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配置MQC实现流量监管示例
组网需求
Switch通过接口GE2/0/1与路由器互连，企业可经由Switch和路由器访问网络，如图4-10所示。
语音业务对应的VLAN ID为120，视频业务对应的VLAN ID为110，数据业务对应的VLAN ID为100。
在Switch上需要对不同业务的报文分别进行流量监管，以将流量限制在一个合理的范围之内，并保证各业务的带宽需求。
不同业务对于服务质量的需求不同，语音业务对服务质量要求最高，视频业务次之，数据业务要求最低，所以在Switch中还需要重标记不同业务报文的DSCP优先级，以便于路由器按照报文的不同优先级分别进行处理，保证各种业务的服务质量。
具体配置需求如表4-9所示。
配置思路
采用如下的思路配置MQC实现流量监管：
- 创建VLAN，并配置各接口，使企业能够通过Switch访问网络。
- 在Switch上配置基于VLAN ID进行流分类的匹配规则。
- 在Switch上配置流行为，对报文进行流量监管并且重标记报文的DSCP优先级。
- 在Switch上配置流量监管策略，绑定已配置的流行为和流分类，并应用到Switch与LSW连接的接口上。
操作步骤
- 创建VLAN并配置各接口
# 在Switch上创建VLAN 100、110、120。
<HUAWEI> system-view [HUAWEI] sysname Switch [Switch] vlan batch 100 110 120
# 将接口GE1/0/1、GE2/0/1的接入类型分别配置为trunk，并分别将接口GE1/0/1和GE2/0/1加入VLAN 100、VLAN 110、VLAN 120。
[Switch] interface gigabitethernet 1/0/1 [Switch-GigabitEthernet1/0/1] port link-type trunk [Switch-GigabitEthernet1/0/1] port trunk allow-pass vlan 100 110 120 [Switch-GigabitEthernet1/0/1] quit [Switch] interface gigabitethernet 2/0/1 [Switch-GigabitEthernet2/0/1] port link-type trunk [Switch-GigabitEthernet2/0/1] port trunk allow-pass vlan 100 110 120 [Switch-GigabitEthernet2/0/1] quit
- 配置流分类
# 在Switch上创建流分类c1～c3，对不同业务流按照其VLAN ID进行分类。
[Switch] traffic classifier c1 operator and [Switch-classifier-c1] if-match vlan-id 120 [Switch-classifier-c1] quit [Switch] traffic classifier c2 operator and [Switch-classifier-c2] if-match vlan-id 110 [Switch-classifier-c2] quit [Switch] traffic classifier c3 operator and [Switch-classifier-c3] if-match vlan-id 100 [Switch-classifier-c3] quit
- 配置流量监管行为
# 在Switch上创建流行为b1～b3，对不同业务流进行流量监管以及重标记优先级。
[Switch] traffic behavior b1 [Switch-behavior-b1] car cir 2000 pir 10000 green pass [Switch-behavior-b1] remark dscp 46 [Switch-behavior-b1] statistic enable [Switch-behavior-b1] quit [Switch] traffic behavior b2 [Switch-behavior-b2] car cir 4000 pir 10000 green pass [Switch-behavior-b2] remark dscp 30 [Switch-behavior-b2] statistic enable [Switch-behavior-b2] quit [Switch] traffic behavior b3 [Switch-behavior-b3] car cir 4000 pir 10000 green pass [Switch-behavior-b3] remark dscp 14 [Switch-behavior-b3] statistic enable [Switch-behavior-b3] quit
- 配置流量监管策略并应用到接口上
# 在Switch上创建流策略p1，将流分类和对应的流行为进行绑定并将流策略应用到接口GE1/0/1入方向上，对报文进行流量监管和重标记。
[Switch] traffic policy p1 [Switch-trafficpolicy-p1] classifier c1 behavior b1 [Switch-trafficpolicy-p1] classifier c2 behavior b2 [Switch-trafficpolicy-p1] classifier c3 behavior b3 [Switch-trafficpolicy-p1] quit [Switch] interface gigabitethernet 1/0/1 [Switch-GigabitEthernet1/0/1] traffic-policy p1 inbound [Switch-GigabitEthernet1/0/1] quit
- 验证配置结果
# 查看流分类的配置信息。
[Switch] display traffic classifier user-defined User Defined Classifier Information: Classifier: c2 Precedence: 10 Operator: AND Rule(s) : if-match vlan-id 110 Classifier: c3 Precedence: 15 Operator: AND Rule(s) : if-match vlan-id 100 Classifier: c1 Precedence: 5 Operator: AND Rule(s) : if-match vlan-id 120 Total classifier number is 3# 查看流策略的配置信息，以流策略p1为例。
