Looks like Hierarchical CoS is what I'm looking for. http://www.juniper.net/techpubs/software/junos/junos91/swconfig-cos/introduction-to-hierarchical-schedulers.html#id-sec-sched-ex
On Tue, Oct 5, 2010 at 10:44 PM, Chris Evans <chrisccnpsp...@gmail.com>wrote: > I'm struggling to come up with a solution for my requirement.. Essentially > we are building a lab using GRE to link two sites over our enterprise > network. As this is a lab we want to limit the bandwidth that comes out of > the LAB to 15megabits, but using GigE for the physical connection on an m7i. > Essentially my first thought was implement a policer on the egress interface > limiting the maximum aggregate traffic to 15Mb, then implement a scheduler > on the GRE interface. I need to prioritize certain traffic leaving the lab > so I also want to use a scheduler to make sure that the voice traffic has > priority and has a 2Mb of traffic for example. > > I want to limit my EF traffic to 2Mb, AF to 2Mb, NC to 500Kb and best > effort to 10.5Mb under signs of congestion within that 15Mb CIR. > > 1st issue.. It appears that you cannot implement schedulers on GRE > interfaces, as this isn't possible the next thought was to implement a > scheduler on the egress GigE using the copy TOS to header feature on the GRE > interface. Is certain hardware required to be able to do this? EIQ2 pic for > example? > > 2nd issue..As I'm trying to do a CIR of 15mb, I don't believe a scheduler > will work as the interface really is GigE there are no signs of congestion, > so the scheduler doesn't kick in. I've tried the extra parameters under the > transmit rate to use exact, rate-limit, etc.. nothing do what I expect it to > do. I'm not sure if the scheduler limiters are always active or only in > signs of congestion. > > > I've made it work by breaking out and creating individual policers per > forwarding class, however this isn't as sexy as I have to hard limit each > forwarding class within the aggregate 15Mb CIR. Thus it denies me the > possibility of the bandwidth being dynamic across all 4 forwarding classes. > > Is this configuration even possible with Juniper devices? > > Thanks > > Chris > _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp