示例:在 EX CoS上配置交换机
在服务等级上配置 CoS (CoS) 以管理流量,以便当网络遇到拥塞和延迟时,关键应用程序受到保护。通过使用CoS,您可以将交换机上的流量划分为多个类,并提供不同级别的吞吐量和数据包丢失。对于对抖动和延迟敏感的流量(例如语音信息流)来说,这尤其重要。
此示例演示如何在CoS一台 EX 系列交换机上配置交换机连接。
要求
此示例使用以下硬件和软件组件:
EX3200 和 EX4200 交换机
Junos OS的 9.0 或更高版本
概述和拓扑
此示例使用图 1 中所示 的拓扑。
![Topology for Configuring CoS](/documentation/us/en/software/junos/cos-ex/images/g020033.gif)
此配置示例的拓扑由接入层的 EX3200 EX4200交换机组成。
EX 系列接入交换机配置为支持 VLAN 成员关系。在 EX3200 接入层交换机上,两个 VoIP IP 电话的接口和 分配给语音 ge-0/0/0
ge-0/0/1
VLAN ( voice-vlan
)。交换机 ge-0/0/2
接口分配给用于监控摄像机的摄像头 VLAN ( camera-vlan
)。交换机接口 、 和 将分配给托管各种应用程序的服务器 VLAN ( ),如 ge-0/0/3
ge-0/0/4
ge-0/0/5
ge-0/0/6
server-vlan
Citrix、Microsoft、Oracle 和 SAP 提供的应用程序。EX3200 中继端口 ge-0/0/20 和 ge-0/0/21 将分配给服务器、语音、员工和摄像机 V VPN,用作上行链路端口来连接分布层交换机。
EX4200交换机包含在接入层中,以类似方式连接员工和语音 V VPN,但此示例不会显示这些交换机的配置详细信息。
表 1 显示了 VLAN 配置组件。
VLAN 名称 |
VLAN ID |
VLAN 子网和可用 IP 地址 |
VLAN 说明 |
---|---|---|---|
|
|
|
用于员工 VoIP 通信的语音 VLAN。 |
|
|
|
用于监控摄像机的 VLAN。 |
|
|
|
适用于托管企业应用程序的服务器的 VLAN。 |
EX PoE 交换机上支持双端口端口以太网供电 (PoE) 可为连接到端口的 VoIP 电话提供网络连接和电源。 表 2 显示了分配给 VLAN 的交换机接口,以及连接到 48 端口交换机端口的设备的 IP 地址,所有端口都PoE功能。
接口 |
VLAN 成员 |
IP 地址 |
端口设备 |
---|---|---|---|
|
|
|
两个 VoIP 电话。 |
|
|
|
监控摄像机。 |
|
|
|
四台服务器托管应用程序,如 Citrix、Microsoft、Oracle 和 SAP 提供的应用程序。 |
此示例演示如何在CoS EX 系列交换机上配置交换机。此示例不会考虑 CoS 的跨网络应用程序,其中您可以在入口和出口交换机上实施不同配置,以对网络中一组节点的不同类提供差异化处理。
尽管有时会看到已配置传输速率为严格高优先级配置时间表,但是此配置具有误导性,因为严格高优先级时间表获得无限带宽,而传输速率参数对它们没有影响。借助此配置,如果拥塞,优先级较低的队列可能严重不足。最好配置优先级严格的时间表整形速率参数,这是限制其带宽的正确方法。
配置
程序
CLI快速配置
要快速配置CoS,请复制以下命令并将其粘贴到交换机终端窗口中:
[edit] set class-of-service forwarding-classes class app queue-num 5 set class-of-service forwarding-classes class mail queue-num 1 set class-of-service forwarding-classes class db queue-num 2 set class-of-service forwarding-classes class erp queue-num 3 set class-of-service forwarding-classes class video queue-num 4 set class-of-service forwarding-classes class best-effort queue-num 0 set class-of-service forwarding-classes class voice queue-num 6 set class-of-service forwarding-classes class network-control queue-num 7 set firewall family ethernet-switching filter voip_class term voip from source-address 192.168.1.1/28 set firewall family ethernet-switching filter voip_class term voip from source-address 192.168.1.2/28 set firewall family ethernet-switching filter voip_class term voip from protocol udp set firewall family ethernet-switching filter voip_class term voip from source-port 2698 set firewall family ethernet-switching filter voip_class term voip then forwarding-class voice loss-priority low set firewall family ethernet-switching filter voip_class term network_control from precedence [net-control internet-control] set firewall family ethernet-switching filter voip_class term network_control then forwarding-class network-control loss-priority low set firewall family ethernet-switching filter voip_class term best_effort_traffic then forwarding-class best-effort loss-priority low set interfaces ge-0/0/0 description phone1–voip-ingress-port set interfaces ge-0/0/0 unit 0 family ethernet-switching filter input voip_class set class-of-service interfaces ge-0/0/0 shaping-rate 100m set interfaces ge-0/0/1 description phone2–voip-ingress-port set interfaces ge-0/0/1 unit 0 family ethernet-switching filter input voip_class set firewall family ethernet-switching filter video_class term video from source-address 192.168.1.17/28 set firewall family ethernet-switching filter video_class term video from protocol udp set firewall family ethernet-switching filter video_class term video from source-port 2979 set firewall family ethernet-switching filter video_class term video then forwarding-class video loss-priority low set firewall family ethernet-switching filter video_class term network_control from precedence [net-control internet-control] set firewall family ethernet-switching filter video_class term network_control then forwarding-class network-control loss-priority low set firewall family ethernet-switching filter video_class term best_effort_traffic then forwarding-class best-effort loss-priority low set interfaces ge-0/0/2 description video-ingress-port set interfaces ge-0/0/2 unit 0 family ethernet-switching filter input video_class set firewall family ethernet-switching filter app_class term app from source-address 192.168.1.33/28 set firewall family ethernet-switching filter app_class term app from protocol tcp set firewall family ethernet-switching filter app_class term app from source-port [1494 2512 2513 2598 2897] set firewall family ethernet-switching filter app_class term app then forwarding-class app loss-priority low set firewall family ethernet-switching filter app_class term mail from source-address 192.168.1.34/28 set firewall family ethernet-switching filter app_class term mail from protocol tcp set firewall family ethernet-switching filter app_class term mail from source-port [25 143 389 691 993 3268 3269] set firewall family ethernet-switching filter app_class term mail then forwarding-class mail loss-priority low set firewall