OpenSwitch runs in one of four coordination modes, determined by the value that you assign to the OpenSwitch configuration parameter COORD_MODE. The coordination mode specifies how OpenSwitch should respond in the presence of a coordination module. For details on using the configuration file, see Chapter 5, “Using the Configuration File,” in the OpenSwitch Administration Guide.
The values for COORD_MODE are:
Mode |
Description |
|---|---|
NONE |
OpenSwitch runs autonomously and makes all switching and routing decisions without a CM. Coordination modules can still connect to OpenSwitch, but do not receive notifications. |
AVAIL |
In the absence of a CM, OpenSwitch runs autonomously. If a CM is available and connected to the OpenSwitch server, the CM is used. |
ALWAYS |
A CM is required. If a CM is unavailable when a thread issues a request, the thread sleeps until a CM becomes available. |
ENFORCED |
A CM is required. If a CM is unavailable when a client makes a request, the request is refused and an informational message is sent back to the client. |
