I am trying to locate information on how to use QoS or some priority settings for a data vlan. Any assistance would be greatly appreciated. Here is the scenario:
I have 3 Vlans (let’s call them 10, 20 & 30). Vlan 10 and 20 are normal user data Vlans, while Vlan 30 has data collection devices that must have priority data throughput. At the core is a Cisco 4500 (configured with SVI’s for the Vlans) and we have several spoke 2960’s. What I am hoping for is a way to provide Vlan 30 priority if the traffic on the network should start to create bottle neck. All the examples I have seen are related to Voice traffic and IP phones which is not what I am looking for. Is there a way to configure a specific data Vlan that would give the data on that Vlan priority processing to all other traffic?
I have not been able to locate any examples on how to configure this and maybe I am going about it wrong. I have found the following command, but unable to locate any documentation on how and what it does:
Switch# switchport priority extend cos <0-7>
What other configuration commands are required and what does the 0-7 represent? What needs to be configured on each switch (access and core) Sorry for not having more specifics, but this is an entirely new area for me.
Thanks in advance.