family ethernet-switching filter app_class term db from source-address 192.168.1.35/28 set firewall family ethernet-switching filter app_class term db from protocol tcp set firewall family ethernet-switching filter app_class term db from source-port [1521 1525 1527 1571 1810 2481] set firewall family ethernet-switching filter app_class term db then forwarding-class db loss-priority low set firewall family ethernet-switching filter app_class term erp from source-address 192.168.1.36/28 set firewall family ethernet-switching filter app_class term erp from protocol tcp set firewall family ethernet-switching filter app_class term erp from source-port [3200 3300 3301 3600] set firewall family ethernet-switching filter app_class term erp then forwarding-class erp loss-priority low set firewall family ethernet-switching filter app_class term network_control from precedence [net-control internet-control] set firewall family ethernet-switching filter app_class term network_control then forwarding-class network-control loss-priority low set firewall family ethernet-switching filter app_class term best_effort_traffic then forwarding-class best-effort loss-priority low set interfaces ge-0/0/3 unit 0 family ethernet-switching filter input app_class set interfaces ge-0/0/4 unit 0 family ethernet-switching filter input app_class set interfaces ge-0/0/5 unit 0 family ethernet-switching filter input app_class set interfaces ge-0/0/6 unit 0 family ethernet-switching filter input app_class set class-of-service schedulers voice-sched shaping-rate percent 10 set class-of-service schedulers voice-sched buffer-size percent 10 set class-of-service schedulers voice-sched priority strict-high set class-of-service schedulers video-sched priority low set class-of-service schedulers video-sched transmit-rate percent 15 set class-of-service schedulers app-sched buffer-size percent 10 set class-of-service schedulers app-sched priority low set class-of-service schedulers app-sched transmit-rate percent 10 set class-of-service schedulers mail-sched buffer-size percent 5 set class-of-service schedulers mail-sched priority low set class-of-service schedulers mail-sched transmit-rate percent 5 set class-of-service schedulers db-sched buffer-size percent 10 set class-of-service schedulers db-sched priority low set class-of-service schedulers db-sched transmit-rate percent 10 set class-of-service schedulers erp-sched buffer-size percent 10 set class-of-service schedulers erp-sched priority low set class-of-service schedulers erp-sched transmit-rate percent 10 set class-of-service schedulers nc-sched shaping-rate percent 5 set class-of-service schedulers nc-sched buffer-size percent 5 set class-of-service schedulers nc-sched priority strict-high set class-of-service schedulers be-sched buffer-size percent 35 set class-of-service schedulers be-sched priority low set class-of-service schedulers be-sched transmit-rate percent 35 set class-of-service scheduler-maps ethernet-cos-map forwarding-class voice scheduler voice-sched set class-of-service scheduler-maps ethernet-cos-map forwarding-class video scheduler video-sched set class-of-service scheduler-maps ethernet-cos-map forwarding-class app scheduler app-sched set class-of-service scheduler-maps ethernet-cos-map forwarding-class mail scheduler mail-sched set class-of-service scheduler-maps ethernet-cos-map forwarding-class db scheduler db-sched set class-of-service scheduler-maps ethernet-cos-map forwarding-class erp scheduler erp-sched set class-of-service scheduler-maps ethernet-cos-map forwarding-class network-control scheduler nc-sched set class-of-service scheduler-maps ethernet-cos-map forwarding-class best-effort scheduler be-sched set class-of-service interfaces ge-0/0/20 scheduler-map ethernet-cos-map set class-of-service interfaces ge-0/0/21 scheduler-map ethernet-cos-map set class-of-service schedulers voice-sched-queue-shap shaping-rate 30m set class-of-service scheduler-maps sched-map-be forwarding-class best-effort scheduler voice-sched-queue-shap set class-of-service interfaces ge-0/0/2 scheduler-map sched-map-be
逐步过程
要配置和应用 CoS:
在八个转发类和八个队列之间配置一对一映射:
[edit class-of-service] user@switch# set forwarding-classes class app queue-num 5 user@switch# set forwarding-classes class mail queue-num 1 user@switch# set forwarding-classes class db queue-num 2 user@switch# set forwarding-classes class erp queue-num 3 user@switch# set forwarding-classes class video queue-num 4 user@switch# set forwarding-classes class best-effort queue-num 0 user@switch# set forwarding-classes class voice queue-num 6 user@switch# set forwarding-classes class network-control queue-num 7
定义防火墙过滤器
voip_class
以对 VoIP 流量进行分类:[edit firewall] user@switch# set family ethernet-switching filter voip_class
定义术语
voip
