Depending on your hardware you can have up to 16 forwarding classes. I wrote a very basic 3 class example here (Network Control, Expedited Forwarding, and BE) to get you started. Network Control is your control plane protocols. There are a lot more options than what is here. I would recommend checking out the CoS documentation ( http://www.juniper.net/techpubs/en_US/junos10.4/information-products/topic-collections/nce/qos-cos-overview/index.html) but the basic steps are:
1. Create your forwarding classes [edit class-of-service] set forwarding-class queue 0 BE set forwarding-class queue 2 EF set forwarding-class queue 3 NC 2. Create the schedulers for each class [edit class-of-service schedulers] set sched-BE transmit-rate percent <XX> set sched-BE buffer-size percent <XX> set sched-BE priority low set sched-EF transmit-rate percent <XX> set sched-EF buffer-size percent <XX> set sched-EF priority high set sched-NC transmit-rate percent 5 set sched-NC buffer-size percent 5 set sched-NC priority strict-high (5 percent is the default for network control on JunOS 10) 3. Map the schedulers to each forwarding class: [edit class-of-service scheduler-maps] set sched-map-llq forwarding-class BE scheduler sched-BE set sched-map-llq forwarding-class EF scheduler sched-EF set sched-map-llq forwarding-class NC scheduler sched-NC 4. Apply scheduler map to the interface: [edit class-of-service interfaces] set <interface> scheduler-map sched-map-llq --- In your case you would create additional forwarding classes for each of your BE queues. HTH, Matt On Mon, Jan 31, 2011 at 12:51 AM, Vlad Ion <[email protected]> wrote: > Hi, > > Can anyone lend a hand with a sample configuration of QoS on Juniper? I am > trying to have something really close to an existing Cisco deployment of > LLQ > with 1 PQ for VoIP and routing protocols (OSPF/IS-IS, BGP, LDP, RSVP), 3 > CBWFQ classes (OAM, Services, IPSec VPNs) and a default class with > everything that was not included in the previous classes. > > Thanks in advance, > Vlad > _______________________________________________ > juniper-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/juniper-nsp > -- Matthew Tighe [email protected] _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
