TOPIC
After having installed Mac OS 8.6 I've noticed that my TCP/IP stack remains loaded when physically connected through Ethernet despite the fact that no applications or other services seem to be currently utilizing TCP/IP.
DISCUSSION The "Load only when needed" checkbox available through the Options button in the TCP/IP control panel no longer unloads the TCP/IP stack after two minutes of inactivity when physically connected through ARP-able media such as Ethernet. This change was introduced in Mac OS 8.6. Versions of Open Transport prior to 2.0.3 unload the TCP/IP stack two minutes after the last endpoint was closed. Open Transport 2.0.3 and later continue to respect the configured setting in the sense that the TCP/IP stack will not load until an endpoint is opened if the "Load only when needed" option is enabled. Point to Point Protocol (PPP) or Serial Line Internet Protocol (SLIP) sessions made through a serial connection will continue to respect the settings as configured in the TCP/IP control panel. The stack will unload for PPP and SLIP connections that are torn down. Note: System extensions, such as the Time Synchronizer extension, can load the TCP/IP stack at startup and will not unload so the TCP/IP stack will remain active as the endpoint is never closed. |
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| Document Information | |
| Product Area: | Communications-Networking |
| Category: | Open Transport |
| Sub Category: | General Topics |
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