Interlogix GE-DSSG-244, Руководство пользователя

Страница: 255 / 412

IFS NS3601-24P/4S GE-DSSG-244 and 244-POE User Manual
253
Figure 4-17-2
Ring Stack topology
„
Back-to-Back Stack
: Two switches interconnected on both stacking ports.
Figure 4-17-3
Back to back Stack topology
Stack
This section provides information for understand stacking architecture, include the below items:
„
Switch IDs
•
Assigning and Swapping Switch IDs
•
Removing a Switch From the Stack
•
Replacing a Switch
•
General Switch ID Assignment Rules
„
Master Election
„
Stack Redundancy
„
Shortest Path Forwarding
4.17.1.1 Switch IDs
The Switch ID (1-16) assigned to a IFS Switch.
„
Assigning and Swapping Switch IDs
When a switch is added to the stack, a Switch ID is automatically assigned to the switch. The automatic SID assignment can be
modified by choosing a different Switch ID on the Stack Configuration page. This method allows Switch IDs to be assigned so that
it is easier for the user to remember the ID of each switch.
The Switch IDs of two switches can be swapped by simply interchanging the values in the Switch ID column.
Changing Switch IDs does not result in any interruption of the stack operation.
„
Removing a Switch From the Stack
When a switch is removed from the stack, the configuration for the switch is preserved, and the switch still appears on the Stack
Configuration page. If the configuration of the switch is not to be transferred to another switch, then the configuration may be
deleted by choosing Delete, followed by "Save".
„
Replacing a Switch
If a switch is to be replaced with another switch (for example, replacing failing hardware), the following procedure must be used to
assign the configuration of the failing switch to the new hardware:
1. Remove the failing switch from the stack. For example, assume that the failing switch had Switch ID 3.
2. Insert the new switch into the stack. The new switch is assigned an unused Switch ID.
3. To remove the automatic switch ID assignment, choose "Delete", followed by "Save". The new switch is then shown
with Switch ID set to "-".
4. To assign the configuration of Switch ID 3 to the new hardware, simply choose 3 in the Switch ID column and click
"Save".
5. The new hardware has now taken over the configuration of the failing hardware.
„
General Switch ID Assignment Rules
When assigning Switch IDs to the devices in the stack, you must note the following:
1. Switches with assigned IDs can be changed to use any other switch ID (possibly by swapping Switch ID with another
active switch).
2. When swapping two Switch IDs, the devices will retain their (own) configuration, except for the Switch ID.
3. Switches without an assigned Switch ID can only be assigned to any unused ID.
4. When assigning a Switch ID of an inactive switch to a new switch, the new switch will inherit the former's configuration