VTP is used to make VLAN configuration more effortless. VLANs are configured on the VTP, while a VTP client simply synchronizes its configuration with the VTP server. A transparent switch forwards packets without synchronizing its configuration.
All variations of modes result in the TRUNK mode except when:
- one of both ports is set to access
- both ports are dynamic auto
LACP is an open source protocol for Link Aggregation.
Link Aggregation summarizes multiple physical connections into one virtual connection.
To be able to configure extendes VLANs, the vtp mode of the switch must be configured as transparent.
All VLANs with an id of 1006 or higher are extended VLANs.
EtherChannel is a Cisco-proprietary Link Aggregation.
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