Whether the configuration of an S series fixed switch changes after the switch joins a stack

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After two S series fixed switches set up a stack, they function as one switch on a network, and the configuration of each switch will change. For example:
1. The port number changes according to the stack ID.
2. The stack uses the configuration and MAC address of the master switch. The configuration on the standby switch does not take effect.
3. You need to determine whether to change the management IP address of the stack as required.

Other related questions:
Whether the configuration of an S series fixed switch stack changes after the stack splits
After a stack is set up, all stack member switches function as one switch on a network. The configuration of the stack is the configuration of the master switch, which is synchronized to the standby switch by the master switch. If a fault occurs on the master switch and the master switch restarts, the standby switch does not restart and function as the master switch. That is, the configuration of the stack does not change.

Change stack IDs of S series fixed switches of a stack
To change the stack ID of an S series fixed switch (except the S1700 switch) of a stack, run the stack slot slot-id renumber new-slot-id command. Ensure that the new stack ID is unique in the stack. After changing the stack ID, restart the switch to make the setting take effect.

Configure a switch as a slave switch in a stack of S series fixed switches
When more than two S series fixed switches set up a stack, one member switch is elected as the master switch, and one as the standby switch. The rest member switches function as slave switches, which are also called cold standby switches. A member switch function as a cold standby switch only when the stack elects other two member switches as the master and standby switches. You can configure using one of the following methods: 1. (Recommended) If you can control the switch startup, start the two switches to make them function as the master and standby switches and then start the switches that function as slave switches. 2. Configure a lower priority for a switch to reduce the possibility that the switch is elected as the master or standby switch. 3. If a stack has been set up, you can restart the master or standby switch. After the switch restarts, it rejoins the stack as a slave switch.

After a stack of S series fixed switches is set up, a stack member switch restarts. Does the interface number of the switch change
If an S series fixed switch restarts after it has joined a stack, its interface number does not change. The restart does not change any configuration on the switch.

Advantages of stacks of S series fixed switches
Stacking technology provides high network reliability and forwarding performance while simplifying network management. It has the following advantages: 1. High reliability: Member switches in a stack work in redundancy mode. Link redundancy can also be implemented between member switches through inter-device link aggregation. 2. High scalability: You can increase ports, bandwidth, and processing capacity of a stack by simply adding member switches to the stack. Member switches can join or leave the stack without affecting other member switches. New switches automatically synchronize the configuration file and system software version with the master switch. 3. Simpler configuration and management: You can log in to a stack from any member switch to manage and configure all the member switches in the stack. In addition, complicated Layer 2 ring protection protocols or Layer 3 protection switching protocols are not required after switches set up a stack; therefore, the network configuration is much simpler.

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