NEC Univerge SV9100 Manual page 519

10-32
If communication server database is set up as follows, System ID 4 becomes the
new Primary System.
System ID
Program 51-01-01
1
2
3
4
Required Programs:
51-01-01 : NetLink System Settings - NetLink System ID

This is the ID number (0 = Disabled, 1-50) that identifies each SV9100 in the
NetLink network. Each SV9100 must be a unique number in the network. When
this option is set to 0, NetLink is disabled.
 The SV9100 must be reset when changing this option.
51-01-02 : NetLink System Settings – Primary Candidate Order

When the Primary SV9100 is turned off or disconnected from the network, this
value (1~50) is used to select the new Primary SV9100 with the Fail-Over
feature. The smaller the number, the higher the priority for the SV9100. When
the value for two SV9100s is the same, lower NetLink System ID (51-01-01) is
selected as the Primary SV9100.
51-03-01 : NetLink Internet Protocol Address List Setting – Internet Protocol

Address List
The communications server sets the Primary SV9100 using this list. When no
Primary SV9100 is seen or Fail-Over occurs, the Node List is used to establish
a new link. This setting is necessary when Program 51-01-03 is set to 0 or
Program 51-05-02 is other than 0.
Enter IP address for any communications server included in the network
(especially the Primary SV9100). After the communications server connects to
the Primary SV9100, this setting is updated by the Primary SV9100 when
Program 51-13-01 is enabled. This allows any new or changed SV9100s to be
added automatically.
An IP address cannot be defined more than once.
- OR -
51-01-03 : NetLink System Settings – Secondary System

The link between SV9100s is established based on this setting (0, 1). When
enabled, the SV9100 connects with the top priority Primary SV9100 (address
set in Program 51-04-01). If the SV9100 is not found during the defined time
(Program 51-05-02), the Fail-Over feature of the SV9100 searches for the
Primary SV9100 as if this option were set to 0.
The link between SV9100s is dynamically established based on the node list set
in Program 51-03-01. The Primary SV9100 is selected in the order in which the
SV9100s wake up.
Issue 2.0
Primary Candidate Order
Program 51-01-02
30
30
30
1
SV9100 NetLink