
Tracing and Logging Utilities
strace
Chapter 7 189
A simple way to think of dual-port sub codes is as the
decimal equivalent of 7030 + n (expressed in
hexadecimal), where n is the card instance number. For
example, for the device file x25_1p2, the sub in
hexadecimal would be
7030 + 1 = 7031
which, when converted to decimal gives you 28721.
Some sample calculations of the sub code for dual-port
cards are provided in the table below.
NOTE When specifying the name of device files in systems
with dual-port cards, you must use the form
x25_npx
where n represents the card number (0 to 15, and the
first card must be zero), the letter p is a place holder
(for port), and x represents the interface (port) number
(1 or 2).
pri Specifies the logging priority level. Collects messages
from the level equal to or less than the value given by
pri. Values 1 to 6 are allowed for X.25 level 3, 1 to 4 for
level 2, and 1 to 5 for IP over X.25.
Table 7-6 Dual-port Subnet Interface Codes
Interface Calculation
(hexadecimal)
Sub code
(decimal)
x25_0p1, x25_0p2 7030 + 0 = 7030 28720
x25_1p1, x25_1p2 7030 + 1 = 7031 28721
x25_2p1, x25_2p2 7030 + 2 = 7032 28725
x25_5p1, x25_5p2 7030 + 5 = 7035 28725
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