design related question

[Vicky <vickyr () socal rr com>]

Hi there,


Just want to hear your thoughts (pros and cons) on placing qos appliance 
between the below choke points.

(a) appliance sitting between internal 
lan<->appliance<->dmz<->pix<->edge router<->wan cloud.

or

(b) appliance sitting between wan cloud<->edge 
router<->appliance<->dmz<->pix<->internal lan


Currently this appliance supports the following qos components w/ 45mbps 
support on eth0 and eth1:

-- shaping
-- buffering
-- policing


Any pointers to white papers, similar deployment, lesson learned or 
simply your feedback will be appreciated.


regards,
/vicky