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icmp_rx.redirect contains the number of ICMP redirect messages
received by interface ip-address. Such messages inform the recipient
of a more optimum IP route.
icmp_rx.ttl contains the number of ICMP time exceeded messages
received by interface ip-address. Such messages are generated when
a datagram’s hop count reaches 0.
icmp_rx.xsum_error contains the number of received ICMP
messages dropped by interface ip-interface because of a faulty
ICMP checksum.
icmp_tx.dest_unreachable contains the number of ICMP
destination unreachable messages transmitted by interface
ip-address. Such messages indicate that the originating node
cannot route or deliver datagrams.
icmp_tx.echo_reply contains the number of ICMP echo reply
messages transmitted by interface ip-address. Such messages test
whether a destination node is reachable.
icmp_tx.frag_error contains the number of ICMP destination
unreachable messages with a Code field of 4 (indicating that a datagram
could not be fragmented) transmitted by interface ip-address. Such
messages indicate that ip-address cannot fragment an IP datagram
longer than 1500 bytes, or that the DF bit (Do Not Fragment) of the IP
datagram was set.
icmp_tx.param_problem contains the number of ICMP parameter
problem messages transmitted by interface ip-address. Such
messages report faulty IP headers.
icmp_tx.redirect contains the number of ICMP redirect messages
transmitted by interface ip-address. Such messages inform the
recipient of a more optimum IP route.
icmp_tx.ttl contains the number of ICMP time exceeded messages
transmitted by interface ip-address. Such messages are generated
when a datagram’s hop count reaches zero.
mask contains the 32-bit subnet mask of interface ip-address
expressed as an unformatted decimal integer.
Management Information Base Variables
ip: IP Information Base
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