Proxy Cache

To View or Modify Advanced Array Configuration Properties (Proxy Cache Category)

1. Under the Networks heading (see Figure 5-1), enter or accept the values for the following properties:

Service Address Timeout (sec)

A Netra Proxy Cache array maintains a proxy cache service at a given service address in the event of host failure(s). However, if the original owner of a service address has not reclaimed its address after some extended period (604800 seconds, or 7 days, by default), the Netra Proxy Cache software assumes that the proxy cache service will no longer be offered at that address and removes the address from the list of service addresses in the Netra Proxy Cache array. The default value cited above is probably appropriate for most installations.

Control Port

The port number the array software uses for multicast messages associated with the proxy cache service. The software uses the combination of the multicast address (mentioned above) and a port number for listening for multicast messages. By default, the software uses a port number of 1860, which has been registered with the IANA for use with the Netra Proxy Cache product. You can select port numbers other than 1860 from the pulldown menu. However, only 1860 has been registered with the IANA.

Service Address Begin and Service Address End (optional)

The array software enables you to specify a range of service addresses that are disabled at startup. Service addresses are then assigned to hosts through normal array activity. By disabling addresses at startup, the Netra Proxy Cache Array starts with a clean slate and prevents the possibility of an incorrect address assignment that might linger following abnormal termination of one or more hosts in the array. Use of this feature requires that your service addresses are in a consecutive range; for example, 129.144.102.1, 129.144.102.2, and 129.144.102.3.