默认 Junos OS CoS 设置
如果未在路由器上配置任何 CoS 设置,该软件会执行一些 CoS 功能,确保在网络拥塞时以最小延迟转发用户流量和协议数据包。某些默认映射会自动应用于您配置的每个 逻辑接口 。其他默认映射(如显式默认分类符和 重写规则)仅在将其与某个接口显式关联时才会运行。
您可以通过发出show class-of-service
操作模式命令来显示默认 CoS 设置。本节包含显示默认 CoS 设置的示例输出。为了简洁性,示例输出被截短。
show-of-service
user@host> show class-of-service
注意:
某些平台在命令后 show class-of-service
需要一个参数。参数是选择要显示的以下输出的一部分。
默认转发类
Forwarding class Queue best-effort 0 expedited-forwarding 1 assured-forwarding 2 network-control 3
默认代码点别名
Code point type: dscp Alias Bit pattern af11 001010 af12 001100 ... Code point type: dscp-ipv6 ... Code point type: exp ... Code point type: ieee-802.1 ... Code point type: inet-precedence ... Code point type: ieee-802.1ad ...
默认分类符
Classifier: dscp-default, Code point type: dscp, Index: 7 ... Classifier: dscp-ipv6-default, Code point type: dscp-ipv6, Index: 8 ... Classifier: exp-default, Code point type: exp, Index: 9 ... Classifier: ieee8021p-default, Code point type: ieee-802.1, Index: 10 ... Classifier: ipprec-default, Code point type: inet-precedence, Index: 11 ... Classifier: ipprec-compatibility, Code point type: inet-precedence, Index: 12 ... Classifier: ieee8021ad-default, Code point type: ieee-802.1ad, Index: 41 ...
默认帧中继丢失优先级图
Loss-priority-map: frame-relay-de-default, Code point type: frame-relay-de, Index: 13 Code point Loss priority 0 low 1 high
默认重写规则
Rewrite rule: dscp-default, Code point type: dscp, Index: 24 Forwarding class Loss priority Code point best-effort low 000000 best-effort high 000000 ... Rewrite rule: dscp-ipv6-default, Code point type: dscp-ipv6, Index: 25 ... Rewrite rule: exp-default, Code point type: exp, Index: 26 ... Rewrite rule: ieee8021p-default, Code point type: ieee-802.1, Index: 27 ... Rewrite rule: ipprec-default, Code point type: inet-precedence, Index: 28 ... Rewrite rule: ieee8021ad-default, Code point type: ieee-802.1ad, Index: 42 ...
默认丢弃配置文件
Drop profile: <default-drop-profile>, Type: discrete, Index: 1 Fill level Drop probability 100 100
默认调度器
Scheduler map: <default>, Index: 2 Scheduler: <default-be>, Forwarding class: best-effort, Index: 17 Transmit rate: 95 percent, Rate Limit: none, Buffer size: 95 percent, Priority: low Drop profiles: Loss priority Protocol Index Name Low Any 1 <default-drop-profile> High Any 1 <default-drop-profile> ...