Which interface configuration command enables a port to establish an EtherChannel only if it receives PAgP packets from the other switch?
- channel-group mode active
- channel-group mode auto
- channel-group mode desirable
- channel-group mode on
- channel-group mode passive
Explanation: The command channel-group mode active enables LACP unconditionally, and the command channel-group mode passive enables LACP only if the port receives an LACP packet from another device. The command channel-group mode desirable enables PAgP unconditionally, and the command channel-group mode auto enables PAgP only if the port receives a PAgP packet from another device.
Exam with this question: CCNA 3 v6 Chapter 4: Check Your Understanding
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