Along with other protocol information, the Dial ID Protocol Configuration
screen (#103) provides a means of verifying that the remote node is indeed the
intended remote node and that both local and remote nodes have proper security
access. This screen, shown in Figure 10-6 "Dial
ID Protocol Configuration Screen", is displayed when you press the
[Go To DIAL] function key at the Protocol Configuration screen
(Figure 10-4 "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 gateway half NI name.
Figure 10-6 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.
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 link device it is using
is closed. This value is related to the retransmission timeout.
Multiplying these values 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. However, 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: 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. However, 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. (Related
screens, indicates the path name of the screen in which you can
configure security strings.) If security validation fails, an error
message is logged. (Refer to 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.