I will be setting my network with vlans using 3560-PoE switches and ill be using IP-Phones + Desktop per interface connection and my current IP settings are in Class B IP address (10.220.0.0 255.255.0.0).
My IP Phones are in 10.220.5.0 /16 ip block and my Desktops are in 10.220.15.0 /16 ip blocks of course they will communicate because they're in the same SubnetMask.
If i make vlans(eg;below), will ip phones still works if i change the IP Phone mask to class C /24.?
(VLAN10)Desktop Group 1: 10.220.15.0 /24
(VLAN20)Desktop Group 2: 10.220.16.0 /24
(VLAN30)Desktop Group 3: 10.220.17.0 /24
If I assign the IP-Phone IP block to a certain VLAN, how will the addressing be considering Desktop and IP-Phone are in different IP block using a single interface?
Can I set a single Interface to accept multiple vlan membership just to make sure the two different device can use their IPs without VLAN conflicts?
The answer to all your questions is, Yes. As you suggested, you can create smaller subnets to meet this requirement. A physical switchport can support data & voice VLANs simultaneously. There are two ways this can be done. See the below link for more details.
As a matter of fact, you are better off keeping the voice and data traffic separate to avoid problems with voice quality. Processing in voice VLAN should be kept to a minimum for better performance. Keeping data/voice in separate VLANs would limit the broadcasts in voice VLAN as that would be a preffered setup for voice setup. Moreover, any STP problems in your data network will not impact the voice VLAN.
Q1: It is good design practice to use different vlans for voice and data. The sizing of these may very with the number of devices that is required. Do not make them too large (>250 devices), it will reduce performance.
Q2: IP adresses and vlans are not necessarily related. They are on different layer of the OSI model. The connectivity between data and IP phones must be realized at layer3 via IP routing. On a network we most often assign a certain IP range to a certain vlan. Two vlans are not interconnected; we could just as well use two hubs to assign the ip's to.
Q3: A switch port that's configured as a trunk does exactly that. For the ports where an IP phone is plugged in the basic config is as follows:
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.