The device dynamically builds the address table by using the MAC source address of the frames received. 1/10-Gigabit Ethernet operates in full duplex only. When packets can flow in both directions simultaneously, the effective Ethernet bandwidth doubles. In full-duplex mode, which is configurable on these interfaces, two stations can transmit and receive at the same time. Typically, 10/100-Mbps Ethernet operates in half-duplex mode, which means that stations can either receive or transmit. Because each LAN port connects to a separate Ethernet collision domain, servers in a switched environment achieve full access to the bandwidth.īecause collisions cause significant congestion in Ethernet networks, an effective solution is full-duplex communication. The device solves congestion problems caused by high-bandwidth devices and a large number of users by assigning each device (for example, a server) to its own 10-, 100-, 1000-Mbps, or 10-Gigabit collision domain. New connections can be made between different segments for the next packet. Switched connections between Ethernet segments last only for the duration of the packet. The device supports simultaneous, parallel connections between Layer 2 Ethernet segments. Feature History for Configuring Layer 2 Switching - CLI Version.Additional References for Layer 2 Switching - CLI Version.Configuration Example for Layer 2 Switching.Verifying the Layer 2 Switching Configuration.Clearing Dynamic Addresses from the MAC Table.Checking Consistency of MAC Address Tables.Configuring the Aging Time for the MAC Table.Configuring a Static MAC Address on a Layer 3 Interface.Guidelines and Limitations for Configuring MAC Addresses.Prerequisites for Configuring MAC Addresses.Licensing Requirements for Layer 2 Switching.Virtualization Support for Layer 2 Switching.Consistent MAC Address Tables on the Supervisor and on the Modules.Building the Address Table and Address Table Changes.
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