Giving priority to an interface 1

[ArmyThumped]

I am not sure if it is possible so i am going to run it by you guys since you have been so helpful in the past. I have been trying to look up this topic for the last 5 hours and can not find anything. Either it is not possible or I am not useing the proper keywords. So here it is.

I need to find out if it is possible to configure cisco switch interfaces to be a higher priority when it comes to routing traffic. I thought it might have something to do with QoS but that only looks to be configurable for types of traffic not all traffic comeing from a single interface.

Here is what I will have set up in a few weeks. I will have a switch hooked up to a civilian satalite system giving us 2 megs down and 512 up shared by 20 people. There are key personnel that need to have better access so i want their traffic to be a higher priority.

Any suggestions would be appreciated.


Thanks again!
SPC Davis

 

[brianinms]

What model switch do you intend on using?

 

[lerdalt]

Actually from what you described, QoS might be the answer....you could prioritize the traffic from certain devices higher than others, and have it all go out the same interface.

 

[ArmyThumped]

Thank you lerdalt that is exactly what i need. After reading your post i refined my google search and found this juicy bit of info.

Configure the PC ports as access ports. The default priority on a port is zero. If needed, you can explicitly configure the port by issuing the switchport priority default <0-3> command so that the traffic that comes from those ports are queued in a lower priority queue.
Configure ports which receive tagged low-priority traffic by issuing the switch priority override command and the switchport priority default <0-3> command so that this traffic is queued in a low priority queue. The override option is available only on WS-X3524-PWR-XL and WS-X3548-XL with Cisco IOS® Software Release 12.0(5)XU and later.
Configure the ports connected to Cisco IP phones for 802.1Q trunking so that the switch acts on the dot1q/p priority from the phones. As a result, the switch queues these packets in the high priority queue. Configure InterSwitch Link (ISL) trunks to Cisco devices/server network interface cards (NICs), which support the encapsulation. The switch acts on the Class of Service (CoS) value present in the ISL frame.
Configure the ports connected to Cisco IP phones with a PC attached to the secondary port by issuing the extended trust configuration switchport priority extend COs <0-3> command so that these frames are queued in the low priority queue.
Configure the ports connected to Cisco IP phones with another Cisco IP phone attached to the secondary port by issuing the extended trust configuration switchport priority extend trust command so that these packets are queued to the high priority queue as well.
Configure the ports connected to non-Cisco IP phones (which cannot tag the dot1p value) by issuing the switch priority default <4-7> command so that these frames are queued in the high priority queue. All traffic received on this port is prioritized. Therefore, do not connect PC or other data traffic devices on this port.

 

[lerdalt]

Something to remember, is that the switch is only going to be doing a WRR queuing. You'll want to keep an eye on things to make certain it is doing what you are expecting.

Good Luck