:[edit firewall] user@switch# set family ethernet-switching filter voip_class term voip from source-address 192.168.1.1/28 user@switch# set family ethernet-switching filter voip_class term voip from source-address 192.168.1.2/28 user@switch# set family ethernet-switching filter voip_class term voip protocol udp user@switch# set family ethernet-switching filter voip_class term voip source-port 2698 user@switch# set family ethernet-switching filter voip_class term voip then forwarding-class voice loss-priority low
定义术语
network_control
(用于voip_class
过滤器):[edit firewall] user@switch# set family ethernet-switching filter voip_class term network_control from precedence [net-control internet-control] user@switch# set family ethernet-switching filter voip_class term network_control then forwarding-class network-control loss-priority low
定义无
best_effort_traffic
匹配条件的术语(对于voip_class
过滤器):[edit firewall] user@switch# set family ethernet-switching filter voip_class term best_effort_traffic then forwarding-class best-effort loss-priority low
将防火墙过滤器
voip_class
用作 VoIP 电话接口的输入过滤器:[edit interfaces] user@switch# set ge-0/0/0 description phone1-voip-ingress-port user@switch# set ge-0/0/0 unit 0 family ethernet-switching filter input voip_class user@switch# set ge-0/0/1 description phone2-voip-ingress-port user@switch# set ge-0/0/1 unit 0 family ethernet-switching filter input voip_class
在接口 ge-0/0/0 上应用端口整形:
[edit] user@switch# set class-of-service interfaces ge-0/0/0 shaping-rate 100m
定义防火墙过滤器
video_class
,对视频流量进行分类:[edit firewall] user@switch# set family ethernet-switching filter video_class
定义术语
video
:[edit firewall] user@switch# set family ethernet-switching filter video_class term video from source-address 192.168.1.17/28 user@switch# set family ethernet-switching filter video_class term video protocol udp user@switch# set family ethernet-switching filter video_class term video source-port 2979 user@switch# set family ethernet-switching filter video_class term video then forwarding-class video loss-priority low
定义术语
network_control
(用于video_class
过滤器):[edit firewall] user@switch# set family ethernet-switching filter video_class term network_control from precedence [net-control internet-control] user@switch# set family ethernet-switching filter video_class term network_control then forwarding-class network-control loss-priority low
定义无
best_effort_traffic
匹配条件的术语(对于video_class
过滤器):[edit firewall] user@switch# set family ethernet-switching filter video_class term best_effort_traffic then forwarding-class best-effort loss-priority low
将防火墙过滤器
video_class
用作输入过滤器,以连接到监控摄像机的接口:[edit interfaces] user@switch# set ge-0/0/2 description video-ingress-port user@switch# set ge-0/0/2 unit 0 family ethernet-switching filter input video_class
定义防火墙过滤器
app_class
,用于对应用程序服务器流量进行分类:[edit firewall] user@switch# set family ethernet-switching filter app_class
定义术语
app
(用于app_class
过滤器):[edit firewall] user@switch# set family ethernet-switching filter app_class term app from source-address 192.168.1.33/28 user@switch# set family ethernet-switching filter app_class term app protocol tcp user@switch# set family ethernet-switching filter app_class term app source-port [1494 2512 2513 2598 2897] user@switch# set family ethernet-switching filter app_class term app then forwarding-class app loss-priority low
定义术语
mail
(用于app_class
过滤器):[edit firewall] user@switch# set family ethernet-switching filter app_class term mail from source-address 192.168.1.34/28 user@switch# set family ethernet-switching filter app_class term mail protocol tcp user@switch# set family ethernet-switching filter app_class term mail source-port [25 143 389 691 993 3268 3269] user@switch# set family ethernet-switching filter app_class term mail then forwarding-class mail loss-priority low
定义术语
db
(用于app_class
过滤器):[edit firewall] user@switch# set family ethernet-switching filter app_class term db from source-address 192.168.1.35/28 user@switch# set family ethernet-switching filter app_class term db protocol tcp user@switch# set family ethernet-switching filter app_class term db source-port [1521 1525 1527 1571 1810 2481] user@switch# set family ethernet-switching filter app_class term db then forwarding-class db loss-priority low
定义术语
erp
(用于app_class
过滤器):[edit firewall] user@switch# set family ethernet-switching filter app_class term erp from source-address 192.168.1.36/28 user@switch# set family ethernet-switching filter app_class term erp protocol tcp user@switch# set family ethernet-switching filter app_class term erp source-port [3200 3300 3301 3600] user@switch# set family ethernet-switching filter app_class term erp then forwarding-class erp loss-priority low
定义术语
network_control
(用于app_class
过滤器):[edit firewall] user@switch# set family ethernet-switching filter app_class term network_control from precedence [net-control internet-control] user@switch# set family ethernet-switching filter app_class term network_control then forwarding-class network-control loss-priority low
定义术语
best_effort_traffic
(用于app_class
过滤器):[edit firewall] user@switch# set family ethernet-switching filter app_class term best_effort_traffic then forwarding-class best-effort loss-priority low
将防火墙过滤器
app_class
