Tcp quiet time, Default router address, Dns primary name server – Visara LINCS Configuration User Manual

Page 87: Dns secondary name server, Dns/ping response time, Dns default domain, Snmp trap ip address, Snmp read authentication string

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Chapter 3. Line Options

707023-003

TCP Quiet Time

TCP requires 4.5 minutes of recovery time after a device crashes or for a reboot, but LINCS’
IML time varies according to configuration and hardware installed. This field allows you to
define extra time beyond the normal boot time before TCP connections can be attempted.
Default value is 0. (As soon as LINCS has IMLed, TCP can attempt connections.)

Default Router Address

Enter the address of the router on the network. Obtain this value from the system administrator.
This router address must be on the same physical subnet as the IP address assigned to this interface.

DNS Primary Name Server

The Domain Name System requires at least one name server address. The name server resolves
the address of the remote machine, by using its domain name database, and the databases on
other name servers. Entering an address enables the Domain Name System feature that lets a
TCP/IP user enter a DNS name for the TCP/IP host instead of the IP address. Enter zeros in
this field to disable the feature. To complete information about the Domain Name system,
you must also assign Dynamic IP Host Class Access in the Resource Authorization Matrix of
the Device Profile Panel for displays.

DNS Secondary Name Server

Enter a value if you want to enable a secondary domain name server to function as a backup to
the primary domain name server. If the user makes two queries to the primary server and they
are not answered, LINCS will direct up to two queries to the secondary domain name server.

DNS/Ping Response Time

This timer, given in tenths of seconds, determines the amount of time that is allowed for a
DNS or a Ping request to be answered before determining that a timeout has occurred.

DNS Default Domain

Use this field to specify an optional default Domain Name system label. The label must not
exceed 63 characters. The starting and end characters must be alphanumeric, and the remaining
characters must be alphanumeric characters or hyphens.

The default domain will be appended to any queries that are not fully expressed. For example,
sulu is translated to sulu.visara.com, if visara.com is the default domain.

SNMP Trap IP Address

This Destination IP Address defines where to send SNMP traps generated by LINCS. If the
IP Address is undefined, or defined as all 0’s, traps are not generated. If non-zero, traps are
generated for link up, link down, cold start, and authentication errors.

SNMP Read Authentication String

This 16-character string is required by the Network Management Station (the SNMP client)
to access MIB variables in LINCS.

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