[Switch] display traffic policy user-defined p1 User Defined Traffic Policy Information: Policy: p1 Classifier: c1 Operator: AND Behavior: b1 Permit Committed Access Rate: CIR 2000 (Kbps), PIR 10000 (Kbps), CBS 250000 (byte), PBS 1250000 (byte) Color Mode: color Blind Conform Action: pass Yellow Action: pass Exceed Action: discard Remark: Remark DSCP ef Statistic: enable Classifier: c2 Operator: AND Behavior: b2 Permit Committed Access Rate: CIR 4000 (Kbps), PIR 10000 (Kbps), CBS 500000 (byte), PBS 1250000 (byte) Color Mode: color Blind Conform Action: pass Yellow Action: pass Exceed Action: discard Remark: Remark DSCP af33 Statistic: enable Classifier: c3 Operator: AND Behavior: b3 Permit Committed Access Rate: CIR 4000 (Kbps), PIR 10000 (Kbps), CBS 500000 (byte), PBS 1250000 (byte) Color Mode: color Blind Conform Action: pass Yellow Action: pass Exceed Action: discard Remark: Remark DSCP af13 Statistic: enable# 查看在接口上应用的流策略信息，以接口GE1/0/1为例。
[Switch] display traffic policy statistics interface gigabitethernet 1/0/1 inbound Interface: GigabitEthernet1/0/1 Traffic policy inbound: p1 Rule number: 3 Current status: success Statistics interval: 300 --------------------------------------------------------------------- Board : 1 --------------------------------------------------------------------- Matched | Packets: 0 | Bytes: - | Rate(pps): 0 | Rate(bps): - --------------------------------------------------------------------- Passed | Packets: 0 | Bytes: - | Rate(pps): 0 | Rate(bps): - --------------------------------------------------------------------- Dropped | Packets: 0 | Bytes: - | Rate(pps): 0 | Rate(bps): - --------------------------------------------------------------------- Filter | Packets: 0 | Bytes: - --------------------------------------------------------------------- Car | Packets: 0 | Bytes: - ---------------------------------------------------------------------
配置文件
Switch的配置文件
# sysname Switch # vlan batch 100 110 120 # traffic classifier c1 operator and precedence 5 if-match vlan-id 120 traffic classifier c2 operator and precedence 10 if-match vlan-id 110 traffic classifier c3 operator and precedence 15 if-match vlan-id 100 # traffic behavior b1 permit car cir 2000 pir 10000 cbs 250000 pbs 1250000 mode color-blind green pass yellow pass red discard remark dscp ef statistic enable traffic behavior b2 permit car cir 4000 pir 10000 cbs 500000 pbs 1250000 mode color-blind green pass yellow pass red discard remark dscp af33 statistic enable traffic behavior b3 permit car cir 4000 pir 10000 cbs 500000 pbs 1250000 mode color-blind green pass yellow pass red discard remark dscp af13 statistic enable # traffic policy p1 match-order config classifier c1 behavior b1 classifier c2 behavior b2 classifier c3 behavior b3 # interface GigabitEthernet1/0/1 port link-type trunk port trunk allow-pass vlan 100 110 120 traffic-policy p1 inbound # interface GigabitEthernet2/0/1 port link-type trunk port trunk allow-pass vlan 100 110 120 # return
