TP-Link T3700G-28TQ T3700G-28TQ V1 UG - Page 49

Port Number Format, Configuration Files Application Rules, Stack Maintenance

Page 49 highlights

 Port Number Format: The format of port number should be Unit Number/Slot Number/Port Number. Among them: (1)Unit Number: The default unit number of the switch is 1. If a device has joined stack system, the unit number which the device possesses in the stack system will be kept using as its unit number after the device leaves the stack system. (2)Slot Number: Indicates the number of the slot the interface card is in. For T3700G-28TQ, the front panel ports belong to slot 0. Slot number starting from 1 each represents an interface card slot. (3)Physical Port Number: The physical port number on the switch which can be obtained through the front panel of the switch. For instance: Port number 2/0/3 indicates the physical port3 on the switch whose unit number is 2.  Configuration Files Application Rules: It includes global configuration and interface configuration two parts. (1)The global configurations of all stack members are the same. Besides, each member device keeps pace with the global configuration of the master device which enables the stack system to work just like a single entity in the network. The stack system adopts the following methods to ensure the synchronization of global configuration files: When the stack initializes, the master device will compare the configuration files of each stack member and reconfigure the device whose global configuration is different from its own, so as to ensure the global configuration of the stack members are exactly the same. When the stack is work normally, any global configuration of users will be recorded to the current configuration files of master and then be synchronized to the other members in the stack. (2)Each stack member only saves the configuration of its own ports. Even when user sets the configuration for all ports, the configuration will also be saved and implemented only on the related stack member which the ports belong to.  Stack Maintenance Stack maintenance mainly functions to monitor the join and leave of member devices, collect the new topology at any times and maintain the current topology. When the stack is operating normally, packets are transmitted constantly between stack members. The switch can quickly judge the link status of the stack port via monitoring the response of the packets. When the switch detects the link status changes, it will recollect system topology and update topology database to ensure the normal operation of the stack. The events that will change the link status of the stack port which thus affecting the system topology include: stack member failure or leave, new member's coming, link failure or failure recovery, etc. When the master switch fails, the stack system elects a new master from the remaining members to succeed the previous master. 38

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Port Number Format:
The format of port number should be Unit Number/Slot Number/Port Number. Among
them:
1
Unit Number: The default unit number of the switch is 1. If a device has joined stack
system, the unit number which the device possesses in the stack system will be kept
using as its unit number after the device leaves the stack system.
2
Slot Number: Indicates the number of the slot the interface card is in. For
T3700G-28TQ, the front panel ports belong to slot 0. Slot number starting from 1
each represents an interface card slot.
3
Physical Port Number: The physical port number on the switch which can be
obtained through the front panel of the switch.
For instance: Port number 2/0/3 indicates the physical port3 on the switch whose unit
number is 2.
Configuration Files Application Rules:
It includes global configuration and interface
configuration two parts.
1
The global configurations of all stack members are the same. Besides, each member
device keeps pace with the global configuration of the master device which enables
the stack system to work just like a single entity in the network. The stack system
adopts the following methods to ensure the synchronization of global configuration
files:
When the stack initializes, the master device will compare the configuration files of
each stack member and reconfigure the device whose global configuration is
different from its own, so as to ensure the global configuration of the stack members
are exactly the same.
When the stack is work normally, any global configuration of users will be recorded
to the current configuration files of master and then be synchronized to the other
members in the stack.
2
Each stack member only saves the configuration of its own ports. Even when user
sets the configuration for all ports, the configuration will also be saved and
implemented only on the related stack member which the ports belong to.
Stack Maintenance
Stack maintenance mainly functions to monitor the join and leave of member devices,
collect the new topology at any times and maintain the current topology.
When the stack is operating normally, packets are transmitted constantly between stack
members. The switch can quickly judge the link status of the stack port via monitoring the
response of the packets. When the switch detects the link status changes, it will recollect
system topology and update topology database to ensure the normal operation of the
stack.
The events that will change the link status of the stack port which thus affecting the system
topology include: stack member failure or leave, new member's coming, link failure or
failure recovery, etc.
When the master switch fails, the stack system elects a new master from the remaining
members to succeed the previous master.
38