13. Troubleshooting
13-72
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Protocols
The following protocol information is available: IP (Internet Protocol) statistical information, ICMP
(Internet Control Message Protocol) statistical information, TCP (Transmission Control Protocol)
statistical information, and UDP (User Datagram Protocol) statistical information.
From the Display Status of Network window, click the
Protocol
tab, and then click the
Refresh
button.
- IP (Internet Protocol) statistical information
Protocol statistics for the IP layer are displayed. (Statistical values are the total values for both
channels.)
Display example
ip:
0 total packets received
...(a)
0 errors in IP headers
...(b)
0 invalid IP address
...(c)
0 packets forwarded
...(d)
0 unknown (or unsupported) protocol
...(e)
0 input packets discarded
...(f)
0 in delivered
...(g)
0 out requests
...(h)
0 output packets discarded
...(i)
0 packets discarded because no route
...(j)
0 fragments received
...(k)
0 packets successfully reassembled
...(l)
0 failures detected by the IP reassembly algorithm ...(m)
0 packets fragmented
...(n)
0 packets discard for they could not be fragmented
...(o)
0 fragments have been generated
...(p)
0 routing entries were discarded
...(q)
(a) Total number of received IP packets
(b) Total number of discarded packets due to IP header errors
(c) Total number of discarded packets due to incorrect destination addresses
(d) Total number of forwarded packets
(e) Total number of discarded packets due to unknown or unsupported protocols
(f) Total number of discarded receive packets due to buffer overflows or other reasons
(g) Total number of received packets passed to upper protocols
(h) Total number of packets requested by upper protocols to be transmitted (excluding (d))
(i) Total number of discarded transmit packets due to buffer overflows or other reasons
(j) Total number of discarded packets due to lack of routing information for the destination addresses
(k) Total number of received fragments
(l) Total number of successfully reassembled fragments
(m) Total number of failures detected during reassembly of fragments
(n) Total number of successfully fragmented packets
(o) Total number of packets that required fragmentation but were discarded because fragmentation failed
(p) Total number of created fragments
(q) Total number of discarded routing entries
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