Use the BUFFERS statement to specify the buffer size for IP datagrams.
Parameters
- max_packet_size
- The maximum IP packet size. This value must match the max_packet_size parameter on the GATEWAY statement in the hlq.PROFILE.TCPIP data set, and must be in the range of 576 - 2 048.
- add_buffers
- The number of additional buffers to allocate, in addition to the minimum of 2 for each logical channel.
- vc_queue_limit
- The limit on the number of buffers queued outbound on any single virtual circuit.
Examples
The following statement specifies
a maximum IP packet size of 1024, an allocation of 50 additional buffers,
and a limit of 4 queued outbound buffers on any SVC:
*
Buffers 1024 50 4
*Usage notes
- This maximum IP packet size must be at least as large as the largest max_packet_size parameter on the GATEWAY entries for X.25 NPSI LINKS in the hlq.PROFILE.TCPIP data set.
- Additional buffers are required for coping with traffic peaks and holding outbound IP datagrams while new X.25 connections are being established. Use a larger value when many X.25 destinations are called in a short period of time.