QOS cos/dscp/tos/ip predence
Differentiated Services Code Point dscp 差分服务代码点Class Of Service cosCos是二层ISL或者802.1Q数据帧的优先级标记,3个bit,范围0-7;Tos是三层数据包的服务类型标记,也是3个bit,范围0-7,同样可当作优先级标记,另外5个实际指示Delay,Throughput,Reliability等特性的bit位一般没有
Differentiated Services Code Point dscp 差分服务代码点Class Of Service cosCos是二层ISL或者802.1Q数据帧的优先级标记,3个bit,范围0-7;Tos是三层数据包的服务类型标记,也是3个bit,范围0-7,同样可当作优先级标记,另外5个实际指示Delay,Throughput,Reliability等特性的bit位一般没有
预配置如下:[r1] # sysname r1 # interface Serial1/0 ip address 20.0.0.1 255.255.255.0 nat server protocol tcp global 20.0.0.21 23 inside 10.1.1.1 23 # interface GigabitEthernet0/1 port link-mode route comb
预配置如下:[r1] # sysname r1 # interface Serial1/0 ip address 20.0.0.1 255.255.255.0 # interface GigabitEthernet0/1 port link-mode route combo enable copper ip address 10.1.1.254 255.255.255.0 # return [
预配置如下:[r1] # sysname r1 # interface Serial1/0 ip address 20.0.0.1 255.255.255.0 # interface GigabitEthernet0/0 port link-mode route combo enable copper ip address 10.0.0.254 255.255.255.0 # ip route-
预配置如下:[r7isp] # sysname r7isp # interface Serial1/0 ip address 20.0.0.100 255.255.255.0 # return [r1] sysname r1 # interface Serial1/0 ip address 20.0.0.1 255.255.255.0 # interface GigabitEthernet0
预配置[r7isp] # sysname r7isp # interface Serial1/0 ip address 20.0.0.100 255.255.255.0 # return [r1] sysname r1 # interface Serial1/0 ip address 20.0.0.1 255.255.255.0 # interface GigabitEthernet0/0
QoS 常见问题解答https://www.cisco.com/c/zh_cn/support/docs/quality-of-service-qos/qos-policing/22833-qos-faq.html22833-qos-faq.pdfQoS Policinghttps://www.cisco.com/c/zh_cn/tech/quality-of-service-qos/qos-po
Qos设置:第1步:定义传输类型你必须告诉路由器,哪种数据流需要进行QoS管理。你可以通过访问控制列表(ACL)或者基于网络应用程序识别(NBAR)的方式来进行定义。其中ACL是为路由器设定不同传输数据类型的传统方式。而NBAR则是让路由器识别流经路由器的各种数据的类别,比如HTTP数据是HTTP类别,Skype是Skype类别。但是路由器可识别的应用程序协议数量是有限的,这依赖于路由器内部存储的
一、配置步骤1.定义ACL以匹配数据流 ip access-list extended aclname2.配置流量分类和策略 class-map [match-all(默认:完全符合)/Match-any]―――(建立一个流量分类的策略) match access-group ――――――(使用ACL进行流量分类,可以重复配置) match input-interface &l
conf t access-list 21 permit 192.168.1.100 0.0.0.0 //允许单个IP使用1M带宽,需要修改IP class-map match-all high-traffic match access-group 21 exit policy-map Qos class high-traffic bandwidth percent 25 exit //一个