Cisco Catalyst 2924XL EN and VOIP Priority Queing
 

I have setup my vlans and etc. and in regards to separating my traffic on my network, my next task is to setup priority queing,TOS or COS and bandwidth management for my voice traffic.

http://www.linuxquestions.org/questi...agging-616232/

Does anyone know if my Catalyst 2924XL EN can do this and if I need to do anything on the Linux/Firewall/Router for priority queing,TOS or COS and bandwidth management?

I have figured out that I can prioritize traffic using COS. Here is a snippet from a AVAYA setup:

[PHP]Catalyst 2900 XL series switches support two queues per port on the 10/100 Ethernet interfaces.
Port priority value or CoS value 0-3 maps to a low priority queue (queue1) on the egress port and
port priority value or CoS value 4-7 maps to the high priority queue (queue 2). The switch will
honor the incoming CoS value in the 802.1Q tag when the switch ports are configured in 802.1Q
trunking mode. Priority scheduling is applied between the queues, which will assure that the high
priority queue is always serviced before scheduling the low priority traffic. These features enable
prioritized mission critical traffic, such as VoIP, over other regular traffic. The low priority
queues will experience tail drop during congestion when there is traffic in the high priority
queue, which means that the low priority traffic will be dropped first.
2 Information in this section was derived from lab experience and product documentation available from Cisco.
FS;SZ Reviewed:
WCH/JK 9/11/02
Solution & Interoperability Test Lab Application Notes
©2002 Avaya Inc. All Rights Reserved.
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QoS-S8700.doc
The Catalyst 2900 switch handles VLAN 0 traffic like the Catalyst 6500 switch. It uses its port
native VLAN to carry traffic from VLAN 0. Figure 9 is a configuration for Cisco Catalyst 2924
switch.

Now is there anything that has to be done on the Linux/Firewall/Router for CoS or TOS?