Use the info command to:
Display device/terminal server network statistics tables
Clear network statistics tables
The statistics in network statistics tables are those gathered since the tables were last cleared. Normal users can view network statistics tables. Administrator (root) privileges are required to clear them.
Enter the info command as shown below to clear network statistics tables:
info clear
Enter the info command as shown below to display statistics for IP, ICMP, TCP, UDP, Ethernet and Serial.
info protocol_table
info interface_table
|
Command Field |
Description |
|
|
clear |
Clears all network statistics tables. |
|
|
protocol_table |
Specifies one of the following tables: |
|
|
Table |
Contents |
|
|
icmp |
ICMP statistics |
|
|
ip |
IP statistics |
|
|
tcp |
TCP statistics |
|
|
udp |
UDP statistics |
|
|
interface_table |
Specifies one of the following tables: |
|
|
Table |
Contents |
|
|
ether |
Statistics collected on the Ethernet interface (PortServer TS 8/16) |
|
|
network |
Statistics collected on the Ethernet interface (Digi One RealPort, PortServer TS 2/4) |
|
| serial[:range] | Statistics collected on the serial ports. If no range is specified, the number of received bytes and transmitted bytes is displayed for all ports. If a range is specified, detailed information is displayed for each port in range. This option is not supported on Digi One RealPort or PortServer TS 2/4. | |
In this example, the info command displays the IP table.
info ip
In this example, the info command clears all network statistics tables.
info clear
This section describes the fields displayed when you issue the info icmp command.
|
icmpInMsgs |
ICMP messages received, including those counted by icmpInErrors |
|
icmpInEchos |
ICMP Echo Request messages received |
|
icmpInEchoRp |
ICMP Echo Reply messages received |
|
icmpInDstUnrec |
ICMP Destination Unreachable messages received |
|
icmpInRedirect |
ICMP Redirect messages received |
|
icmpInParmProb |
ICMP Parameter Problem messages received |
|
icmpInTimeExcd |
ICMP Time Exceeded messages received |
|
icmpInSrcQuenc |
ICMP Source Quench messages received |
|
icmpInTimest |
ICMP Timestamp Request messages received |
|
icmpInTimestRp |
ICMP Timestamp Reply messages received |
|
icmpInAdrMsk |
ICMP Address Mask Request messages received |
|
icmpInAdrMskRp |
ICMP Address Mask Reply messages received |
|
icmpInErrors |
ICMP messages received with ICMP-specific errors (for example, bad ICMP checksums or length) |
|
icmpOutMsgs |
ICMP messages that PortServer attempted to send, including those counted by icmpOutErrors |
|
icmpOutEchoRp |
ICMP Echo Reply messages sent |
|
icmpOutEchos |
ICMP Echo Request messages sent |
|
icmpOutDstUnre |
ICMP Destination Unreachable messages sent |
|
icmpOutRedirec |
ICMP Redirect messages sent |
|
icmpOutParmPro |
ICMP Parameter Problem messages sent |
|
icmpOutTimeExc |
ICMP Time Exceeded messages sent |
|
icmpOutSrcQuen |
ICMP Source Quench messages sent |
|
icmpOutTimestR |
ICMP Timestamp Reply messages sent |
|
icmpOutTimest |
ICMP Timestamp (request) messages sent |
|
icmpOutAdrMskR |
TICMP Address Mask Reply messages sent |
|
icmpOutAdrMsk |
ICMP Address Mask Request messages sent |
This section describes the fields displayed when you issue the info ip command.
|
ipInReceives |
Incoming datagrams, including any received in error |
|
ipInHdrErrors |
Incoming datagrams discarded due to IP header errors. Causes include bad checksums, version number mismatches, other format errors, time-to-live values exceeded, and errors discovered in processing IP options. Correctly configured networks produce few such errors. |
|
ipInAddrErrors |
Incoming datagrams discarded because the address in the IP header destination field was not valid for the PortServer’s network. This includes addresses of unsupported classes (Class E, for example). Correctly configured networks produce few such errors. |
|
ipInUnknownProtos |
Datagrams received successfully but discarded because of an unknown or unsupported protocol |
|
ipInDiscards |
Good incoming datagrams discarded for lack of resources, such as buffer space, including those discarded while awaiting reassembly |
|
ipReasmOKs |
IP datagrams successfully reassembled |
|
ipReasmFails |
Failures detected by the IP re-assembly algorithm. This is may not be a count of all discarded IP fragments because some algorithms (notably the algorithm in RFC 815) lose count by combining fragments as they are received. |
|
ipForwDatagram |
Incoming datagrams destined for another subnetwork to which the device/terminal server could not find a route |
|
ipOutNoRoutes |
Outgoing datagrams discarded because no route could be found to their destination. This includes datagrams:
Correctly configured networks produce few such errors. |
|
ipOutRequests |
Datagrams that local IP user protocols (including ICMP) supplied to IP for transmission, not including those counted in ipForwDatagrams |
|
ipOutDiscards |
Good outgoing datagrams discarded for lack of resources, including those counted in ipForwDatagrams |
|
ipFragCreates |
Datagram fragments generated by the device/terminal server |
|
ipFragOKs |
Datagrams successfully fragmented |
This section describes the fields displayed when you issue the info ether command. This command reports activity on the Ethernet interface. Not all counters are displayed for all Digi device/terminal server products.
