Nortel Networks WEB OS 212777 - Manual (Page 180)

Web OS 10.0 Application Guide
180 n Chapter 7: Filtering
212777-A, February 2002
In Figure 7-5 , the default filter 224 configured for Any is applied for all other connection
requests.
Figure 7-5 Configuring Clients with Different Rates
Configuring TCP Rate Limiting Filters
TCP rate limiting can be configured for all filter types (allow, redir, SIP, and DIP) and parame-
ters. You can specify the source IP address and mask options in the filter configuration menu to
monitor a client or a group of clients. The destination IP address and mask options are used to
monitor connections to a virtual IP address or a group of virtual IP addresses.
Basic TCP Rate Limiting Filter
The following example shows how to configure TCP rate limiting for Filter 10 in Figure 7-5 .
1. Enable TCP rate limiting for the filter.
2. Configure maximum number of TCP connections.
The maxcon value is specified in units of 10. The value of 3 indicates a total of 30 TCP con-
nections.
>> # /cfg/slb/filt 10/adv/tcp
>> TCP Advanced menu # tcplim ena (Enable TCP rate limiting)
>> TCP Advanced menu # maxcon 3 (Set the max. number of connections)
Web Switch
Internet
Real servers Clients
1
2
3
4
Filter 10: 10 conn/sec
Filter 20: 20 conn/sec
Filter 30: 30 conn/sec
Filter 224: Allow Any
Client 1 limit: 10 conn/sec
Client 2 limit: 20 conn/sec
Client 3 limit: 30 conn/sec
Client 4 limit: 10 conn/sec