用作输入过滤器,以访问托管应用程序的服务器接口:[edit interfaces] user@switch# set ge-0/0/3 unit 0 family ethernet-switching filter input app_class user@switch# set ge-0/0/4 unit 0 family ethernet-switching filter input app_class user@switch# set ge-0/0/5 unit 0 family ethernet-switching filter input app_class user@switch# set ge-0/0/6 unit 0 family ethernet-switching filter input app_class
配置时间表:
[edit class-of-service] user@switch# set schedulers voice-sched shaping-rate percent 10 user@switch# set schedulers voice-sched buffer-size percent 10 user@switch# set schedulers voice-sched priority strict-high user@switch# set schedulers video-sched priority low user@switch# set schedulers video-sched transmit-rate percent 15 user@switch# set schedulers app-sched buffer-size percent 10 user@switch# set schedulers app-sched priority low user@switch# set schedulers app-sched transmit-rate percent 10 user@switch# set schedulers mail-sched buffer-size percent 5 user@switch# set schedulers mail-sched priority low user@switch# set schedulers mail-sched transmit-rate percent 5 user@switch# set schedulers db-sched buffer-size percent 10 user@switch# set schedulers db-sched priority low user@switch# set schedulers db-sched transmit-rate percent 10 user@switch# set schedulers erp-sched buffer-size percent 10 user@switch# set schedulers erp-sched priority low user@switch# set schedulers erp-sched transmit-rate percent 10 user@switch# set schedulers nc-sched shaping-rate percent 5 user@switch# set schedulers nc-sched buffer-size percent 5 user@switch# set schedulers nc-sched priority strict-high user@switch# set schedulers nc-sched transmit-rate percent 5 user@switch# set schedulers be-sched buffer-size percent 35 user@switch# set schedulers be-sched priority low user@switch# set schedulers be-sched transmit-rate percent 35
使用调度器图将转发类分配给时间表
ethernet-cos-map
:[edit class-of-service] user@switch# set scheduler-maps ethernet-cos-map forwarding-class voice scheduler voice-sched user@switch# set scheduler-maps ethernet-cos-map forwarding-class video scheduler video-sched user@switch# set scheduler-maps ethernet-cos-map forwarding-class app scheduler app-sched user@switch# set scheduler-maps ethernet-cos-map forwarding-class mail scheduler mail-sched user@switch# set scheduler-maps ethernet-cos-map forwarding-class db scheduler db-sched user@switch# set scheduler-maps ethernet-cos-map forwarding-class erp scheduler erp-sched user@switch# set scheduler-maps ethernet-cos-map forwarding-class network-control scheduler nc-sched user@switch# set scheduler-maps ethernet-cos-map forwarding-class best-effort scheduler be-sched
将调度器图与传出接口关联:
[edit class-of-service interfaces] user@switch# set ge-0/0/20 scheduler-map ethernet-cos-map user@switch# set ge-0/0/21 scheduler-map ethernet-cos-map
为尽力服务队列应用队列整形:
[edit] user@switch# set class-of-service schedulers voice-sched-queue-shap shaping-rate 30m user@switch# set class-of-service scheduler-maps sched-map-be forwarding-class best-effort scheduler voice-sched-queue-shap user@switch# set class-of-service interfaces ge-0/0/2 scheduler-map sched-map-be
结果
显示配置结果:
user@switch> show firewall
firewall family ethernet-switching { filter voip_class { term voip { from { source-address { 192.168.1.1/28; 192.168.1.2/28; } protocol udp; source-port 2698; } then { forwarding-class voice; loss-priority low; } } term network control { from { precedence [net-control internet-control]; } then { forwarding-class network-control; loss-priority low; } } term best_effort_traffic { then { forwarding-class best-effort; loss-priority low; } } } filter video_class { term video { from { source-address { 192.168.1.17/28; } protocol udp; source-port 2979; } then { forwarding-class video; loss-priority low; } } term network control { from { precedence [net-control internet-control]; } then { forwarding-class network-control; loss-priority low; } } term best_effort_traffic { then { forwarding-class best-effort; loss-priority low; } } } filter app_class { term app { from { source-address { 192.168.1.33/28; } protocol tcp; source-port [1491 2512 2513 2598 2897]; } then { forwarding-class app; loss-priority low; } } term mail { from { source-address { 192.168.1.34/28; } protocol tcp; source-port [25 143 389 691 993 3268 3269]; } then { forwarding-class mail; loss-priority low; } } term db { from { source-address { 192.168.1.35/28; } protocol tcp; source-port [1521 1525 1527 1571 1810 2481]; } then { forwarding-class db; loss-priority low; } } term erp { from { source-address { 192.168.1.36/28; } protocol tcp; source-port [3200 3300 3301 3600]; } then { forwarding-class erp; loss-priority low; } } term network control { from { precedence [net-control internet-control]; } then { forwarding-class network-control; loss-priority low; } } term best_effort_traffic { then { forwarding-class best-effort; loss-priority low; } } } }
user@switch# show class-of-service
