10. cvičení

CoS - Class of Service

Definice front

# set class-of-service forwarding-classes queue 0 best-effort
      

# set class-of-service forwarding-classes queue 1 admin
      

# set class-of-service forwarding-classes queue 2 rtsp
      

# set class-of-service forwarding-classes queue 3 network-control
      

Schedulers

# set class-of-service schedulers best-effort-scheduler transmit-rate percent 15
      

# class-of-service schedulers best-effort-scheduler buffer-size percent 15
      

# set class-of-service schedulers best-effort-scheduler priority low
      

root# show class-of-service schedulers

        best-effort-scheduler {
        transmit-rate percent 40;
        buffer-s ize percent 40;
        priority low;
        }

        admin-scheduler {
        transmit-rate percent 40;
        buffer-size percent 40;
        priority medium-low;
        }

        rtsp-scheduler {
        trans mit-rate percent 15;
        buffer-size percent 15;
        priority high;
        }

        network-control-scheduler {
        transmit-rate percent 5;
        buffer-size percent 5;
        priority medium-high;
        }
      

Scheduler maps

# set class-of-service scheduler-maps my-sched-map forwarding-class best-effort
        scheduler best-effort-scheduler
      

root# show class-of-service scheduler-maps

        my-sched-map {
        forwarding-class best-effort scheduler best-effort-scheduler;
        forwarding-class rtsp scheduler rtsp-scheduler;
        forwarding-class admin scheduler admin-scheduler;
        forwarding-class network-control scheduler network-control-scheduler;
        }
      

Mapování Scheduler-maps na interface

# set class-of-service interfaces ge-0/0/0 scheduler-map my-sched-map
      

root# show class-of-service interfaces

        ge-0/0/0 {
        scheduler-map my-sched-map;
        }

        ge-0/0/1 {
        scheduler-map my-sched-map;
        }
      

Traffic marking (Firewall filters)

# set firewall family inet filter apply-cos-markings term admin from
        source-address x.x.x.x/x
      

# set firewall family inet filter apply-cos-markings term admin then
        forwarding-class admin
      

# set firewall family inet filter apply-cos-markings term admin then accept
      

root# show firewall

        family inet {
        filter apply-cos-markings {
        term admin {
        from {
        source-address x.x.x.x/x
        }

        then {
        forwarding-class admin;
        accept;
        }
        }

        term rtsp {
        from {
        protocol [ tcp udp ];
        port 8554;
        }

        then {
        forwarding-class rtsp;
        accept;
        }
        }

        term default {
        then accept;
        }
        }
        }
      

Aplikování firewall filtru na interface

# set interfaces ge-0/0/0.0 family inet filter input apply-cos-markings
      

root# show interfaces

        ge-0/0/0 {
        unit 0 {
        family inet {
        filter {
        input apply-cos-markings;
        }

        address x.x.x.x/x;
        }
        }
        }
      

Troubleshoot & Verification

> show interfaces queue ge-0/0/0