Configure Rate Limiting

SEFOS can be configured to limit the rate of traffic received on a particular interface. If the traffic is above the configured threshold level, the packet gets dropped. The following example illustrates the configuration for limiting a multicast traffic at port 25 to a rate of 50 packets per second.

See Basic SEFOS Topology for the topology for this task. port 25 and port 26 are connected to IXIA/Smartbits to monitor the rate of packet forwarding. Configure the rate limiting for multicast packets on port 25 as 50 packets per second and then generate a multicast traffic from IXIA at the rate of 1 Mbps. Packets received at port 26 must be at the rate of 50 packets per second.

1. Connect to SEFOS.

   See Connect to SEFOS.

2. Type the following commands in the switch to enable port 25 and port 26:

   SEFOS-1# configure terminal
   SEFOS-1(config)# interface xl-ethernet 0/25
   SEFOS-1(config-if)# no shutdown
   SEFOS-1(config-if)# exit
   SEFOS-1(config)# interface xl-ethernet 0/26
   SEFOS-1(config-if)# no shutdown
   SEFOS-1(config-if)# end
   

3. Set the rate limit to 50 packets per second.
   1. Enter Global Configuration mode.

      SEFOS-1# configure terminal
      

   2. Enter Interface Configuration mode.

      SEFOS-1(config)# interface xl-ethernet 0/25
      

   3. Set the rate limit to 50 packets per second.

      SEFOS-1(config-if)# storm-control multicast level 50
      

   4. Exit Global Configuration mode.

      SEFOS-1(config-if)# end
      

4. View the configuration details.

   SEFOS-1# show interface xl-ethernet 0/25 storm-control
   ...
   Multicast Storm Control     : 50
   

5. View the functionality by generating a multicast packet from IXIA at the rate of 1 Mbps to port 25.

   The packets received at the second port of IXIA are at the rate of 50 packets per second only.

Related Information

• SEFOS Setup Tasks

• Configure ACL Filters

• Configure QoS

• Configure Port Mirroring