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Mitel NuPoint Messenger Technical Documentation - Release 7.0
icmpOutRedirects
(Redirected Messages)
icmpOutEchos (Echo
Request Messages)
icmpOutEchoReps
(Echo Reply Messages)
Close (button)
This field counts the total number of ICMP Redirect
messages sent. When a system sends a datagram to a
wrong local router, the router sends an ICMP Redirect
message back to the source. The Redirect message
contains the correct next-hop data for that destination. Note
that routers issue redirects but hosts do not. Hence, the
value in this field is always zero unless the node in question
is a router.
This field counts the total number of ICMP Echo Request
messages sent.
This field counts the total number of ICMP Echo Reply
messages sent.
Clicking on this button returns you to the MIB-II group
selection screen (Figure 5-33).
MIB-II: TCP (Transmission Control Protocol) Group
GENERAL. The two screens shown in Figure 5-45 and Figure 5-46 display the group of MIB-II
objects involved with the implementation and operation of TCP at a selected node. The objects in
the TCP group contain information about TCP operation, such as transmission and
retransmission data, selected timeout-algorithm, datagram statistics, and connection-table data.
The screen shown in Figure 5-45 includes two tabs that give you access to the following two TCP
information groups:
•
TCP Information. The information displayed by clicking the first (left) tab in Figure 5-45
describes the basic characteristics of sent and received TCP information.
•
TCP Connection Table. Click on the second (right) tab to display the MIB objects containing
TCP connection-table information, as shown in Figure 5-46.
Figure 5-45
MIB-II: TCP Group: TCP Information Screen
MIB-II: TCP BASIC INFORMATION. Table 5-37 provides basic information describing the
contents of the MIB-II TCP basic-information screen shown in Figure 5-45.
Table 5-37
MIB-II: TCP Group: Basic TCP Data
MIB-II Object
Description/Definition/Values
tcpRtoAlgorithm
This field tells you the type of algorithm selected for
(Algorithm to determine
computing the retransmission timeout (RTO) value used
timeout value when
when retransmitting unacknowledged octets.
retransmitting
Possible values are:
unacknowledged octets)
(1) other. None of the following three values.
(2) constant. Constant retransmission timeout value.
(3) rsre. Per MIL-STD-1778, Appendix B (RFC-793).
(4) vanj. Uses van Jacobson’s algorithm.
tcpRtoMin
This is the minimum time (in milliseconds) that the present
(Minimum Retransmission TCP implementation permits for the retransmission timeout
Timeout (milliseconds))
(RTO) period. Note that the functional meaning of this value
is dependent upon the retransmission-timeout algorithm
used. See tcpRtoAlgorithm (above).
©Copyright 2002, Mitel Networks Corporation
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