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ASSA ABLOY Hospitality
66 1100 005-11
5.5 More about finding the server
This appendix describes the process of how the Ethernet module finds the server.
The solution is based on DNS (
domain name system
) as well as on
announcement
broadcast
, which is a proprietary implementation of
zero config
information about the
zero config
IP address range.
Note:
For more information about
setting up DNS entries etc, contact the hotel IT department. A general description of
this cannot be made in this document, since this varies with the type of DNS server
which is used.
There are three challenges when the Ethernet module is connected to the network:
1.
A new Ethernet module must be able to find the server even if it is located on
a separate subnet.
2.
The Ethernet module must be able to locate a backup server in case the
primary server fails. The backup server is assumed to have the latest database
from the primary server.
3.
The above must be fulfilled even if there are multiple Visionline servers on the
same network.
To commission Ethernet modules:
Single server - to commission Ethernet modules with DNS
Multiple servers - to commission Ethernet modules with DNS
To commission Ethernet modules without DNS
To switch to backup server:
5.5.1 To commission Ethernet modules with DNS
If the Ethernet module is located on the same subnet as the server, the Ethernet
module will locate the server using
announcement broadcast
without any need for
manual configuration. However, the normal case is that the server and the Ethernet
module are located on different subnets. The first Ethernet module for each subnet
requires help from the DNS to locate the server.
5.5.1.1 Single server
1.
Add a DNS entry called
timeloxserver
and let its IP address be the address
of the Visionline server to which the new Ethernet module shall connect.
The Ethernet module will then make a DNS query using the name
timeloxserver
and in this way get the IP address of the server.
2.
Connect the Ethernet module to Ethernet and wait for it to appear in the
SysMon
Online Network
tree.