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+<!-- Copyright (C) 2003 Red Hat, Inc.                                -->
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+>Changes to eCos sources</TITLE
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+NAME="NET-SNMP-ECOS-CHANGES">Changes to eCos sources</H1
+><P
+>Small changes have been made in three areas:</P
+><P
+></P
+><OL
+TYPE="1"
+><LI
+><P
+>Various hardware-specific ethernet drivers.</P
+></LI
+><LI
+><P
+>The generic ethernet device driver.</P
+></LI
+><LI
+><P
+>The OpenBSD TCP/IP networking package.</P
+></LI
+></OL
+><P
+>These changes were made in order to export information about the driver and
+the network that the SNMP agent must report.  The changes were trivial in
+the case of the network stack, since it was already SNMP-friendly.  The
+generic ethernet device driver was re-organized to have an extensive header
+file and to add a couple of APIs to extract statistics that the
+hardware-specific device drivers keep within themselves.</P
+><P
+>There may be a performance hit for recording that data; disabling
+a config option named something like
+<TT
+CLASS="LITERAL"
+>CYGDBG_DEVS_ETH_xxxx_xxxx_KEEP_STATISTICS</TT
+>
+depending on the specific device driver will prevent that.</P
+><P
+>Not all platform ethernet device drivers export complete SNMP statistical
+information; if the exported information is missing, SNMP will report zero
+values for such data (in the dot3 MIB).</P
+><P
+>The interface chipset has an ID which is an OID; not all the latest greatest
+devices are listed in the abailable database, so new chipsets may need to
+be added to the client MIB, if not defined in those from UCD.</P
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