Example: Configuring Per-Unit Scheduling for Subscriber Access
In this example, a network administrator sets up a subscriber access configuration with per-unit scheduling.
The administrator configures the static VLAN interfaces and enables per-unit scheduling for the interfaces.
[edit] interfaces { ge-1/1/0 { per-unit-scheduler; vlan-tagging; unit 100 { vlan-id 100; family inet { unnumbered-address lo0.0 preferred-source-address 192.0.2.100; } } unit 200 { vlan-id 200; family inet { unnumbered-address lo0.0 preferred-source-address 192.0.2.100; } } } ge-1/1/1 { per-unit-scheduler; vlan-tagging; unit 100 { vlan-id 100; family inet { unnumbered-address lo0.0 preferred-source-address 192.0.2.100; } } unit 200 { vlan-id 200; family inet { unnumbered-address lo0.0 preferred-source-address 192.0.2.100; } } } ge-1/0/1 { unit 0 { family inet { address 203.0.113.31/24; } } } ge-1/1/2 { description "wfce14 eth1 soso ge-1/1/2"; vlan-tagging; gigether-options { no-auto-negotiation; } unit 100 { vlan-id 100; family inet { address 203.0.113.121/24; } } } }The administrator configures static CoS parameters, including forwarding classes and classifiers, to be referenced in the dynamic profiles.
[edit] class-of-service { classifiers { inet-precedence 8q-inet { forwarding-class be { loss-priority low code-points 000; } forwarding-class ef { loss-priority low code-points 001; } forwarding-class af { loss-priority low code-points 010; } forwarding-class nc { loss-priority low code-points 011; } forwarding-class voice { loss-priority low code-points 100; } forwarding-class video { loss-priority low code-points 101; } forwarding-class game { loss-priority low code-points 110; } forwarding-class data { loss-priority low code-points 111; } } inet-precedence 4q-inet { forwarding-class be { loss-priority low code-points [ 000 001 ]; } forwarding-class ef { loss-priority low code-points [ 010 011 ]; } forwarding-class af { loss-priority low code-points [ 100 101 ]; } forwarding-class nc { loss-priority low code-points [ 110 111 ]; } } inet-precedence 8q-drop-inet { forwarding-class be { loss-priority low code-points 000; } forwarding-class ef { loss-priority medium-low code-points 001; } forwarding-class af { loss-priority medium-high code-points 010; } forwarding-class nc { loss-priority high code-points 011; } forwarding-class voice { loss-priority low code-points 100; } forwarding-class video { loss-priority medium-low code-points 101; } forwarding-class game { loss-priority medium-high code-points 110; } forwarding-class data { loss-priority high code-points 111; } } inet-precedence 4q-drop-inet { forwarding-class be { loss-priority low code-points [ 000 001 ]; } forwarding-class ef { loss-priority medium-low code-points [ 010 011 ]; } forwarding-class af { loss-priority medium-high code-points [ 100 101 ]; } forwarding-class nc { loss-priority high code-points [ 110 111 ]; } } } drop-profiles { d0 { fill-level 25 drop-probability 100; fill-level 0 drop-probability 0; } d1 { fill-level 50 drop-probability 100; fill-level 0 drop-probability 0; } d2 { fill-level 75 drop-probability 100; fill-level 0 drop-probability 0; } d3 { fill-level 100 drop-probability 100; fill-level 0 drop-probability 0; } all { fill-level 0 drop-probability 0; fill-level 100 drop-probability 100; } } forwarding-classes { queue 0 be; queue 1 ef; queue 2 af; queue 3 nc; queue 4 voice; queue 5 video; queue 6 game; queue 7 data; } interfaces { ge-1/0/1 { unit 0 { classifiers { inet-precedence 8q-drop-low-high-inet; } } } } traceoptions { flag all; flag asynch; flag route-socket; } }The administrator configures the access and service dynamic profiles to receive CoS parameters for the subscriber interfaces through RADIUS.
