Technical data

246 Meru System Director Configuration Guide © 2012 Meru Networks, Inc.
Rate Limiting QoS Rules
Source Port flow class : none
Network Protocol : 6
Network Protocol match : on
Network Protocol flow class : on
Firewall Filter ID :
Filter Id match : none
Filter Id Flow Class : none
Packet minimum length : 0
Packet Length match : none
Packet Length flow class : none
Packet maximum length : 0
QoS Protocol : other
Average Packet Rate : 0
Action : forward
Drop Policy : head
Token Bucket Rate : 46875
Priority : 0
Traffic Control : on
DiffServ Codepoint : disabled
Qos Rule Logging : on
Qos Rule Logging Frequency : 31
Rate Limiting QoS Rules with the GUI
You can rate limit traffic for a single user by turning on Traffic Control and using the
Token Bucket Rate as the token bucket limiter. Follow these steps to rate limit the
traffic:
1. Click Configure > QoS > System Settings > QoS and Firerules tab > Add.
The QoS and Firerules Add window displays.
2. Scroll down to the lower half of the QoS and Firerules Add window.
3. Set Traffic Control On.
4. Set the token bucket rate to achieve the desired rate limit. This can be entered
in either Kbps (from 0-1000) or Mbps (from 0-64), depending on the needs of your
deployment.
5. Click OK.
The rate limit is now set.
Rate Limiting Examples
Rate-Limit Clients in the Same Subnet for TCP
To rate-limit clients from the subnet 10.11.31.0, follow these steps:
1. Determine the token bucket rate to achieve the desired rate limit. In the example
below, we’ll limit it to 3Mbps (3Mbps = 3000000bps. 3000000/8/8=46875).
2. Create the following qosrule to rate-limit clients from a particular subnet: