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QSW-8200-28T-AC
Команды для mstp Страница: 8

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QSW-8200-28T-AC
Команды для mstp Страница: 8

Qtech QSW-8200-28T-AC — настройка команд MSTP: Руководство пользователя [8/23]

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Qtech QSW-8200-52T-AC-DC Команды для mstp онлайн [8/23] 481624

User Manual

Chapter 1. Commands for MSTP 8

www.qtech.ru

 Note: Because the authentication string is related to instance ID and VLAN ID, the

command may cause recognizing the equipment that with different instance and VLAN

relation as in the same region. Before the command is executed, make sure that

instance and VLAN relation is accord for all the equipment. If there are more than one

equipment connected, all the connected ports should execute this command.

 Example: Configure the authentication string of partner port.

 Switch(config)#interface ethernet 1/0/2

 Switch(Config-If-Ethernet1/0/2)#spanning-tree digest-snooping

 Switch(Config-If-Ethernet1/0/2)#

1.1.11 spanning-tree format

 Command: spanning-tree format {standard | privacy | auto}

 no spanning-tree format

 Function: Configure the format of the port packet so to be interactive with products of

other companies. The no command restores the default format.

 Parameter: standard: The packet format provided by IEEE

 privacy: Privacy packet format, which is compatible with CISCO equipments.

 auto: Auto identified packet format, which is determined by checking the format of the

received packets.

 Command Mode: Port Mode

 Default: Auto Packet Format.

 Usage Guide: As the CISCO has adopted the packet format different with the one

provided by IEEE, while many companies also adopted the CISCO format to be CISCO

compatible, we have to provide support to both formats. The standard format is

originally the one provided by IEEE, and the privacy packet format is CISCO compatible.

In case we are not sure about which the packet format is on partner, the AUTO

configuration will be preferred so to identify the format by the packets they sent. The

AUTO packet format is set by default in the concern of better compatibility with

previous products and the leading companies. The packet format will be privacy format

before receiving the partner packet when configured to AUTO.

 When the format is not AUTO and the received packet format from the partner does

not match the configured format, we set the state of the port which receives the

unmatched packet to DISCARDING to prevent both sides consider themselves the root

which leads to circuits.

 When the AUTO format is set, and over one equipment which is not compatible with

each other are connected on the port (e.g. a equipment running through a HUB or

Transparent Transmission BPDU is connected with several equipments running MSTP),

the format alter counts will be recorded and the port will be disabled at certain count

threshold. The port can only be re-enabled by the administrator.

 Example: Configure port message format as the message format of IEEE.

Switch(config)#interface ethernet 1/0/2

 Switch(Config-If-Ethernet1/0/2)#spanning-tree format standard

 Switch(Config-If-Ethernet1/0/2)#

Qtech QSW-8200-28T-AC — настройка команд MSTP: Руководство пользователя [8/23]

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