etsysTrackedObjectsProbeType
1.3.6.1.4.1.5624.1.2.79.1.2.1.1.4
The type of connection used when contacting the remote service.
icmp(1) - Issues an ICMP echo request and expects an echo reply
from the remote service. Probes of this type determine
the state of the remote service.
udp(2) - Sends a UDP request using either the
etsysTrackedObjectsProbeAcvRequest string or a generic
'\r\n'. If its an ACV request, the system expects
an ACV reply. If its a generic request, no reply is
expected. Probes of this type determine the state of
the remote service.
tcp(3) - Sets up a 3-way handshake with the remote service.
If etsysTrackedObjectsProbeAcvRequest is configured,
that string is sent over the connected socket, and
an ACV reply is expected. If that object is not
configured, then the connection is closed. Probes of
this type determine the state of the remote service.
icmpTs(4) - Issues an ICMP echo request and expects an echo
reply. The echo request contains a timestamp of the
transmit time. The echo reply includes the timestamp
of the received echo request and the transmit
timestamp of the echo reply. Upon receiving the echo
reply, the application adds a final timestamp for the
receive time.
Hosts:
L - Local Host, D - Destination Host
Timestamps:
ETxTs - Echo Request Transmit Timestamp
ERxTs - Echo Request Receive Timestamp
RTxTs - Echo Reply Transmit Timestamp
RRxTs - Echo Reply Receive Timestamp
L ----- Echo Request (ETxTs) --------------> D
L <---- Echo Reply (ETxTs, ERxTs, RTxTs)---- D
L (Adds RRxTs)
Notes:
In order for the echo reply to contain the extra
timestamps, the destinaton host MUST be an Enterasys
device that supports the 'icmpTs' type.
However, it is not a requirement that the destination
host be an Enterasys device, nor does an Enterasys
device have to support the 'icmpTs' type for the probe
to operate correctly. In this situation, the client
applications will have to handle the ERxTs and RTxTs
values being zero.
Probes of this type collect timestamp information for
the client applications. These probes DO NOT determine
the state of the remote service. Additional objects
are found in the etsysTrackedObjectsProbeTsTable.
The value of this object MAY NOT be modified after creating the
row.