Ch2 VTP & DTP Flashcards
Describe VTP summary advertisement
inform adjacent switches of the VTP domain name & configuration revision number
Describe VTP advertisement request
sent in response to summary advertisement received containing a higher configuration revision number
Describe VTP subset advertisement
sent in response to advertisement request, includes VLAN information
How often (by default) are VTP summary advertisements sent?
Every 5 minutes
A switch receives a summary advertisement with a higher configuration revision number than what it knows about. What happens next
Local switch sends a VTP advertisement request
What is the primary difference between VTP v1 and v2?
V2 supports token-ring networks
What two methods can be used to reset the VTP configuration revision of a switch to 0?
- Change VTP domain name to something else (and back)
2. Change VTP mode to transparent and back
In what VTP mode can VLANs not be created or modified on a switch?
client mode
On a given switch, VLANs can be created or modified, but the additions or changes remain local to that switch. What VTP mode is operational?
Transparent
On a given switch, VLANs can be created or modified for the entire VTP domain. What VTP mode is operational?
Server
On a given switch, VLAN information is only retained as long as the switch is powered on. What VTP mode is operational?
client
A VTP-enabled switch needs to be enabled for extended VLANs. What mode must the switch be in?
transparent
True or false: a switch operating in transparent mode participates in VTP?
false
Where does a VTP-enabled switch operating in server mode store VLAN information?
NVRAM
What three options must “match” between two switches that wish to participate in VTP?
VTP domain name (case sensitive) VTP password (if set) VTP version
Extended VLANs can only be created if the switch is operating in this mode
transparent
Normal-range VLANs are numbered…
1-1005
Extended range VLANs are numbered…
1006-4094
True or false: VTP can accommodate extended range VLANs?
False. VTP does not support extended range VLANs
True or false: extended range VLANs are stored in the running config
true
True or false: normal-range VLANs are stored in vlan.dat files
true
Why is 4094 the upper boundary for extended VLANs
due to 12-bit limit of VLAN ID field in 802.1Q header
What command lists a count of all configured VLANs
show vlan summary
How would one disable DTP on a switch port?
switchport nonegotiate
A user deletes a VLAN with the no vlan vlan-id command. What happens to ports already associated with that VLAN?
They are left in an inactive state, still assigned to the VLAN. They should be re-assigned to an active VLAN.
