thank for the clear instructions

Very good explanation of VLAN routing. Thank you very much sir.

Nice job clear and demonstrative

Thanks!! very helpful :D

thanks sir. your videos are great

This is amazing Video Ezxprt is also A professional Institution In Pakistan

@scottmarlin3637

6 жыл бұрын

ezxprt Thanks!

Thanks for the nice explanations, Do you have videos for all Todd Lamelle Lab exercises? I am having difficulty in finding a few on youtube.

@scottmarlin3637

6 жыл бұрын

Sorry, Rahul - I only recorded certain ones; not all of them. I don't even think I did every exercise, to be honest, just a few in each category.

can we use intervlan routing on both (Multilayer switch and router) using simultaneously.

How can i ping the router if i'm setting svi on the multilayer switch ? Because i can ping any svi, i can ping any vlan, but when i want to ping the router...and so another network..i can't. Do i have to set a route between the switch and router's interfaces ?

Thanks for the nice tutorial, Scott. I am confused with the IP addresses. On the example with PC0 the IP is 10.10.10.25/24. Should not the subnet be /8? Since it is not subnetted, the first octet is 10 and it belongs to class A

@scottmarlin3637

6 жыл бұрын

I don't have the documentation for this activity at hand right now, but you could do this either way. I mentioned in the beginning of the video that this was a pre-designed network topology; I can only assume I went with what the book had for the activity in regards to network sizes. Aside from that, the issue that arises with starting with a /8 is that it becomes more challenging to do any variable length subnet mask configurations later. If we know that we'll have less than 250 devices on that local network, there's no reason not to start with a VLSM at /24 (or /23, or /22, depending on how many addresses you want to hold in reserve for the growth of that network). If we start with /8, we'll have to come back and reconfigure everything later when we want to break that network into separate segments. If it helps, any network starting 10.X as a classful (CIRD) network would have a subnet starting at /8; VLSM ('classless') networking allows us to make the network smaller (/9, /10, /11...) so we can allocate fewer address per network, and end up with more of these smaller networks. This link might help explain VLSM a little better: www.tutorialspoint.com/ipv4/ipv4_vlsm.htm Also, you can do some additional research 'CIDR vs VLSM'; the primary focus is on the useful allocation of IP addresses (a /8 can host over 4 million devices; why have such a large network for a department of 10 staff?).

@tim_bize

6 жыл бұрын

Appreciate your prompt and thorough responses, Scott

@FallenHeartBeat

6 жыл бұрын

Tim Bize keep in mind as well a lot of real world scenarios use classless routing as opposed to classfull

@tim_bize

6 жыл бұрын

Thanks for the input, FallenHeartBeat!

@martindedivanaj7458

5 жыл бұрын

subnet trumps the IP, so idk if it matters?

Hey there! Could your network be considered redundant as in the switches being redundant ? I just finished highschool and my final task is to write a Thesis/dissertion on redundancy in networking. One of the subtasks is that I make a multilayered network which has either a redundant switch or router, and I was wondering if one of your switches worked as a redundant switch? If so it would be great help if you could send me the .pka of what you did. If there is on redundancy in this network it would be amazing if you could help/assist me in anyway! Time is of the essence, please help! Thanks in advance, cheers from Croatia

@scottmarlin3637

7 жыл бұрын

To have true redundancy, you need to have it at the device level, the layer 2 switch level, and the layer 3 routing level. This network only has redundancy at the layer 2 (switches). Full redundancy would be having 2 clustered servers (meaning both servers provide the same services) connected to different switches (so the loss of one switch wouldn't take the service offline). Then, each switch would have redundant links to the gateway (as shown in the video, so that there isn't any one switch that takes the whole network offline). Then, the redundant switch links would need to have multiple gateway paths (multiple links to separate ISPs, so that if one ISP loses service, the network can still send/receive data by using the other ISP link). Please see the link below; there's a diagram of true redundancy about a third of the way down. www.cisco.com/c/en/us/support/docs/application-networking-services/css-11500-series-content-services-switches/50405-box-to-box-config.html

@nikoobjedovic3524

7 жыл бұрын

To be honest I am not sure if I have to go as deep as layer 3, that I will have to ask my proffesor about (and if you are wondering why my proffesor isn't helping me, it's because professors can't do anything but explain the task we are given), however I'm sure that redundancy at the second layer is a good start! Thank you for answering so quickly and pointing me at the right direction! Cheers once again :)

@nikoobjedovic3524

7 жыл бұрын

Oh, and btw, if there is any way you could send the .pka of this file to my email: niko.objedovic@gmail.com, that would be amazing!

Thanks for explanation . Can you share pka file?

Same question about the Management VLAN (1) IP 172.16.10.0/24. It looks like it belongs to the class B and the subnet mask is supposed to be /8.

@scottmarlin3637

6 жыл бұрын

I tried to address this as best I could in a short paragraph when I replied to your other question. I do recommend reviewing your classful subnet masks (10.X would be /8; 172.16.X would be /16; 192.168.0.X would be /24). While these network sizes (network IP, broadcast IP, total available IP addresses) are easy to remember, they're rarely the best use of each network address allocation. For example, your home network (likely a 192.168.0.X /24) can host up to 254 devices; even with home automation devices, you probably still have much less than 100 devices actually on the network. So while 192.168.0.X /24 is easy to use and remember, you've got over a hundred unnecessary (and likely never used) addresses. This problem becomes much more pronounced with larger networks (like a 10.X /8, which could be wasting millions of unused addresses).

Man, you should have linked by etherchannel

why does the ports 5,6 in two Layer 2 switches below are in trunk mode??

@scottmarlin3637

5 жыл бұрын

Using the ports as a trunk instead of an access port allows the port & switch to pass data from multiple networks (VLANs).

you could have used layer 3 switch to make gateway insted of router.why router ?

@scottmarlin3637

8 жыл бұрын

My answer is 2 parts: 1) Yes, for a simple network, you could use a multilayer switch (Layer 3 switch) as your gateway. However, in a more complex (less flat) network, in order to get the full benefit of routing protocols, you'll want to use an actual router. 2) Following the study guide, the first activities use a Layer 2 switch where I have a layer 3; the layer 3 was just for the last activity. So for the first activities, using a layer 2 switch, you'd need a router for the gateway.

would want to email you a diagram for some clarification

@scottmarlin3637

6 жыл бұрын

Cephas Ahiaku Are you familiar with Google Drive? It might be easier to upload your diagram there, and share the link here (allow anyone with the link to access the diagram, so I can see it). Did you have a specific question?

@ckahiaku

6 жыл бұрын

Scott Marlin I will do that. Asap

Why the fuck is the background green we can't see anything