Hi David, Thanks for the video. Can you please explain if there are two layer 3 switches connected to each other having redundancy and each these layer 3 switches are connected to other layer 2 switches with redundant connection to both these layer 3 switches. So if layer 3 is down, still communication need to take place (including intervlan routing). Then how and where will be configuring the gateway for these vlans as both layer 3 switches are in used for redundancy (please note they are not stacked). Thankyou
You would need to use a first hop redundancy protocol like HSRP or GLBP. Check the video on HSRP (th-cam.com/video/BMJhbwISOtI/w-d-xo.html) to get an idea of how it works. The video demonstrates it using Cisco routers but you can do the same thing with the layer 3 switches VLAN interfaces.
Your videos are amazing. Their helping me understand my ccna studies much better. One thing I’m lost about here is, can the layer 3 switch be the dhcp server or will the firewall/router still be the dhcp server?
I'm glad they are helpful. A layer 3 switch can be a DHCP server if needed. On a live network I prefer to use a server as the DHCP server rather than the layer 3 switch, router, or firewall, but it can work in a pinch.
@@ddaltonyvcc so in that case the server handles dhcp, the layer 3 handles inter network routing and I would make dns four 1s. The firewall inspects traffic going in and out of the network and the router just handles routing externally? Is that the best practice?
How can you stop intervlan routing on layer 3 switch? Say theres 4 vlans. Vlan 10,vlan 20,vlan 30,vlan 40. You want all vlan to access vlan 10 only and all vlans cant talk with other vlans?
Very helpful! Thank you!
I'm not a networking guy but I was trying to interconnect the VLANs on our stack and this solves it!
I'm glad I could be helpful.
Thanks Sir .........This video is very helpful for me
Glad it was helpful.
Hi David, Thanks for the video. Can you please explain if there are two layer 3 switches connected to each other having redundancy and each these layer 3 switches are connected to other layer 2 switches with redundant connection to both these layer 3 switches. So if layer 3 is down, still communication need to take place (including intervlan routing). Then how and where will be configuring the gateway for these vlans as both layer 3 switches are in used for redundancy (please note they are not stacked). Thankyou
You would need to use a first hop redundancy protocol like HSRP or GLBP. Check the video on HSRP (th-cam.com/video/BMJhbwISOtI/w-d-xo.html) to get an idea of how it works. The video demonstrates it using Cisco routers but you can do the same thing with the layer 3 switches VLAN interfaces.
Your videos are amazing. Their helping me understand my ccna studies much better. One thing I’m lost about here is, can the layer 3 switch be the dhcp server or will the firewall/router still be the dhcp server?
I'm glad they are helpful. A layer 3 switch can be a DHCP server if needed. On a live network I prefer to use a server as the DHCP server rather than the layer 3 switch, router, or firewall, but it can work in a pinch.
@@ddaltonyvcc so in that case the server handles dhcp, the layer 3 handles inter network routing and I would make dns four 1s. The firewall inspects traffic going in and out of the network and the router just handles routing externally? Is that the best practice?
How can you stop intervlan routing on layer 3 switch? Say theres 4 vlans. Vlan 10,vlan 20,vlan 30,vlan 40. You want all vlan to access vlan 10 only and all vlans cant talk with other vlans?
You wouldn't stop routing, you would want to block traffic with an access control list.
@@ddaltonyvcc thanks i didn’t know that… looking for a video now with how to set that up
@@joejoe2452, there are videos on this channel that illustrate how to setup ACLs. It is the same process on a layer 3 switch as it is on a router.
@@ddaltonyvcc thanks i will find it