[j-nsp] WAN input prioritization on MX

[Gustavo Santos]

Hi, After reading your comments, I will try to explain better  what I'm
trying to achieve. I'm trying to do classification and queueing on an
ingress interface.

When the wan interface gets rate limit threshold (500mbits), all the
traffic that is destinated to the high priority destination subnet gets
precedence and no packet loss or lower packet loss, than the low priority.

The egress traffic to these subnets goes to two different physical
interfaces ( ge-1/0/5 and ge-1/0/5) So , from what I read from you, the
ingress interface should "see" the rate limit of 500mbits gets congestion
and then discard packets from wan that have destination (address) subnet
that differs from the high priority subnet.

For instance: If the current wan ingress traffic total is 450mbits and high
priority traffic is 100mbits, and low priority is 350mbits = no packet
discard, but if traffic towards high priority subnet is 300mbits and low
priority is 300mbits, then the queuing / scheduler will drop the low
priority traffic until the sources traffic gets shaped to 200mbits for the
low priority and the high priority gets 300mbits.

On Linux it's quite simple to achieve.

Gustavo Santos
Analista de Redes
CCNA , MTCNA , MTCRE, MTCINE, JUNCIA-ER



2012/10/15 Doug Hanks <dhanks at juniper.net>

> >If you're having a hard time writing
> >the proper code-points to a packet, I would assume the packets are
> >classified correctly.
>
> s/correctly/incorrectly/
>
>
>