forwarding-classes { class app queue-num 5; class mail queue-num 1; class db queue-num 2; class erp queue-num 3; class video queue-num 4; class best-effort queue-num 0; class voice queue-num 6; class network-control queue-num 7; } interfaces { ge-0/0/0 { shaping-rate 100m; } ge-0/0/2 { scheduler-map sched-map-be; } ge-0/0/20 { scheduler-map ethernet-cos-map; } ge-0/0/21 { scheduler-map ethernet-cos-map; } } schedulers { voice-sched-queue-shap { shaping-rate 30m; } voice-sched { shaping-rate percent 10; buffer-size percent 10; priority strict-high; } video-sched { buffer-size percent 15; priority low; transmit-rate percent 15; } app-sched { buffer-size percent 10; priority low; transmit-rate percent 10; } mail-sched { buffer-size percent 5; priority low; transmit-rate percent 5; } db-sched { buffer-size percent 10; priority low; transmit-rate percent 10; } erp-sched { buffer-size percent 10; priority low; transmit-rate percent 10; } nc-sched { shaping-rate percent 5; buffer-size percent 5; priority strict-high; } be-sched { buffer-size percent 35; priority low; transmit-rate percent 35; } } scheduler-maps { ethernet-cos-map { forwarding-class voice scheduler voice-sched; forwarding-class video scheduler video-sched; forwarding-class app scheduler app-sched; forwarding-class mail scheduler mail-sched; forwarding-class db scheduler db-sched; forwarding-class erp scheduler erp-sched; forwarding-class network-control scheduler nc-sched; forwarding-class best-effort scheduler be-sched; } sched-map-be { forwarding-class best-effort scheduler voice-sched-queue-shap; } }
user@switch# show interfaces
ge-0/0/0 { unit 0 { family ethernet { filter { input voip_class; } } } } ge-0/0/1 { unit 0 { family ethernet { filter { input voip_class; } } } } ge-0/0/2 { unit 0 { family ethernet { filter { input video_class; } } } } ge-0/0/3 { unit 0 { family ethernet { filter { input app_class; } } } } ge-0/0/4 { unit 0 { family ethernet { filter { input app_class; } } } } ge-0/0/5 { unit 0 { family ethernet { filter { input app_class; } } } } ge-0/0/6 { unit 0 { family ethernet { filter { input app_class; } } } }
验证
要确认配置工作正常,请执行以下任务:
验证定义的转发类是否存在并映射到队列
目的
验证转发类 、 、 、 和 已 app
best-effort
定义并 db
erp
mail
network-control
video
voice
映射到队列。
行动
user@switch> show class-of-service forwarding-class Forwarding class ID Queue app 0 5 db 1 2 erp 2 3 best-effort 3 0 mail 4 1 voice 5 6 video 6 4 network-control 7 7
意义
此输出显示转发类已定义并映射到相应的队列。
验证是否已将转发类分配给时间表
目的
验证转发类是否已被分配至时间表。
行动
user@switch> show class-of-service scheduler-map Scheduler map: ethernet-cos-map, Index: 2 Scheduler: voice-sched, Forwarding class: voice, Index: 22 Shaping rate: 10 percent, Rate Limit: none, Buffer size: 10 percent, Priority: Strict-high Drop profiles: Loss priority Protocol Index Name High non-TCP 1 <default-drop-profile> High TCP 1 <default-drop-profile> Scheduler: video-sched, Forwarding class: video, Index: 22 Transmit rate: 10 percent, Rate Limit: none, Buffer size: 10 percent, Priority: low Drop profiles: Loss priority Protocol Index Name High non-TCP 1 <default-drop-profile> High TCP 1 <default-drop-profile> Scheduler: app-sched, Forwarding class: app, Index: 22 Transmit rate: 10 percent, Rate Limit: none, Buffer size: 10 percent, Priority: low Drop profiles: Loss priority Protocol Index Name High non-TCP 1 <default-drop-profile> High TCP 1 <default-drop-profile> Scheduler: mail-sched, Forwarding class: mail, Index: 22 Transmit rate: 5 percent, Rate Limit: none, Buffer size: 5 percent, Priority: low Drop profiles: Loss priority Protocol Index Name High non-TCP 1 <default-drop-profile> High TCP 1 <default-drop-profile> Scheduler: db-sched, Forwarding class: db, Index: 22 Transmit rate: 10 percent, Rate Limit: none, Buffer size: 10 percent, Priority: low Drop profiles: Loss priority Protocol Index Name High non-TCP 1 <default-drop-profile> High TCP 1 <default-drop-profile> Scheduler: erp-sched, Forwarding class: erp, Index: 22 Transmit rate: 10 percent, Rate Limit: none, Buffer size: 10 percent, Priority: low Drop profiles: Loss priority Protocol Index Name High non-TCP 1 <default-drop-profile> High TCP 1 <default-drop-profile> Scheduler: be-sched, Forwarding class: best-effort, Index: 20 Transmit rate: 35 percent, Rate Limit: none, Buffer size: 35 percent, Priority: low Drop profiles: Loss priority Protocol Index Name High non-TCP 1 <default-drop-profile> High TCP 1 <default-drop-profile> Scheduler: nc-sched, Forwarding class: network-control, Index: 22 Shaping rate: 5 percent, Rate Limit: none, Buffer size: 5 percent, Priority: Strict-high Drop profiles: Loss priority Protocol Index Name High non-TCP 1 <default-drop-profile> High TCP 1 <default-drop-profile>
意义
此输出显示转发类已分配给时间表。
验证调度器图是否已应用于接口
目的
验证时间表图已应用于接口。
行动
user@switch> show class-of-service interface ... Physical interface: ge-0/0/20, Index: 149 Queues supported: 8, Queues in use: 8 Scheduler map: ethernet-cos-map, Index: 43366 Input scheduler map: <default>, Index: 3 ... Physical interface: ge-0/0/21, Index: 150 Queues supported: 8, Queues in use: 8 Scheduler map: ethernet-cos-map, Index: 15103 Input scheduler map: <default>, Index: 5 ...
