมมอง 2.5K2 ปีที่แล้ว
Private Network Vs Public Network || VPN Overview || IPv4 Address Exhaustion 1
APIPA And The Limited Broadcast Address || DHCP || Special IP Addresses 3
มุมมอง 1.3K2 ปีที่แล้ว
APIPA And The Limited Broadcast Address || DHCP || Special IP Addresses 3
0.0.0.0 vs 127.0.0.1 || Local host || Special IP addresses 2
มุมมอง 22K2 ปีที่แล้ว
0.0.0.0 vs 127.0.0.1 || Local host || Special IP addresses 2
Computer Network Architectures || Special IP addresses 1 || Adhoc networks
มุมมอง 5292 ปีที่แล้ว
Computer Network Architectures || Special IP addresses 1 || Adhoc networks
What is an IP address? || Classes of IP addresses || Internet Protocol
มุมมอง 5692 ปีที่แล้ว
What is an IP address? || Classes of IP addresses || Internet Protocol
How to convert Binary to Decimal || Number Systems || Hexadecimal || Binary || Decimal
มุมมอง 3513 ปีที่แล้ว
How to convert Binary to Decimal || Number Systems || Hexadecimal || Binary || Decimal
Collision Domain and Broadcast Domain || Ethernet || Hub || Switch || Router
มุมมอง 12K3 ปีที่แล้ว
Collision Domain and Broadcast Domain || Ethernet || Hub || Switch || Router
Physical and Logical Topologies || Star || Bus || Mesh || Ring || || Multipoint Network Topology
มุมมอง 7973 ปีที่แล้ว
Physical and Logical Topologies || Star || Bus || Mesh || Ring || || Multipoint Network Topology
Types of Networks || LAN || MAN || CAN || WAN || PAN || Network classifications
มุมมอง 4453 ปีที่แล้ว
Types of Networks || LAN || MAN || CAN || WAN || PAN || Network classifications
Size of Ethernet Frame || Frame Format || Ethernet v2 frame || Runt frames || Late collision
มุมมอง 6823 ปีที่แล้ว
Size of Ethernet Frame || Frame Format || Ethernet v2 frame || Runt frames || Late collision
Carrier Sense Multiple Access with Collision Detection (CSMA/CD) on Ethernet
มุมมอง 2.3K3 ปีที่แล้ว
Carrier Sense Multiple Access with Collision Detection (CSMA/CD) on Ethernet
Auto-negotiation on Ethernet || Why your link is probably failing to be established
มุมมอง 6K3 ปีที่แล้ว
Auto-negotiation on Ethernet || Why your link is probably failing to be established
What is a switch in networking? || Ethernet Switch || the hub and switch
มุมมอง 4613 ปีที่แล้ว
What is a switch in networking? || Ethernet Switch || the hub and switch
74715 Jennyfer Passage
61055 Sally Island
Very greatly explained!
Really great explanation! Thank you!
👌👌👌👌👌👌💯💯💯💯💯💯
Why would you call it DSP?
DHCP is the word.
Love this videos..
You videos are addictive thank you..this would be great to go over the night before an Exam!!
If 1000 likes were possible!! Thank you..
Wow you just explained how the tree fits in with this STP concept thank you Great help..
Your illustrations are awesome makes it easy to follow..thank you..
❤❤❤
You know, there’s like so many videos of this that are 10-20 mins long and I still had trouble understanding it. This 30 second clip was all I neeeded
We're glad that our learning resource was all you needed. You're welcome to watch more of our videos. 🎉🎉🎉
😅
Excellent.... thanks for sharing
You're officially awesome yashaomani. Thanks for watching.
Just well break down for fast assimilation, this is well articulated
Thank you for the feedback Idris! We have more to be released for this series. Please stay tuned!
I have 1 router, 4 switches, 7 hubs, 1 bridge and 8 PCs. 1. The router connected to the switch1, switch2, hub1 and bridge. 2. The switch1 is connected to the other two switches, switch3 and switch4 and pc1 is connected to switch 3 and pc2 is connected to switch 4. 3. The switch 2 is connected to the other two hubs, hub2 and hub3 and pc3 is connected to hub2 and pc4 is connected to hub3. 4. The hub1 is connected to the other two hubs, hub4 and hub5 and pc5 is connected to hub4 and pc6 is connected to hub5. 5. The bridge is connected to the other two hubs, hub6 and hub7 and pc7 is connected to hub6 and pc8 is connected to hub7. Identify the broadcast and collision domains in the given text and enter the number of Collision Domains and Broadcast Domains. Please explain.
