5. VLAN Trunk and Etherchannel Bundles Flashcards
What are the 4 VTP roles?
- Server
- Client (config not local)
- Transparant
- Off
What is the difference between VTPv1/2 en VTPv3?
1 and 2 only support VLAN 1-1005
How does VTP communicate?
With a multicast address
What are the 3 VTP messages?
- Summary
- Subset
- Client request
When is a VTP summary message send?
Every 300 seconds or when a VLAN is added
What needs to be configured to activate VTP?
- version
- domain
- role
- password is optional
Why must the revision number for a new VTP switch be set to 0?
If the revision number is higher then the one from the VTP domain it will overwrite
How are dynamic trunk ports established?
By sending DTP packets to negotiate
When is a DTP message send?
Every 30 seconds
What are the DTP modes?
- Trunk
- Dynamic desirable
- Dynamic auto
What does the dynamic desirable mode do?
Acts like an access port but listens and advertises for DTP to the other side to establish trunk
What does the dynamic auto mode do?
Acts like an access port but listens for DTP to the other side to establish trunk
How can you prevent a static trunk port from negotiating?
switchport nonegotiate
What is the downside of statically configuring Etherchannel?
When a member goes down, the line will stay up/up as there is no health check.
What are the 2 Etherchannel protocols?
- PAgP (Cisco)
- LACP