[edit] dynamic-profiles { subscriber { interfaces { "$junos-interface-ifd-name" { unit "$junos-underlying-interface-unit" { family inet; } } } class-of-service { traffic-control-profiles { zero { scheduler-map "$junos-cos-scheduler-map"; shaping-rate "$junos-cos-shaping-rate"; guaranteed-rate "$junos-cos-guaranteed-rate"; delay-buffer-rate "$junos-cos-delay-buffer-rate"; } } interfaces { "$junos-interface-ifd-name" { unit "$junos-underlying-interface-unit" { output-traffic-control-profile zero; } } } scheduler-maps { be_smap { forwarding-class be scheduler be_sch; } all_smap { forwarding-class be scheduler be_sch; forwarding-class ef scheduler ef_sch; forwarding-class af scheduler af_sch; forwarding-class nc scheduler nc_sch; forwarding-class video scheduler video_sch; forwarding-class data scheduler data_sch; } be_ef_smap { forwarding-class be scheduler be_sch; forwarding-class ef scheduler ef_sch; } af_smap { forwarding-class af scheduler af_sch; } be_ef_af_nc_smap { forwarding-class be scheduler be_sch; forwarding-class ef scheduler ef_sch; forwarding-class af scheduler af_sch; forwarding-class nc scheduler nc_sch; } voice_video_game_data_smap { forwarding-class voice scheduler voice_sch; forwarding-class video scheduler video_sch; forwarding-class game scheduler game_sch; forwarding-class data scheduler data_sch; } } schedulers { "$junos-cos-scheduler" { transmit-rate percent "$junos-cos-scheduler-tx"; buffer-size percent "$junos-cos-scheduler-bs"; priority "$junos-cos-scheduler-pri"; drop-profile-map loss-priority low protocol any drop-profile "$junos-cos-scheduler-dropfile-low"; drop-profile-map loss-priority medium-low protocol any drop-profile "$junos-cos-scheduler-dropfile-medium-low"; drop-profile-map loss-priority medium-high protocol any drop-profile "$junos-cos-scheduler-dropfile-medium-high"; drop-profile-map loss-priority high protocol any drop-profile "$junos-cos-scheduler-dropfile-high"; } } } } service { variables { fc_1 default-value be; sch_1 default-value be_sch; sch-tx_1 default-value 20000000; sch-bs_1 default-value 10; sch-pri_1 default-value high; sch-drop-low_1 default-value d3; sch-drop-med-low_1 default-value d2; sch-drop-med-high_1 default-value d1; sch-drop-high_1 default-value d0; sch-drop-any_1 default-value d3; fc_2 default-value af; sch_2 default-value af_sch; sch-tx_2 default-value 10; sch-bs_2 default-value 10; sch-pri_2 default-value high; sch-drop-low_2 default-value d3; sch-drop-med-low_2 default-value d2; sch-drop-med-high_2 default-value d1; sch-drop-high_2 default-value d0; sch-drop-any_2 default-value d3; fc_3 default-value voice; sch_3 default-value voice_sch; sch-tx_3 default-value 20000000; sch-bs_3 default-value 10; sch-pri_3 default-value high; sch-drop-low_3 default-value d3; sch-drop-med-low_3 default-value d2; sch-drop-med-high_3 default-value d1; sch-drop-high_3 default-value d0; sch-drop-any_3 default-value d3; fc_4 default-value game; sch_4 default-value game_sch; sch-tx_4 default-value 10; sch-bs_4 default-value 10; sch-pri_4 default-value high; sch-drop-low_4 default-value d3; sch-drop-med-low_4 default-value d2; sch-drop-med-high_4 default-value d1; sch-drop-high_4 default-value d0; sch-drop-any_4 default-value d3; scheduler-map default-value all_smap; } class-of-service { scheduler-maps { "$scheduler-map" { forwarding-class "$fc_1" scheduler "$sch_1"; forwarding-class "$fc_2" scheduler "$sch_2"; forwarding-class "$fc_3" scheduler "$sch_3"; forwarding-class "$fc_4" scheduler "$sch_4"; } } schedulers { "$sch_1" { transmit-rate "$sch-tx_1"; buffer-size