TCP Statistics
85
Model 2285 Getting Started Guide
6 • System statistics
•
NEchoReps, OutEchoReps:
Specifies the number of echo replies received or sent. A computer sends an
echo reply in response to receiving an echo request message.
•
InTimestamps, OutTimestamps:
Specifies the number of time-stamp requests received or sent. A time-
stamp request causes the receiving computer to send a time-stamp reply back to the originating computer.
•
InTimestampReps, OutTimestampReps
: Specifies the number of time-stamp replies received or sent. A
computer sends a time-stamp reply in response to receiving a time-stamp request. Routers can use time-
stamp requests and replies to measure the transmission speed of datagrams on a network.
•
InAddrMasks, OutAddrMasks:
Specifies the number of address mask requests received or sent. A computer
sends an address mask request to determine the number of bits in the subnet mask for its local subnet.
•
InAddrMaskReps, OutAddrMaskReps:
Specifies the number of address mask responses received or sent. A
computer sends an address mask response in response to an address mask request.
TCP Statistics
The TCP Statistics screen provides statistical information about packets/connections using a TCP protocol.
Definitions and descriptions of each parameter are described below:
Figure 53. TCP Statistics
•
RtoAlgorithm:
Specifies the retransmission time-out (RTO) algorithm in use. The Retransmission Algo-
rithm can have one of the following values.
-
0: CONSTANT - Constant Time-out
-
1: RSRE - MIL-STD-1778 Appendix B
-
2: VANJ - Van Jacobson’s Algorithm
-
3: OTHER - Other
•
RtoMin:
Specifies the minimum retransmission time-out value in milliseconds.
•
RtoMax:
Specifies the maximum retransmission time-out value in milliseconds.
•
MaxConn:
Specifies the maximum number of connections. If is the maximum number is set to -1, the
maximum number of connections are dynamic.