Size of driver's image buffer. 0x0507 ∙ 1287
IG_ISIS_TAG_BUFSIZE lets a driver specify the size of its preferred image buffer. In almost every case, IG_ISIS_TAG_BUFSIZE is set to 8192, which has been shown to be an optimum value almost always.
IG_ISIS_TAG_TYPE_SHORT
All.
Almost always 8192.
This is an old, mostly unused tag that is included for compatibility only. An application can query the value of IG_ISIS_TAG_BUFSIZE to determine a driver's preferred buffer size to be used in IG_ISIS_run_zone. We recommend that you use 8192 without querying for the preferred buffer size.