Example for Configuring MQC-based Local Traffic Mirroring
Networking Requirements
In Figure 8-13, the science and technology department and administrative department of a company use the network segments 10.1.1.0/24 and 10.1.2.0/24, respectively, to access the Internet or communicate with each other through the Switch. The monitoring device (Server) is directly connected to the Switch.
- Traffic to the Internet
- Traffic to the administrative department
Configuration Roadmap
- Configure GE1/0/2 of the Switch as a local observing port to forward mirrored packets to the Server.
- Configure a traffic classifier on the Switch to match Internet access traffic and traffic sent to the administrative department, and configure a traffic behavior to mirror traffic to a local observing port.
- Configure a traffic policy on the Switch, bind the traffic classifier and traffic behavior to the traffic policy, and apply the traffic policy to GE1/0/1.
Procedure
- Configure an observing port.
# Configure GE1/0/2 of the Switch as a local observing port.
<HUAWEI> system-view [HUAWEI] sysname Switch [Switch] observe-port 1 interface gigabitethernet 1/0/2
# Disable the observing port from forwarding data packets. This configuration is optional and recommended, so that it forwards only mirrored packets.
[Switch] observe-port 1 forwarding disable
- Configure a traffic classifier.
# Create a traffic classifier c1 on the Switch, and configure rules to match two types of traffic: traffic with source address 10.1.1.0/24 and destination TCP port number WWW and traffic with source address 10.1.1.0/24 and destination address 10.1.2.0/24.
[Switch] acl number 3000 [Switch-acl-adv-3000] rule permit tcp source 10.1.1.0 0.0.0.255 destination-port eq www [Switch-acl-adv-3000] quit [Switch] acl number 3001 [Switch-acl-adv-3001] rule permit ip source 10.1.1.0 0.0.0.255 destination 10.1.2.0 0.0.0.255 [Switch-acl-adv-3001] quit [Switch] traffic classifier c1 operator or [Switch-classifier-c1] if-match acl 3000 [Switch-classifier-c1] if-match acl 3001 [Switch-classifier-c1] quit
- Configure a traffic behavior.
# Create a traffic behavior b1 on the Switch, and define traffic mirroring in the traffic behavior to copy specified traffic to local observing port GE1/0/2.
[Switch] traffic behavior b1 [Switch-behavior-b1] mirroring to observe-port 1 [Switch-behavior-b1] quit
When configuring outbound traffic mirroring on the cards (except X series cards) that support outbound traffic mirroring, do not configure other traffic behaviors (except the traffic statistics collection function in V100R006 and earlier versions). From V200R001 to V200R010, the permit action generated by default when a traffic behavior is created must also be deleted; otherwise, outbound traffic mirroring is ineffective.
- Configure a traffic policy and apply it to an interface.
# Create a traffic policy named p1 on the Switch, bind the traffic behavior and traffic classifier to the traffic policy, and apply the traffic policy to the inbound direction of GE1/0/1 to monitor specified traffic of the science and technology department.
[Switch] traffic policy p1 [Switch-trafficpolicy-p1] classifier c1 behavior b1 [Switch-trafficpolicy-p1] quit [Switch] interface gigabitethernet 1/0/1 [Switch-GigabitEthernet1/0/1] traffic-policy p1 inbound [Switch-GigabitEthernet1/0/1] return
- Verify the configuration.
# Check the traffic classifier configuration.
<Switch> display traffic classifier user-defined c1 User Defined Classifier Information: Classifier: c1 Precedence: 5 Operator: OR Rule(s) : if-match acl 3000 if-match acl 3001# Check the traffic policy configuration.
<Switch> display traffic policy user-defined p1 User Defined Traffic Policy Information: Policy: p1 Classifier: c1 Operator: OR Behavior: b1 Permit Mirroring to observe-port 1# Check the observing port configuration.
<Switch> display observe-port ---------------------------------------------------------------------- Index : 1 Untag-packet : No Forwarding : No Interface : GigabitEthernet1/0/2 ----------------------------------------------------------------------
# Check the mirroring configuration.
<Switch> display port-mirroring ---------------------------------------------------------------------- Observe-port 1 : GigabitEthernet1/0/2 ---------------------------------------------------------------------- Stream-mirror: ---------------------------------------------------------------------- Behavior Direction Observe-port ---------------------------------------------------------------------- 1 b1 - Observe-port 1 ----------------------------------------------------------------------
