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1.5 Configure, verify and troubleshoot (Layer 2/Layer 3) EtherChannel – Alex Wilkins Technology Portfolio
Port STP change designated→disabled; Port status change old: 1Gfdx, new: d... - The Meraki Community
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Layer 2 Configuration Guide, Cisco IOS Release 15.2(2)E (Catalyst 2960-X Switch) - Configuring EtherChannels [Cisco Catalyst 2960-X Series Switches] - Cisco
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