174 Ethernet module User’s Manual
Chapter 7 RAS Information
7
(c) MIB information: IP protocol information
Reads out 17 words of data using RAS information readout.
IP datagram: The IP header and IP data sections of a packet (see Figure 7-1).
IP fragment: Items that are divided into multiple IP datagrams when sending over 1500
bytes of data.
Reassemble: Restoring data to its original form from fragmented IP datagrams.
Table 7-4 MIB_IP
Symbol Description
MIB_IP [0] This flag indicates whether the IP gateway is operating or not.
MIB_IP [1] Default TTL (Time to Live) of the IP packet.
MIB_IP [2] Total number of IP datagrams received form LAN controller interface.
MIB_IP [3] Number of IP datagrams discarded due to format errors.
MIB_IP [4] Number of IP datagrams discarded due to misdelivery
MIB_IP [5] Number of IP datagrams transferred.
MIB_IP [6] Number of IP datagrams sent to an undefined protocol.
MIB_IP [7] Number of IP datagrams transferred upstream
MIB_IP [8] Number of IP datagrams routed from upstream.
MIB_IP [9] Number of datagrams discarded because there was no route.
MIB_IP [10] Maximum number of seconds while the received fragment is retained and
waiting for reassemble.
MIB_IP [11] Number of received IP datagrams for which reassemble is necessary.
MIB_IP [12] Number of IP datagrams that were reassembled successfully.
MIB_IP [13] Number of IP datagrams for which fragmentation failed.
MIB_IP [14] Number of IP datagrams that were fragmented successfully.
MIB_IP [15] Number of IP datagrams for which fragmentation failed and discarded.
MIB_IP [16] Number of created IP fragments
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