意义
此输出包括时间表图 ( ) 已应用到 ( ethernet-cos-map
和 ) 的接口 ge-0/0/20
的详细信息 ge-0/0/21
。
验证是否已应用端口整形
目的
验证端口整形已应用于接口。
行动
当接口上存在 400 Mpbs 出口流量时,将端口整形应用于接口之前的输出 ge-0/0/0
如下:
user@switch> show interfaces ge-0/0/0 extensive Physical interface: ge-0/0/0, Enabled, Physical link is Up Interface index: 239, SNMP ifIndex: 548, Generation: 242 Link-level type: Ethernet, MTU: 1514, Speed: Auto, Duplex: Auto, BPDU Error: None, MAC-REWRITE Error: None, Loopback: Disabled, Source filtering: Disabled, Flow control: Enabled, Auto-negotiation: Enabled, Remote fault: Online, Media type: Copper Device flags : Present Running Interface flags: SNMP-Traps Internal: 0x0 Link flags : None CoS queues : 8 supported, 8 maximum usable queues Hold-times : Up 0 ms, Down 0 ms Current address: 00:23:9c:0b:ae:8d, Hardware address: 00:23:9c:0b:ae:8d Last flapped : 2012-07-07 03:21:52 UTC (1d 18:02 ago) Statistics last cleared: 2012-07-07 23:54:34 UTC (21:29:59 ago) Traffic statistics: Input bytes : 0 0 bps Output bytes : 2299853696 345934816 bps Input packets: 0 0 pps Output packets: 17967609 337827 pps IPv6 transit statistics: Input bytes : 0 Output bytes : 0 Input packets: 0 Output packets: 0 Input errors: Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Policed discards: 0, L3 incompletes: 0, L2 channel errors: 0, L2 mismatch timeouts: 0, FIFO errors: 0, Resource errors: 0 Output errors: Carrier transitions: 0, Errors: 0, Drops: 0, Collisions: 0, Aged packets: 0, FIFO errors: 0, HS link CRC errors: 0, MTU errors: 0, Resource errors: 0 Egress queues: 8 supported, 4 in use Queue counters: Queued packets Transmitted packets Dropped packets 0 best-effort 0 18302337 0 1 assured-forw 0 0 0 5 expedited-fo 0 0 0 7 network-cont 0 0 0 Queue number: Mapped forwarding classes 0 best-effort 1 assured-forwarding 5 expedited-forwarding 7 network-control Active alarms : None Active defects : None MAC statistics: Receive Transmit Total octets 0 2299853696 Total packets 0 17967609 Unicast packets 0 17967609 Broadcast packets 0 0 Multicast packets 0 0 CRC/Align errors 0 0 FIFO errors 0 0 MAC control frames 0 0 MAC pause frames 0 0 Oversized frames 0 Jabber frames 0 Fragment frames 0 Code violations 0 Autonegotiation information: Negotiation status: Complete Link partner: Link mode: Full-duplex, Flow control: Symmetric, Remote fault: OK, Link partner Speed: 1000 Mbps Local resolution: Flow control: Symmetric, Remote fault: Link OK Packet Forwarding Engine configuration: Destination slot: 1 CoS information: Direction : Output CoS transmit queue Bandwidth Buffer Priority Limit % bps % usec 0 best-effort 95 950000000 95 NA low none 7 network-control 5 50000000 5 NA low none Interface transmit statistics: Disabled Logical interface ge-1/0/10.0 (Index 69) (SNMP ifIndex 638) (Generation 138) Flags: SNMP-Traps 0x0 Encapsulation: ENET2 Traffic statistics: Input bytes : 0 Output bytes : 0 Input packets: 0 Output packets: 0 Local statistics: Input bytes : 0 Output bytes : 0 Input packets: 0 Output packets: 0 Transit statistics: Input bytes : 0 0 bps Output bytes : 0 0 bps Input packets: 0 0 pps Output packets: 0 0 pps Protocol eth-switch, Generation: 163, Route table: 0 Flags: Trunk-Mode
流量统计信息: 此输出中的字段显示出口流量为 ~400 Mpbs (345,934,816 bps)。将 100 Mbps 的端口整形应用于 ge-0/0/0 接口时,会看到 和 命令的以下 show interfaces ge-0/0/0 statistics show class-of-service interface ge-0/0/0 输出:
user@switch> show interfaces ge-0/0/0 statistics Physical interface: ge-0/0/0, Enabled, Physical link is Up Interface index: 239, SNMP ifIndex: 548, Generation: 242 Link-level type: Ethernet, MTU: 1514, Speed: Auto, Duplex: Auto, BPDU Error: None, MAC-REWRITE Error: None, Loopback: Disabled, Source filtering: Disabled, Flow control: Enabled, Auto-negotiation: Enabled, Remote fault: Online, Media type: Copper Device flags : Present Running Interface flags: SNMP-Traps Internal: 0x0 Link flags : None CoS queues : 8 supported, 8 maximum usable queues Hold-times : Up 0 ms, Down 0 ms Current address: 00:23:9c:0b:ae:8d, Hardware address: 00:23:9c:0b:ae:8d Last flapped : 2012-07-07 03:21:52 UTC (1d 18:10 ago) Statistics last cleared: 2012-07-07 23:54:34 UTC (21:37:58 ago) Traffic statistics: Input bytes : 0 0 bps Output bytes : 15779512832 100223104 bps Input packets: 0 0 pps Output packets: 123277444 97874 pps IPv6 transit statistics: Input bytes : 0 Output bytes : 0 Input packets: 0 Output packets: 0 Input errors: Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Policed discards: 0, L3 incompletes: 0, L2 channel errors: 0, L2 mismatch timeouts: 0, FIFO errors: 0, Resource errors: 0 Output