I am using a PacketShaper in my network. My bandwidth was 10Mbps and now i have updated it to 12Mbps. The problem is i dont have money to extend the licence. So I am thinking of a solution to use QoS on switches and routers for the rest of 2Mbps (few classes: maybe 2 or 3)!
My traffic flow is the following : core switch -> PIX firewall-> screen switch->screen router! The screen switches are 2950G and the screen router is 3845. I was thinking to make marking on screen switch and shaping on screen router (cause on firewalls i have VPNs ended thats why i just excluded core switches here). These devices are not doing complex things in the network, the router has only 2 BGP neighbours (no other routing protocol, only static routes). My question is, could I implement such thing? it will be a problem regarding memory for the specified devices? what are your suggestions? did somebody implemented this double solution with QoS and PacketShaper for shaping in his network? Thanks a lot!
The shaper should be used (company policy) but now i have to mix it with QoS on router (and/or) switch.What i have to do is just allow some amount of bandwidth per business traffic for lets say 2 or 3 classes(projects) that will be in those 2 Mbps difference. The shaper is placed between screen switch an screen router. What i have to do is bypass the shaper for specific traffic. Question is? should i mark something on the switch? just before shaper...and shape traffic on router or do all on the router?
"Question is? should i mark something on the switch? just before shaper...and shape traffic on router or do all on the router? "
Generally, and should also be true for your switch and router, router has better QoS featurs including classification and shaping. So, if possible, would try to utilize QoS features of just the router.
As to doing some kind of shaping for the extra 2 or 3 classes, it's probably possible but might not work as effectively as letting the router manage the total bandwidth allocation. This is assuming you permit classes to utilize bandwidth not being used by other classes.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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