Digi PortServer II, User Manual

Page: 216 / 277

Page 196 Troubleshooting 90030500B
Interpretation of statistics
The following screen is an example of a statistics screen. These are IP statistics
obtained from a root level session:
#> info ip
Network statistics collected over last 34 minute(s).
ipInHdrErrors : 0 ipInAddrErrors : 0
ipOutNoRoutes : 0 ipForwDatagram : 0
ipOutRequests : 298 ipInReceives : 657
ipFragCreates : 0 ipFragOKs : 0
ipReasmFails : 0 ipReasmOKs : 0
ipInDiscards : 0 ipInUnknownProtos : 0
Details of how to interpret the information displayed in response to the
info
com-
mand is given below.
IP Statistics
The following statistics are displayed if you enter
info ip
.
ipInHdrErrors
The number of incoming datagrams that were discarded due to errors in their IP head-
ers. Errors that cause a datagram to be discarded include bad checksums, version num-
ber mismatch, other format errors, time-to-live exceeded, and errors discovered in
processing the IP options. In a correctly configured network, this number should be
zero or near to zero.
ipInAddrErrors
The number of incoming datagrams that were discarded because the IP address in the
IP header's destination field was not a valid address to be received at PortServer II’s
network. This count includes invalid addresses (e.g., 0.0.0.0) and addresses of unsup-
ported Classes (e.g., Class E). In a correctly configured network, this number should
be zero or near to zero.