Configuring and Controlling the Network

Allows the NL2 to be run in verbose mode.

• 1 (Enable verbose logging)

• 0 (Disable verbose logging)

The processor number on which the NL2’s main thread will run.

Note: Processor numbers are zero based. Processor 0 is the first processor.

The priority of the NL2’s main thread. This value must be within the range 0 to 127.

The minimum size of the NL2 process's external MSpace in bytes. The minimum is 65536 bytes. 

The best value to use depends on the number of enabled interfaces and queues.

Controls whether the NL2 process will request additional memory when its MSpace is exhausted. 

• 1 (Expand)
• 0 (Do not expand) 

The amount of memory, in kilobytes, allocated to the TCP/IP stack.

The number of threads allowed to run concurrently within the TCP/IP Stack. The range is 0 to 10340.

The TCP/IP Stack needs to initialize certain attributes when started to allow a certain number of threads to run and provide services for each client that requests services.

For example, running a client and a server application will require 1 concurrency each. The TCP/IP Stack running by itself requires 1 concurrency to run the Loopback service. Loading and managing interfaces requires an average of 3 threads, thus a concurrency of 3 for each interface.

Note: We recommend that this value be calculated automatically (0, default).

Note: If the TCP/IP Stack requires more threads than the initialization process prepared for, the Stack will crash.

The processor number on which the TCP/IP Stack will run.

Note: Processor numbers are zero-based. Processor 0 is the first processor.

The maximum number of sockets. The TCP/IP Stack allocates actual socket memory when it creates a socket, so it must know the maximum number of sockets it must create.

The specified value must be in the range of 1 to 32765. The default value is 64.

Note: In the running system, the socket range is 0 to the maximum number of sockets. For example, if the maximum number of sockets is set to 64, the range is 0 to 63.

The Stack timer tick interval. The Stack timer is an internal timer used for all internal synchronization. The TCP/IP Stack requires a fixed-time notification for every Stack timer interval to update its elapsed time counters. Since several protocols are implemented within the Stack, dealing with individual timers would be cumbersome. Therefore, the TCP/IP Stack is optimized to use a single notification for how much time has elapsed. The Stack timer system manages all the different timers used within the TCP/IP Stack.

The specified value must be within the range of 1 to 1000 milliseconds.

The ideal processor for the TCP/IP Stack Timer.

Note: Processor numbers are zero based. Processor 0 is the first processor.

The time-out interval on IP reassembly.

Note: We recommend that you decrease the IP reassembly time-out value so that it is less than the wrap-around time in an IP ID field.

The minimum size of the TCP/IP process's external MSpace, in bytes. The minimum is 65536 bytes.

This value needs to be large enough to support TCP/IP Stack heap allocation and must be at least the TCP/IP Stack heap allocation size plus 2176 kilobytes. You can use the following formula to determine the amount of memory you need to allocate:

Minimum size for external MSpace = StackHeap(k) + 2176k + (64k * numberOfEnabledInterfaces)

Controls whether the TCP/IP process will request additional memory when its MSpace is exhausted.

• 1 (Expand)
• 0 (Do not expand)

Sets the maximum number of ARP entries allowed by the TCP/IP Stack. Each ARP cache entry is 100 bytes. It is recommended that the maximum ARP cache entries supported be greater than the total number of devices with which the interface communicates.

Note: If the value is too small, the ARP cache can overflow. The potential for an overflow increases when the most network devices are offline.

Note: When an overflow occurs, the TCP/IP Stack presents the warning message tfRtClone: ARP cache full, which indicates that the maximum number of entries supported should be increased.