ADDER Infinity User Manual page 17

Dashboard > settings > servers
This page is used to configure redundant operation for the A.I.M. servers.
It is now possible to place two A.I.M. boxes on the same subnet. One A.I.M. box is the
Primary (or Master) the other is the secondary (or Slave). If the Primary server fails for
any particular reason then the Secondary will take over until the Primary is repaired.
This functionality is only possible if the licenses of the both A.I.M. units match. Both A.I.M.
units need to be able to control the same number of endpoints.
Primary Timeout
The time (in seconds) for the Primary server to be unavailable before the secondary
takes over.
quiescent Timeout
The time after which an inactive (Quiescent) server is assumed to have disappeared.
backup check Interval
The interval between the Primary server querying its backups to determine if they are all
on-line.
backup Timeout
The period of time that a backup server can be off line or uncontactable before it is
treated as a failed server.
Require Authentication
If set to 'Yes', then a new, unconfigured A.I.M. server will be unable to join the cluster
automatically; it's behaviour will be to report itself as unconfigured and quiescent, and
request a password. Entering the cluster password will then allow it to join the cluster as
a Backup.
cluster Password
This is the password that is used for A.I.M.-to A.I.M. https queries, if the require
Authentication option is enabled.
Dashboard > settings > Network
This page applies global network parameters to the A.I.M. network.
Require ssl for web
If set to yes, a certificate needs to be downloaded and all connections will then take
place using HTTPS:// connections rather than the default HTTP:// connection types.
IP Pool lower/Upper limits (not shown in multi-subnet mode)
When the A.I.M. server is used in single subnet mode, these two fields are used to define
the range (pool) of IP addresses that the A.I.M. server can automatically assign to new
ALIF endpoint devices. The A.I.M. server contains its own DHCP server with which it
applies the available IP addresses to ALIF endpoint devices.
When used in multi-subnet mode, the internal DHCP server with the A.I.M. is disabled
and instead the A.I.M. server will rely upon an external DHCP server to provide valid IP
address details.
Multicast IP base
The start address for the multicast IP addresses to be used. Multicast IP addresses are
in the range 237.1.1.1 to 239.255.255.255. This setting lets you adjust this range of IP
Multicast addresses. It is important to allow sufficient addresses for your system. For
instance, if the multicast IP address base was set to 239.255.255.252 there would only be
4 multicast addresses available.
Always Multicast
Determines whether multicast addressing is always used for video and audio streams.
This should be used for most installations as it provides the most efficient way to deliver
video and audio to multiple destinations.
separate Device Networks
When this option is set to 'Yes', the ALIF devices within the network will be instructed to
promote a further level of network resilience by treating their copper and fiber/teaming
connections as independent links via separate switches (in conjunction with dual independent
cabling schemes) see the diagram on next page. If one connection route is compromised, the
other will continue unaffected. During normal operation, when both connection routes are
operating, transfer speeds are boosted by the copper and fiber links working in parallel.
The two Ethernet ports of the A.I.M. server can be connected to the two separate
network switches to ensure that A.I.M. control remains in place if one network switch
should become unavailable.
Route of last Resort
This option is appropriate when the A.I.M. server is used in multi-subnet mode. In such
cases it is possible that the A.I.M. server is not directly connected to the same sub-
network as some or all of the ALIF endpoints. Therefore, it will be necessary for the ALIF
unit(s) to communicate back to the A.I.M. server via a gateway device. This option is
used to indicate which interface has the gateway configured.
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