Collision domain count: 12 Broadcast domain count: 4 Explanation... Assuming all devices belong to the same VLAN and only one VLAN is used on the network, we can see that: (1) There are only 4 broadcast domains as only the router can isolate any broadcast on any of the segments its ports are connected to. These include broadcast segments involving SW1, SW3, SW4, PC1 & PC2 (segment 1); SW2, Hub2, Hub3, PC3, & PC4 (segment 2); Hub1, Hub4, Hub5, PC5 & PC6 (segment 3); and Bridge, Hub6, Hub7, PC7 & PC8 (segment 4) (2) There are also 12 collision domains described below: i. R - - > SW1 ii. R - - > SW2 iii. R - - > (Hub1, Hub4, Hub5, PC5, and PC6) iv. R - - > Bridge v. SW1 - - > SW3 vi. SW1 - - > SW4 vii. SW3 - - > PC1 viii. SW4 - - > PC2 ix. SW2 - - > (Hub2, PC3) x. SW2 - - > (Hub3, PC4) xi. Bridge - - > (Hub6, PC7) xii. Bridge - - > (Hub7, PC8) Thanks for stopping by!
@@Physical_Logik Thank you so much for explaining....😊😊😊
@@Physical_Logik Can i send Network Diagram for analyse all things in detail???
@@kartikpatel3595 yes, you can send us an email.
@@Physical_Logik provide email address please
Thank you, this is very useful. A suggestion is to have a thumbnail of the short the topic name that you're discussing. So that viewer can search up easier
Yes, that's recommended. I'm not sure why TH-cam doesn't let me change my TH-cam shorts thumbnail
nice :3
I'm glad you like it. 👍
Do this series missing some videos or not? Because the first video are named ARP 2 and other ones are following the same prefix which lead me to believe that, the video 1 and 4 are missing. I thank you for your great explanations I really much liked them!
excellent presentation
Glad you liked it!
thanks bro, subscribed, and best follow on Instagram
Your videos are gems for actual underneath working of systems
awesome videos thank you
Great video!
Glad you enjoyed it. 👍
This stuff is amazing, it explains VLANs in a more concise and simplistic way than most of the videos I have seen online
Thanks you Loveday for the feedback. Keep learning, keep growing...
Excellent ❤❤❤
Good if possible make it more elaborated
Good simulation
Great, short and informative video! Thank you!
Quick and informative! Really well done! I have question about Rebinding state: In the Request packet, do we ask for renewal of the existing lease? If so, how would other DHCP servers with different IP pools react? Simple ignore the packets? Or would they send the new IP? Thanks for the video!
In the rebinding state, the. DHCP client begins to broadcast DHCP packets in order to extend its lease as the initial unicast message to the server did not get a response. Also, the RFC for DHCP clearly states that "The client MUST NOT include a 'server identifier' in the DHCPREQUEST message." both in the renewing state and rebinding state. As long as the server responds with the requested IP address by the client and the 'xid' field in the DHCPACK message is the same as in the DHCP REQUEST message, the client will continue forwarding traffic normally and enter the binding state.
Thank you!
Another valuable knowledge acquired.
Thanks for the value.
WOW.
Comprehensive
Thank you for the feedback Raphael! More videos are coming.
Thank you!
Liked, subscribed and leaving comment! I learned something new and it was very well encapsulated. :)
Welcome Aboard Rishi Bajaj, and thanks for the feedback. We're happy to welcome you.
Well done!
sir can you share the ppt that you explained in the video sir
Alright. Please share an email address.
,,,,,r3d
I think opcode in the header should be 2 since it's not a request. It's a reply (without any request).
Thanks alot
You are welcome 😊.
I just watched a bunch of videos trying to understand this topic, and this is the best video considering time-info-value… Props to the instructor! It makes it easy to understand!
Exactly what i searched for, Thanks!
Thanks, Hangman, for the feedback. You could also check out more of our videos 📹 .👌
@@Physical_Logiki would be interested in knowing If theres a Tangible Difference between IP helper and DHCP relay because i think ChatGPT is gaslighting me Info believing Theres a difference
@Hangman11 There's no difference as they are one and the same. In the cisco world, the "ip-helper address" command implements the DHCP Relay functionality, and on platforms such as Huawei's VRP or YunShan configuration platforms, it's "dhcp relay server-ip" So between the dhcp relay and ip-helper, it could be a command line instruction or the feature itself. But they're one and the same.
Thanks for this awesome presentation.
We're glad you liked the presentation.
Very neat presentation. I am using it to teach my students.
Domain - an area/portion where a given rule applies - certain activity takes effect Collision domain - a transmission from a source reaches every node in that network segment - all transmissions always/default broadcast - hubs and simple cable connections are default broadcast - all interfaces on a hub are on the same collision domain Broadcast domain - a transmission from a source goes to a specific destination node via usage of MAC addresses, unless it's specifically send as a broadcast - all interfaces on a switch are in different collision domain but same broadcast domain - all interfaces on a router are on a different broadcast domain
Yes, this is very correct seetsamolapo, you are awesome!
@@Physical_Logikno you're awesome. Just taking notes from your video. More networking videos even cybersecurity videos would be appreciated. This topic was super well explained and it's foundational to understanding networking
Great content
Thanks so much. We appreciate your feedback
Thanks and great teaching
Thanks Jean Chery. We appreciate the feedback.
Hi I like your videos. I need your help i work in a gps company and you now to configure the device we need to point it to a domain and port server , now have can we setup a relay in between?
This relay setup, is it based on the DHCP protocol? And if yes, which OS are you using on the software platform?
@@Physical_Logik We haven't set it up in any protocol yet