errors: Carrier transitions: 0, Errors: 0, Drops: 0, Collisions: 0, Aged packets: 0, FIFO errors: 0, HS link CRC errors: 0, MTU errors: 0, Resource errors: 0 Egress queues: 8 supported, 4 in use Queue counters: Queued packets Transmitted packets Dropped packets 0 best-effort 0 123350092 57012484 1 assured-forw 0 0 0 5 expedited-fo 0 0 0 7 network-cont 0 0 0 Queue number: Mapped forwarding classes 0 best-effort 1 assured-forwarding 5 expedited-forwarding 7 network-control Active alarms : None Active defects : None MAC statistics: Receive Transmit Total octets 0 15779512832 Total packets 0 123277444 Unicast packets 0 123277444 Broadcast packets 0 0 Multicast packets 0 0 CRC/Align errors 0 0 FIFO errors 0 0 MAC control frames 0 0 MAC pause frames 0 0 Oversized frames 0 Jabber frames 0 Fragment frames 0 Code violations 0 Autonegotiation information: Negotiation status: Complete Link partner: Link mode: Full-duplex, Flow control: Symmetric, Remote fault: OK, Link partner Speed: 1000 Mbps Local resolution: Flow control: Symmetric, Remote fault: Link OK Packet Forwarding Engine configuration: Destination slot: 1 CoS information: Direction : Output CoS transmit queue Bandwidth Buffer Priority Limit % bps % usec 0 best-effort 95 95000000 95 NA low none 7 network-control 5 5000000 5 NA low none Interface transmit statistics: Disabled Logical interface ge-1/0/10.0 (Index 69) (SNMP ifIndex 638) (Generation 138) Flags: SNMP-Traps 0x0 Encapsulation: ENET2 Traffic statistics: Input bytes : 0 Output bytes : 0 Input packets: 0 Output packets: 0 Local statistics: Input bytes : 0 Output bytes : 0 Input packets: 0 Output packets: 0 Transit statistics: Input bytes : 0 0 bps Output bytes : 0 0 bps Input packets: 0 0 pps Output packets: 0 0 pps Protocol eth-switch, Generation: 163, Route table: 0 Flags: Trunk-Mode user@switch> show class-of-service interface ge-0/0/0 Physical interface: ge-0/0/0, Index: 165 Queues supported: 8, Queues in use: 4 Shaping rate: 100000000 bps ... ...
意义
在 命令的输出 show interfaces ge-0/0/0 statistics
中,Traffic statistics: 字段显示出口流量为 ~100 Mbps (100,223,104 bps)。命令的输出显示整形速率 show class-of-service interface ge-0/0/0
为 100,000,000 bps,表示端口整形 100 Mbps 将应用于 ge-0/0/0 接口。
验证是否已应用队列整形
目的
验证队列整形已应用于尽力服务队列。
行动
当该接口上存在 400 Mpbs 出口流量时,将队列整形应用于尽力服务队列之前的输出:
user@switch> show interfaces ge-0/0/2 extensive Physical interface: ge-0/0/2, Enabled, Physical link is Up Interface index: 239, SNMP ifIndex: 548, Generation: 242 Link-level type: Ethernet, MTU: 1514, Speed: Auto, Duplex: Auto, BPDU Error: None, MAC-REWRITE Error: None, Loopback: Disabled, Source filtering: Disabled, Flow control: Enabled, Auto-negotiation: Enabled, Remote fault: Online, Media type: Copper Device flags : Present Running Interface flags: SNMP-Traps Internal: 0x0 Link flags : None CoS queues : 8 supported, 8 maximum usable queues Hold-times : Up 0 ms, Down 0 ms Current address: 00:23:9c:0b:ae:8d, Hardware address: 00:23:9c:0b:ae:8d Last flapped : 2012-07-07 03:21:52 UTC (1d 18:02 ago) Statistics last cleared: 2012-07-07 23:54:34 UTC (21:29:59 ago) Traffic statistics: Input bytes : 0 0 bps Output bytes : 2299853696 345934816 bps Input packets: 0 0 pps Output packets: 17967609 337827 pps IPv6 transit statistics: Input bytes : 0 Output bytes : 0 Input packets: 0 Output packets: 0 Input errors: Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Policed discards: 0, L3 incompletes: 0, L2 channel errors: 0, L2 mismatch timeouts: 0, FIFO errors: 0, Resource errors: 0 Output errors: Carrier transitions: 0, Errors: 0, Drops: 0, Collisions: 0, Aged packets: 0, FIFO errors: 0, HS link CRC errors: 0, MTU errors: 0, Resource errors: 0 Egress queues: 8 supported, 4 in use Queue counters: Queued packets Transmitted packets Dropped packets 0 best-effort 0 18302337 0 1 assured-forw 0 0 0 5 expedited-fo 0 0 0 7 network-cont 0 0 0 Queue number: Mapped forwarding classes 0 best-effort 1 assured-forwarding 5 expedited-forwarding 7 network-control Active alarms : None Active defects : None MAC statistics: Receive Transmit Total octets 0 2299853696 Total packets 0 17967609 Unicast packets 0 17967609 Broadcast packets 0 0 Multicast packets 0 0 CRC/Align errors 0 0 FIFO errors 0 0 MAC control frames 0 0 MAC pause frames 0 0 Oversized frames 0 Jabber frames 0 Fragment frames 0 Code violations 0 Autonegotiation information: Negotiation status: Complete Link partner: Link mode: Full-duplex, Flow control: Symmetric, Remote fault: OK, Link partner Speed: 1000 Mbps Local resolution: Flow control: Symmetric, Remote fault: Link OK Packet Forwarding