Brocade Communications Systems ServerIron ADX 12.4.00 Service Manual download pdf (Page 52)

40 ServerIron ADX Advanced Server Load Balancing Guide

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Configuring TCS

The following table lists the entries that need to be programmed in the CAM for hardware

forwarding of pass- through traffic.

Configuring TCS

TCS is disabled by default. To set up TCS, perform the following tasks.

1. Assign a name and IP address to each web cache server.

2. Configure port to each web cache server.

3. Assign web cache servers to specific cache groups.

4. Enable TCS. Refer to “Enabling TCS” on page 44.

NOTE

You cannot enable the web cache feature on both a global (switch) and local (interface) basis.

5. Assign an interface to a cache group (optional).

6. Define distribution of web requests within a cache group (optional).

7. Modify default settings for TCS parameters (optional).

8. Save the configuration to flash.

Configuration notes

Consider the following:

• Once TCS is enabled on a switch, all ports on the switch are members of cache group 1 by

default.

• You can configure up to 14 cache groups.

• Web cache servers must be members of a cache group.

• A cache group is defined in terms of input ports to the ServerIron ADX. To give a client access

to a group of cache servers, the input port connecting the client to the ServerIron ADX must be

in the cache group that contains the cache servers. If you plan to have only one cache group,

you do not need to add the input ports to the cache group because all ports are members of

cache group 1 by default.

• If you do not want a specific port to support TCS (for example, you want to redirect HTTP traffic

for that port directly to the Internet instead), then you need to remove that port from default

cache group 1.

TABLE 3 Required CAM programming for VIPs with reverse proxy SLB enabled

Level Match Hash

1 Destination IP = cache enabled

VIP

Source IP address

2 Source IP = cache enabled VIP Destination IP address

3 Destination port = cache port Source IP address

4 Source port = cache port Destination IP address

1 2 ... 47 48 49 50 51 52 53 54 55 56 57 ... 135 136

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Brocade Communications Systems ServerIron ADX 12.4.00 Service Manual Page 52