How to Configure Local SPAN Port on Cisco Catalyst Switch

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  1. EtherChannel bundles individual Ethernet links into a single logical link that provides bandwidth up to 1600 Mbps (Fast EtherChannel, full duplex) or 16 Gbps (Gigabit EtherChannel) between two Cisco Catalyst switches. All interfaces in each EtherChannel must be the same speed and duplex, and both ends of the channel must be configured as either a Layer 2 or Layer 3 interface.

    If a link within the EtherChannel bundle fails, traffic previously carried over the failed link is carried over the remaining links within the EtherChannel.

    There are two protocols used for the link aggregation:

    Cisco’s proprietary Port Aggregation Protocol (PAgP).
    IEEE standard Link Aggregation Protocol (LACP)

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