Switch-Over Phases; Switching Module Configuration Database - 3Com CoreBuilder 7000 Operation Manual

Switch-over Phases

Switching Module
Configuration
Database
Switch-over is carried out in three phases:


Resetting and uploading the software to the 4-port and 8-port
modules.


Initializing 4-port and 8-port modules.


Resetting and initializing the 7X modules.
During the switch-over, the redundant switching module reboots itself
and comes up as the active one. A temporary dropping of all connections
occurs during the switch-over. The connections are re-established after
the switch-over process is complete. Switch-over time is dependent on
the chassis configuration. Typical switch-over time is 2.5 minutes but may
take longer.
Each switching module contains a configuration database where the
switch configuration data is stored. For the redundant switching module
to be ready to assume the role of the active switch, its configuration
database is automatically updated from the active switch. This occurs in
the following situations:


When the switch is booted.


When the switch configuration is changed.
Not all of the configuration data is transferred from the active to the
redundant switch. Data that is not transferred must be updated manually.
The following table presents data which is transferred and data which
must be updated manually.
Table 50 Updating Configuration Database
Data Transferred from Active to
Redundant Switch
CoreBuilder 7000 IP address
NMS IP address
Default gateway IP address
LECS state
LECS order list database (SW Ver. 3.50
and up)
LES state
CoreBuilder 7000 network prefix
Up to Version 4.0 Features
.
Data to be Updated Manually in
Redundant Switch
LECS topology database (include: LES list
and addresses, ELAN names, connection
type)
Static ATM addresses
PVC configurations, UNI version, UNI
profile, signaling
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