User`s manual

DT-6X60 User's Manual - Platform (Build 2.0)
minute interval allows the console operator time to investigate what the problem is and take
corrective action.
6.9.1 MODULE CONFIGURATION FOR HIGH AVAILABILITY – IPPUBLIC, IPOTHER
Syntax: ippublic <ipaddress>
ipother <ipaddress>
Before configuring a pair of DT-6X60’s for high availability, they should each be configured with
their own ipaddr, and with the appropriate gateway, and submask. The two DT-6X60's must have
the same gateway and must be on the same subnetwork, which is to say the IP addresses of the
two DT-6X60s must have the same network ID.
High availability configuration requires choosing a third IP address, ippublic, in the same network
as the two DT-6X60's. This public address is the one to be advertised to all other network elements
that might be configured to interoperate with this DT-6X60 pair. High availability is enabled by
configuring each DT-6X60 with both ipother (the ipaddr of the other DT-6X60) and ippublic. Each
DT-6X60 must then be rebooted to enter high availability mode.
If it is necessary to move the DT-6X60 pair to a different subnetwork, first remove the configuration
for redundancy, setting both ippublic and ipother to none, then change the ipaddrs of both DT-
6X60s (see also gateway in section 6.4.4), then reconfigure the ippublic and ipother for the new
subnetwork, then reboot.
Syntax: ippublic none
ipother none
To remove the redundancy configuration for both DT-6X60s, set both ippublic and ipother to
none then reboot:
6.9.2 APPLICATION INSTALLATION AND OPERATIONAL CONFIGURATION
Software installation (install) and assignment of software to instances (app) are performed as
usual on the active DT-6X60. Application and platform software must be individually registered on
both DT-6X60s. The following describes how those operations are managed on the standby.
6.9.2.1 A
PPLICATION I NSTALLATION - STBYUPD
The recommended procedure for installing new application or platform software is to use the
install command on both the active and standby DT-6X60. It doesn't matter which DT-6X60 is
updated first. As with the standalone DT-6X60, when performing install on the active, the affected
instances are automatically restarted.
As an alternative, the standby may also receive newly installed software from the active DT-6X60
by using the stbyupd command at the standby console:
Syntax: stbyupd os | sw
The sw option updates application software. If the active has been updated with platform software,
stbyupd os should be performed on the standby followed by stbyupd sw. In order for the
stbyupd sw or os commands to work properly, the current time and date must be set properly
using date and timezone [6.3.6] on the active controller. If it is not convenient or feasible to check
and maintain the current time, then it is recommended to use install to keep the standby software
in sync with the active. The release notes for some platform updates may countermand use of
stbyupd os, in which case the normal install procedures should be performed on the standby.
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Following installation or the alternative stbyupd procedure, the software must be registered on
both the standby and the active.