Reference Guide

ZCOM Tables and Data Structures
ZCOM Header Structure
Chapter 354
issues a transmit request to the E1/T1 card and the card does not have
enough free buffers to hold the request data, the Mux will reject the
request with an “out of buffers” error. The DAM will retry the request
after an unacknowledged transmit request completes. This field is used
to minimize the number of retries (and thereby increase overall
performance) by imposing a limit on the size of unacknowledged
transmit requests. This value is configured through the E1T1-Port-Limit
parameter in the TTGEN configuration file and is used to initialize the
individual port and subchannel limit array iplimit[] kept in the interface
table (zift_type).
HOSTYPE - Type of operating system
This field indicates the type of operating system that manipulates the
data structures. The allowed values are 0, 32 (32-bit kernel) or 64 (64-bit
kernel). It is first set up by TTGEN to 0. Then it is set to 32 or 64 by
ZMON when it initializes the ZCOM kernel memory block.