The Address Resolution Protocol (ARP) Configuration screen
(#111) in Figure 5-7 “Address Resolution Protocol (ARP)
Configuration Screen” is displayed when you press
the [Go To ARP] function key at the Protocol configuration screen (Figure 5-4 “Protocol Configuration Screen”). It is also displayed when you type the path
name:
@NETXPORT.NI.NIname.PROTOCOL.ARP
in the command window of any screen and press the [Enter] key, where NIname is a configured
LAN NI.
This screen allows you to configure the information required
for the address resolution protocol (ARP). The ARP protocol exists
on an Ethernet LAN network to provide a means of exchanging addressing information
between Ethernet nodes. With the concurrent configuration of IEEE
802.3 and Ethernet, both the probe and ARP protocols broadcast requests
to all nodes on the LAN to resolve the LAN station address of a
given remote node.
Press the [Save Data] function key to transfer the data displayed on the screen
to the configuration file you are creating or modifying. Verify that
the data record has been created by checking that the Data flag
is set to Y.
Fields
- Retransmission maximum
This is the maximum number of times that an ARP request
packet will be retransmitted. If an ARP reply packet for this request
is not received after this number of retransmissions, the attempted
address resolution is considered to have failed. This value is bound
closely to the retransmission timeout value as described. Taken together,
they represent the total time to report an address resolution failure.
In general, the value of this field should be kept low.
Default value: 2
Range: 1-10
- Retransmission timeout (seconds)
This is the time interval (in seconds) between ARP retransmissions.
The value should be set large enough to avoid retransmissions in
a temporarily overloaded environment, yet the value should be small
enough to receive a timely failure report when a failure is inevitable.
Default value: 1
Range: 1-10
Printable version
