Which parameters in VTP advertisements are checked before being accepted and processed? (Choose three.)
A. VLAN ID
B. Password
C. VTP mode
D. Switch name
E. Revision number
F. Management domain name
Correct Answer: BEF
Explanation/Reference:
Answer:
The management domain name, password, and revision number are all checked before the VTP frame is processed.
VTP advertisements are flooded throughout the management domain every five minutes or whenever there is a change. These advertisements are originated from a switch that is in server mode and are propagated by switches that are in either client or transparent mode. Before a client or another server accepts or incorporates the information sent in the advertisement, it checks the management domain name and password (if defined) against its own configuration. The revision number is then checked. If the revision number is higher than the last value stored in the receiving switch, the receiving switch will overwrite its VLAN database with the information in the advertisement.
A VTP switch in transparent mode will receive and forward VTP advertisements. It will not use the contents of the advertisement to synchronize with its own VLAN database.
To set the VTP mode of a switch execute the following command at the global prompt. All switches are set to server mode by default; therefore, the command is only necessary to set a switch to client or transparent mode. The command syntax is:
switch(config)# vtp mode {transparent | client}
Objective:
Layer 2 Technologies Sub-Objective:
Configure and verify trunking
References:
Cisco > Home > Support > Technology Support > LAN Switching > Virtual LANS/VLAN Trunking Protocol (VLANS/VTP) > Configure > Configuration Examples and Technotes > All Transparent VTP Domain to Server-Client VTP Domain Migration Configuration Example
Cisco > Cisco IOS LAN Switching Command Reference > udld through vtp v2-mode > vtp
Explanation/Reference:
Answer:
The management domain name, password, and revision number are all checked before the VTP frame is processed.
VTP advertisements are flooded throughout the management domain every five minutes or whenever there is a change. These advertisements are originated from a switch that is in server mode and are propagated by switches that are in either client or transparent mode. Before a client or another server accepts or incorporates the information sent in the advertisement, it checks the management domain name and password (if defined) against its own configuration. The revision number is then checked. If the revision number is higher than the last value stored in the receiving switch, the receiving switch will overwrite its VLAN database with the information in the advertisement.
A VTP switch in transparent mode will receive and forward VTP advertisements. It will not use the contents of the advertisement to synchronize with its own VLAN database.
To set the VTP mode of a switch execute the following command at the global prompt. All switches are set to server mode by default; therefore, the command is only necessary to set a switch to client or transparent mode. The command syntax is:
switch(config)# vtp mode {transparent | client}
Objective:
Layer 2 Technologies Sub-Objective:
Configure and verify trunking
References:
Cisco > Home > Support > Technology Support > LAN Switching > Virtual LANS/VLAN Trunking Protocol (VLANS/VTP) > Configure > Configuration Examples and Technotes > All Transparent VTP Domain to Server-Client VTP Domain Migration Configuration Example
Cisco > Cisco IOS LAN Switching Command Reference > udld through vtp v2-mode > vtp