|
ifInOctets |
Octets received, including framing characters |
|
ifInUcastPkts |
Subnetwork unicast packets delivered to higher-layer protocols |
|
ifInNUcastPkts |
Non-unicast (for example, subnetwork-broadcast or subnetwork multicast) packets delivered to a higher-layer |
|
ifInDiscards |
Inbound packets discarded, even though no error was detected that would prevent delivery to a higher-layer |
|
ifInErrors |
Inbound packets with errors that prevent delivery to a higher-layer |
|
ifUnknownProtos |
Inbound packets discarded because of unknown or unsupported protocols |
|
ifOutOctets |
Octets transmitted, including framing characters |
|
ifOutUcastPkts |
Outbound packets using the subnetwork unicast address, including discards |
|
ifOutNUcastPkts |
0utbound packets using a non-unicast (that is, a subnetwork broadcast or subnetwork multicast) address, including discards |
|
ifOutDiscards |
Error-free outbound packets discarded, possibly to free buffer space |
|
ifOutErrors |
Outbound packets not transmitted because of errors |
|
In Total |
Frames received |
|
In IP |
IP protocol frames received |
|
In ARP |
ARP frames received |
|
Out Total |
Frames sent by the device/terminal server |
|
Out IP |
IP frames sent |
|
Out ARP |
ARP frames sent |
|
In Overruns |
Times the Ethernet controller was unable to place a received frame in memory |
|
In Unaligned |
Misaligned frames received |
|
In No Resource |
Incoming frames not processed due to lack of available buffers |
|
In Collision |
Ethernet collisions detected after a destination address was received |
|
In Short Frame |
Short frames received |
|
In Bad CRC |
Frames received with bad CRC |
|
Out No Carrier |
Frames lost when lack of carrier was detected |
|
Out Lost CTS |
Frames lost when ClearToSend was reset |
|
Out DMA Underrun |
Frames lost because transmit buffers were not available |
|
Out Deferred |
Transmissions deferred |
|
Out Collisions |
Ethernet collisions detected after starting a transmission |
This section describes the fields displayed when you issue the info TCP command.
|
tcpInSegs |
Segments received, including those received in error. This includes only segments received on currently established connections. |
|
tcpInErrs |
Segments received in error (for example, bad TCP checksums) |
|
tcpEstabResets |
Times that TCP connections made a direct transition to the CLOSED state from either the ESTABLISHED or CLOSE-WAIT states |
|
tcpPassiveOpen |
Times that TCP connections made a direct transition to the SYN-RCVD state from the LISTEN state |
|
tcpAttemptFail |
Times that TCP connections made a direct transition to the CLOSED state from either the SYN-SENT state or the SYN-RCVD state, plus the times TCP connections made a direct transition to the LISTEN state from the SYN-RCVD state |
|
tcpOutSegs |
Segments sent, including those on current connections. This excludes those containing only retransmitted octets. |
|
tcpRetransSegs |
Segments retransmitted, that is, the number of TCP segments transmitted containing one or more previously transmitted octets |
|
tcpOutRsts |
TCP segments sent containing the RST flag |
|
tcpActiveOpens |
Times TCP connections made a direct transition to the SYN-SENT state from the CLOSED state |
This section describes the fields displayed when you issue the info UDP command.
|
udpInDatagrams |
Datagrams delivered to UDP users |
|
udpInErrors |
Received UDP datagrams that could not be delivered for any reason other than the lack of an application at the destination port |
|
udpNoPorts |
Received UDP datagrams for which there was no application at the destination port |
|
udpOutDatagrams |
UDP datagrams sent |
This section describes the fields displayed when you issue the info serial command.
| sessX rbytes | Number of bytes received in Session #X (where X is 1-9; see the sess option of the set ports command) |
| sessX tbytes | Number of bytes transmitted from Session #X (where X is 1-9; see the sess option of the set ports command) |
| rts_sigchange | Number of transitions of the RTS signal |
| cts_sigchange | Number of transitions of the CTS signal |
| dsr_sigchange | Number of transitions of the DSR signal |
| dcd_sigchange | Number of transitions of the DCD signal |
| dtr_sigchange | Number of transitions of the DTR signal |
| ri_sigchange | Number of transitions of the RI signal |
| norun | Number of overrun errors detected |
| noflow | Number of overflow errors detected |
| nframe | Number of frame errors detected |
| nparity | Number of parity errors detected |
| nbreak | Number of BREAKs received |