Example for Configuring Rate Limiting in a Specified Time Range

Procedure

1. Create a VLAN and configure interfaces.

   # Create VLAN 10 on the Switch.

   <HUAWEI> system-view
   [HUAWEI] sysname Switch
   [Switch] vlan 10
   [Switch-vlan10] quit

   # Configure GE1/0/1 and GE2/0/1 on the Switch as trunk interfaces and add them to VLAN 10.

   [Switch] interface gigabitethernet 1/0/1
   [Switch-GigabitEthernet1/0/1] port link-type trunk
   [Switch-GigabitEthernet1/0/1] port trunk allow-pass vlan 10
   [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 10
   [Switch-GigabitEthernet2/0/1] quit

   

   Configure the interface of the LSW connected to the Switch as a trunk interface and add it to VLAN 10.

   # Create VLANIF 10 and set its IP address to 192.168.1.1/24.

   [Switch] interface vlanif 10
   [Switch-Vlanif10] ip address 192.168.1.1 24
   [Switch-Vlanif10] quit

   

   On the router, set the IP address of the interface connected to the Switch to 192.168.1.2/24, and configure a sub-interface on the interface to terminate the VLAN.

2. Create a periodic time range working_time that defines work hours from 8:30 to 18:00.

   [Switch] time-range working_time 08:30 to 18:00 working-day  //Define the work hours.
   

3. Configure ACL 2001 and define three rules to limit the bandwidth of packets from 192.168.1.10, 192.168.1.11, and 192.168.1.12 during work hours.

   [Switch] acl number 2001
   [Switch-acl-basic-2001] rule permit source 192.168.1.10 0 time-range working_time  //Limit the rate of packets from 192.168.1.10 at work hours.
   [Switch-acl-basic-2001] rule permit source 192.168.1.11 0 time-range working_time  //Limit the rate of packets from 192.168.1.11 at work hours.
   [Switch-acl-basic-2001] rule permit source 192.168.1.12 0 time-range working_time  //Limit the rate of packets from 192.168.1.12 at work hours.
   [Switch-acl-basic-2001] quit

4. Reference ACL 2001 in a traffic classifier to classify packets.

   [Switch] traffic classifier c1
   [Switch-classifier-c1] if-match acl 2001
   [Switch-classifier-c1] quit

5. Configure a traffic behavior to set the rate limit to 4 Mbit/s.

   [Switch] traffic behavior b1
   [Switch-behavior-b1] car cir 4096  //Limit the Internet access rate to 4 Mbit/s at work hours.
   [Switch-behavior-b1] statistic enable
   [Switch-behavior-b1] quit

6. Configure a traffic policy and apply the traffic policy to GE1/0/1 in the inbound direction.

   [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] quit

7. 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 2001  

   # 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                                                                    
         Committed Access Rate:                                                    
           CIR 4096 (Kbps), PIR 4096 (Kbps), CBS 770048 (byte), PBS 1282048 (byte) 
           Color Mode: color Blind                                                 
           Conform Action: pass                                                    
           Yellow  Action: pass                                                    
           Exceed  Action: discard 
         Statistic: enable

   # Check the traffic policy that is applied to the interface. During work hours, when the rate of packets from each network segment on GE1/0/1 in the inbound direction is larger than 4 Mbit/s, packet loss occurs. The rate of packets from each network segment is limited within 4 Mbit/s.

   [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:                        38,761
                     |      Bytes:                               -
                     |      Rate(pps):                           0
                     |      Rate(bps):                           -
   ---------------------------------------------------------------------
      Passed         |      Packets:                        25,534
                     |      Bytes:                               -
                     |      Rate(pps):                           0
                     |      Rate(bps):                           -
   ---------------------------------------------------------------------
      Dropped        |      Packets:                        13,227
                     |      Bytes:                               -
                     |      Rate(pps):                           0
                     |      Rate(bps):                           -
   ---------------------------------------------------------------------
        Filter       |      Packets:                             0
                     |      Bytes:                               -
   --------------------------------------------------------------------- 
        Car          |      Packets:                        13,227
                     |      Bytes:                               -
   ---------------------------------------------------------------------