percent "$sch-bs_1"; priority "$sch-pri_1"; drop-profile-map loss-priority low protocol any drop-profile "$sch-drop-low_1"; drop-profile-map loss-priority medium-low protocol any drop-profile "$sch-drop-med-low_1"; drop-profile-map loss-priority medium-high protocol any drop-profile "$sch-drop-med-high_1"; drop-profile-map loss-priority high protocol any drop-profile "$sch-drop-high_1"; } "$sch_2" { transmit-rate percent "$sch-tx_2"; buffer-size percent "$sch-bs_2"; priority "$sch-pri_2"; drop-profile-map loss-priority low protocol any drop-profile "$sch-drop-low_2"; drop-profile-map loss-priority medium-low protocol any drop-profile "$sch-drop-med-low_2"; drop-profile-map loss-priority medium-high protocol any drop-profile "$sch-drop-med-high_2"; drop-profile-map loss-priority high protocol any drop-profile "$sch-drop-high_2"; } "$sch_3" { transmit-rate "$sch-tx_3"; buffer-size percent "$sch-bs_3"; priority "$sch-pri_3"; drop-profile-map loss-priority low protocol any drop-profile "$sch-drop-low_3"; drop-profile-map loss-priority medium-low protocol any drop-profile "$sch-drop-med-low_3"; drop-profile-map loss-priority medium-high protocol any drop-profile "$sch-drop-med-high_3"; drop-profile-map loss-priority high protocol any drop-profile "$sch-drop-high_3"; } "$sch_4" { transmit-rate percent "$sch-tx_4"; buffer-size percent "$sch-bs_4"; priority "$sch-pri_4"; drop-profile-map loss-priority low protocol any drop-profile "$sch-drop-low_4"; drop-profile-map loss-priority medium-low protocol any drop-profile "$sch-drop-med-low_4"; drop-profile-map loss-priority medium-high protocol any drop-profile "$sch-drop-med-high_4"; drop-profile-map loss-priority high protocol any drop-profile "$sch-drop-high_4"; } } } } service_2 { variables { fc_1 default-value be; sch_1 default-value be_sch; sch-tx_1 default-value 10; sch-bs_1 default-value 10; sch-pri_1 default-value high; sch-drop-low_1 default-value d3; sch-drop-med-low_1 default-value d2; sch-drop-med-high_1 default-value d1; sch-drop-high_1 default-value d0; sch-drop-any_1 default-value d3; scheduler-map default-value all_smap; } class-of-service { scheduler-maps { "$scheduler-map" { forwarding-class "$fc_1" scheduler "$sch_1"; } } schedulers { "$sch_1" { transmit-rate percent "$sch-tx_1"; buffer-size percent "$sch-bs_1"; priority "$sch-pri_1"; drop-profile-map loss-priority low protocol any drop-profile "$sch-drop-low_1"; drop-profile-map loss-priority medium-low protocol any drop-profile "$sch-drop-med-low_1"; drop-profile-map loss-priority medium-high protocol any drop-profile "$sch-drop-med-high_1"; drop-profile-map loss-priority high protocol any drop-profile "$sch-drop-high_1"; } } } } }The network administrator configures DHCP and RADIUS to grant access and services to the interfaces referenced by the
subscriberdynamic profile.[edit] forwarding-options { dhcp-relay { traceoptions { file size 1g; flag all; } dynamic-profile subscriber aggregate-clients replace; server-group { subscriber-server { 203.0.113.2; } } active-server-group subscriber-server; group relay-0 { authentication { password $ABC123; username-include { user-prefix user0; mac-address; } } interface ge-1/1/0.100; interface ge-1/1/0.200; } } } radius-server { 198.51.100.11 secret "$ABC123$ABC123$ABC123"; ## SECRET-DATA } profile subscriber-profile { authentication-order radius; radius { authentication-server 198.51.100.11; accounting-server 198.51.100.11; } radius-server { 198.51.100.11 secret "$ABC123$ABC123"; ## SECRET-DATA } accounting { order radius; statistics time; } }