Engine configuration: Destination slot: 1 CoS information: Direction : Output CoS transmit queue Bandwidth Buffer Priority Limit % bps % usec 0 best-effort 95 950000000 95 NA low none 7 network-control 5 50000000 5 NA low none Interface transmit statistics: Disabled Logical interface ge-1/0/10.0 (Index 69) (SNMP ifIndex 638) (Generation 138) Flags: SNMP-Traps 0x0 Encapsulation: ENET2 Traffic statistics: Input bytes : 0 Output bytes : 0 Input packets: 0 Output packets: 0 Local statistics: Input bytes : 0 Output bytes : 0 Input packets: 0 Output packets: 0 Transit statistics: Input bytes : 0 0 bps Output bytes : 0 0 bps Input packets: 0 0 pps Output packets: 0 0 pps Protocol eth-switch, Generation: 163, Route table: 0 Flags: Trunk-Mode
此输出中的流量统计信息: 字段显示出口流量为 ~400 Mpbs (345,934,816 bps)。当将 30 Mbps 的队列整形应用于尽力服务队列时,会看到 和 命令的 show interfaces ge-0/0/2 statistics
以下 show class-of-service scheduler-map sched-map-be
输出:
user@switch> show interfaces ge-0/0/2 statistics Physical interface: ge-0/0/2, Enabled, Physical link is Up Interface index: 239, SNMP ifIndex: 548, Generation: 242 Link-level type: Ethernet, MTU: 1514, Speed: Auto, Duplex: Auto, BPDU Error: None, MAC-REWRITE Error: None, Loopback: Disabled, Source filtering: Disabled, Flow control: Enabled, Auto-negotiation: Enabled, Remote fault: Online, Media type: Copper Device flags : Present Running Interface flags: SNMP-Traps Internal: 0x0 Link flags : None CoS queues : 8 supported, 8 maximum usable queues Hold-times : Up 0 ms, Down 0 ms Current address: 00:23:9c:0b:ae:8d, Hardware address: 00:23:9c:0b:ae:8d Last flapped : 2012-07-07 03:21:52 UTC (1d 18:29 ago) Statistics last cleared: 2012-07-08 21:46:22 UTC (00:04:56 ago) Traffic statistics: Input bytes : 0 0 bps Output bytes : 5376128896 30097712 bps Input packets: 0 0 pps Output packets: 42001003 29392 pps IPv6 transit statistics: Input bytes : 0 Output bytes : 0 Input packets: 0 Output packets: 0 Input errors: Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Policed discards: 0, L3 incompletes: 0, L2 channel errors: 0, L2 mismatch timeouts: 0, FIFO errors: 0, Resource errors: 0 Output errors: Carrier transitions: 0, Errors: 0, Drops: 0, Collisions: 0, Aged packets: 0, FIFO errors: 0, HS link CRC errors: 0, MTU errors: 0, Resource errors: 0 Egress queues: 8 supported, 4 in use Queue counters: Queued packets Transmitted packets Dropped packets 0 best-effort 0 41986978 57813642 1 assured-forw 0 0 0 5 expedited-fo 0 0 0 7 network-cont 0 0 0 Queue number: Mapped forwarding classes 0 best-effort 1 assured-forwarding 5 expedited-forwarding 7 network-control Active alarms : None Active defects : None MAC statistics: Receive Transmit Total octets 0 5376128896 Total packets 0 42001003 Unicast packets 0 42001003 Broadcast packets 0 0 Multicast packets 0 0 CRC/Align errors 0 0 FIFO errors 0 0 MAC control frames 0 0 MAC pause frames 0 0 Oversized frames 0 Jabber frames 0 Fragment frames 0 Code violations 0 Autonegotiation information: Negotiation status: Complete Link partner: Link mode: Full-duplex, Flow control: Symmetric, Remote fault: OK, Link partner Speed: 1000 Mbps Local resolution: Flow control: Symmetric, Remote fault: Link OK Packet Forwarding Engine configuration: Destination slot: 1 CoS information: Direction : Output CoS transmit queue Bandwidth Buffer Priority Limit % bps % usec 0 best-effort r r r NA low none Interface transmit statistics: Disabled Logical interface ge-1/0/10.0 (Index 69) (SNMP ifIndex 638) (Generation 138) Flags: SNMP-Traps 0x0 Encapsulation: ENET2 Traffic statistics: Input bytes : 0 Output bytes : 0 Input packets: 0 Output packets: 0 Local statistics: Input bytes : 0 Output bytes : 0 Input packets: 0 Output packets: 0 Transit statistics: Input bytes : 0 0 bps Output bytes : 0 0 bps Input packets: 0 0 pps Output packets: 0 0 pps Protocol eth-switch, Generation: 163, Route table: 0 Flags: Trunk-Mode
user@switch> show class-of-service scheduler-map sched-map-be Scheduler map: sched-map-be, Index: 31271 Scheduler: voice-sched-queue-shap, Forwarding class: best-effort, Index: 64106 Transmit rate: remainder, Rate Limit: none, Buffer size: remainder, Buffer Limit: none, Priority: low Excess Priority: unspecified Shaping rate: 30000000 bps Drop profiles: Loss priority Protocol Index Name High non-TCP 1 <default-drop-profile> High TCP 1 <default-drop-profile>
意义
在 命令的输出中 show interfaces ge-0/0/2 statistics
,Traffic statistics: 字段显示出口流量为 ~30 Mbps (30,097,712 bps)。命令的输出显示,整形 show class-of-service scheduler-map sched-map-be
速率 30,000,000 bps(即 30 Mbps)将应用于尽力服务队列。