OSI Troubleshooting Guide, May 1997

Chapter 3 77

Using OSI and OTS Tools

OSI Diagnostics

NOTE An entity must be running on the remote node, capable of receiving (or

initiating) a session or transport level connection. For the HP node,

osidiag provides the capability to both establish and receive the

connection. However, some vendors may not have exposed access to this

layer or the functionality provided by osidiag. In that case, the test

desired may have to be run manually (without osidiag).

With osidiag, you can automatically start tracing and logging while

running diagnostic tests at a speciﬁed layer of the stack. By designating

a “Result File,” you can store a duplicate of the information displayed

while the test case is running. This ﬁle can be useful in relaying problem

information if consulting help is requested. For more information on

osidiag, see the online manpage.

Session Provides veriﬁcation of HP’s ability to establish or

receive connections at the session layer. Data,

expedited data, and some of the activity

management primitives may also be sent on this

connection.

Transport Provides veriﬁcation of HP’s ability to establish or

receive connections at the transport layer. Data,

and expedited data may also be sent on this

connection. Please read that follows this table.

X.25 Allows an X.25 connection to be established and

brought down verifying layer 3 connectivity with

the remote node. Card status and statistical

information can also be reported.

LAN (802.3/

FDDI)

Uses the 802.3 Test Frames to determine if there is

layer 2 connectivity. Card status may also be

reported.

Component Test