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ASA Qos Placement Guideliness

Hi,

Following is the brief setup I have.

1. ASA Firewall 5520 (2 nos with Active Standby configuration).

2. Two Nos of Cisco 1750 router running HSRP with dual ISP connectivity.

I would like to deploy Qos Policy for Internet Traffic and would like to know the best placement for Qos policy enforcement.

Whether 1. Firewall outside interface or

2. Router Serial Interface connecting the ISP.

Can any body suggest with advantage & disadvantage.

Regds

Ravi

1 REPLY
Silver

Re: ASA Qos Placement Guideliness

I have always heard it is best to apply QoS end to end.

Say you place the policy on the asa and it sends the packet to the router. The router is using FiFO. But it's links are fully loaded and has to queue the traffic. Other low priority traffic may have arrived prior to the high priority. The router will send the low priority traffic first.

Configure it on both.

Hope this helps.

Chad

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