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lwip/stats.h: Add some comments to MIB2 variables to explain correct usage a bit

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Dirk Ziegelmeier 2016-02-23 12:08:31 +01:00
parent d121ea84d0
commit 481d350bf3
1 changed files with 31 additions and 0 deletions
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31
src/include/lwip/stats.h
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@ -169,16 +169,47 @@ struct stats_mib2 {
};
struct stats_mib2_netif_ctrs {
/* The total number of octets received on the interface, including framing characters */
u32_t ifinoctets;
/* The number of packets, delivered by this sub-layer to a higher (sub-)layer, which were
* not addressed to a multicast or broadcast address at this sub-layer */
u32_t ifinucastpkts;
/* The number of packets, delivered by this sub-layer to a higher (sub-)layer, which were
* addressed to a multicast or broadcast address at this sub-layer */
u32_t ifinnucastpkts;
/* The number of inbound packets which were chosen to be discarded even though no errors had
* been detected to prevent their being deliverable to a higher-layer protocol. One possible
* reason for discarding such a packet could be to free up buffer space */
u32_t ifindiscards;
/* For packet-oriented interfaces, the number of inbound packets that contained errors
* preventing them from being deliverable to a higher-layer protocol. For character-
* oriented or fixed-length interfaces, the number of inbound transmission units that
* contained errors preventing them from being deliverable to a higher-layer protocol. */
u32_t ifinerrors;
/* For packet-oriented interfaces, the number of packets received via the interface which
* were discarded because of an unknown or unsupported protocol. For character-oriented
* or fixed-length interfaces that support protocol multiplexing the number of transmission
* units received via the interface which were discarded because of an unknown or unsupported
* protocol. For any interface that does not support protocol multiplexing, this counter will
* always be 0 */
u32_t ifinunknownprotos;
/* The total number of octets transmitted out of the interface, including framing characters. */
u32_t ifoutoctets;
/* The total number of packets that higher-level protocols requested be transmitted, and
* which were not addressed to a multicast or broadcast address at this sub-layer, including
* those that were discarded or not sent. */
u32_t ifoutucastpkts;
/* The total number of packets that higher-level protocols requested be transmitted, and which
* were addressed to a multicast or broadcast address at this sub-layer, including
* those that were discarded or not sent. */
u32_t ifoutnucastpkts;
/* The number of outbound packets which were chosen to be discarded even though no errors had
* been detected to prevent their being transmitted. One possible reason for discarding
* such a packet could be to free up buffer space. */
u32_t ifoutdiscards;
/* For packet-oriented interfaces, the number of outbound packets that could not be transmitted
* because of errors. For character-oriented or fixed-length interfaces, the number of outbound
* transmission units that could not be transmitted because of errors. */
u32_t ifouterrors;
};