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 1 to a rate of 50 packets per second.

See Basic SEFOS Topology for the topology for this task. Port 1 and port 2 are connected to IXIA/Smartbits to monitor the rate of packet forwarding. Configure the rate limiting for multicast packets on port 1 as 50 packets per second and then generate a multicast traffic from IXIA at the rate of 1 Mbps. Packets received at port 2 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 1 and port 2.

   SEFOS-1# configure terminal
   SEFOS-1(config)# interface extreme-ethernet 0/1
   SEFOS-1(config-if)# no shutdown
   SEFOS-1(config-if)# exit
   SEFOS-1(config)# interface extreme-ethernet 0/2
   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 extreme-ethernet 0/1

   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 extreme-ethernet 0/1 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 1.

   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