Per Site QOS policy with Cisco IOS-XE
tyler.haske at gmail.com
Wed May 8 14:02:07 UTC 2013
If you want to prevent a PE router from deciding which ingress packets to
drop, the only plan is to send packets to spoke sites at or below the spoke
line-rate. The only good way to do that is shaping on the hub router.
shape average 100000000 < --- 100Mbps parent shaper.
shape average 1536000
shape average 3072000
... whatever you typically use here....
On Wed, May 1, 2013 at 5:03 PM, Wes Tribble <westribble at gmail.com> wrote:
> I have a question for the QOS gurus out there.
> We are having some problems with packet loss for our
> smaller MPLS locations. This packet loss is due to the large speed
> differential on our Hub site(150mb/s) in comparison the the branch office
> locations(single T-1 to 4.5mb/s multilinks). This packet loss only seems
> to impact really bursty applications like our Web Proxy. I have been
> around and around with WindStream to give me some extra buffer or enable
> random early detection on the smaller interfaces in my MPLS network. So
> far they are unwilling to do a custom policy and none of their standard
> policies have enough buffer to handle the bursts. They do FIFO tail drop
> in every queue, so I can’t even choose a policy that has WRED implemented.
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