Along with other information, the Dial ID Protocol Configuration
screen (#103) provides a means of verifying that the remote node
is the intended remote node and that both local and remote nodes
have proper security access. This screen, shown in Figure 6-6 “Dial ID Protocol Configuration Screen”, is displayed when you press the function
key for [Go To DIAL] at the Protocol Configuration
screen (Figure 6-4 “Protocol Configuration Screen”). It is also
displayed when you type the path name:
@NETXPORT.NI.NIname.PROTOCOL.DIAL
in the Command window of any screen and press the [Enter]
key, where NIname is the configured point-to-point
NI.
Figure 6-6 Dial ID Protocol Configuration Screen
Press the [Save Data] function key to transfer
the data displayed on the screen to the configuration file you are
creating or updating. Verify that the data record has been created
by checking that the Data flag is set to Y.
After the data has been updated, press [Go To SECURITY]
to proceed to the next screen.
Fields
- Maximum retransmissions per packet
(HP modifiable.) This is
the maximum number of times that a dial ID protocol packet will
be retransmitted. If the expected response to a packet is not received
after this number of retransmissions, the connection is closed.
This value is related to the retransmission timeout value
discussed.
Multiplying these values results in the total time that passes
before a failure is reported (an error message is recorded when
the timer expires). HP recommends that you alter this value only
upon the recommendation of your HP representative. The higher the
value, the longer it will take to be notified of a link failure
if one occurs. The dial ID protocol is in use after the physical
and data link levels have been activated and before normal communication
occurs.
Default value: 2
Range: 1-10
- Retransmission timeout (secs)
(HP modifiable.) The retransmission
timeout is the time interval that passes between retransmissions
of a Dial ID protocol packet.
Multiplying the values configured for maximum number of retransmissions
per packet (described above) and retransmission timeout results
in the total time that passes before a failure is reported (an error
message will be recorded). HP recommends that you alter this value
only upon the recommendation of your HP representative. Note that
if the value is set too low, dial connections may fail unnecessarily
when response times are temporarily slowed by transient conditions
such as an abnormally high volume of traffic. The higher the value,
the longer it will take to be notified of a link failure if one
occurs.
Default value: 5
Range: 1-10
- Security on (Y/N)
A Y (Yes) value
in this field indicates that security strings are to be exchanged
and validated between the node being configured and a remote node.
When a dial connection is initiated by a remote node, the
security string sent by the remote node is checked against the list
of valid security strings configured for the dial ID protocol for
this network interface. (See "Related screens").
When a dial connection is initiated by this node, the local dial
ID protocol sends the destination's security string (as
configured on this node) to that node.
If security validation fails, an error message is logged,
where PARM indicates if the failure
was local or remote. (See the NS 3000/iX Error Messages
Reference Manual for a description of any error message
received.)
Related screens:
NETXPORT.NI.NIname.PROTOCOL.DIAL.SECURITY
Security strings valid for this network are configured in
this screen.
NETXPORT.NI.NIname.MAPPING.mapentry
The remote node's security string is configured in
this screen.
Default value: Y
Range: Y or N