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Only active MAC addresses on the network and that it is able to flush This aging process ensures that the switch tracks The value set, the switch removes that MAC address from the Ethernet A timer on the switch periodicallyĬhecks the timestamp, and if the MAC address of a node is older than Each time the switch detects trafficįrom a MAC address that is in its Ethernet switching table, it updates

Table, the switch records a timestamp of when the information about For each MAC address in the Ethernet switching

The switch uses a mechanism called aging to keep the Ethernet Switch to learn the MAC address of the node and to add the address It sends an acknowledgment packet back to the switch, allowing the When the destination node receives the flooded traffic, The traffic to all interfaces except the interface on which it was MAC address is not in the Ethernet switching table, the switch floods There is no entry in the Ethernet switching table for VLAN v-10 (theĮthernet switching table is organized by VLAN), then the traffic isįlooded to all access and trunk interfaces that are members of VLANįlooding allows the switch to learn about destinations thatĪre not yet in its Ethernet switching table. Is received on an interface that is associated with VLAN v-10 and The other interfaces associated with the VLAN. If the MAC address is not found, the traffic is flooded out all of The Ethernet switching table for the MAC address of the destination. When the switch receives traffic on an interface, it searches On which the traffic was received and the time when the address was Table, along with two other pieces of information-the interface It places these addresses into its Ethernet switching To learn MAC addresses, the switch reads all packets that itĭetects on the LAN or on the local VLAN, looking for MAC addresses So that MAC addresses never age out of the table. On all VLANs on the switch or on specified VLANs, as well as configureĪging time to be unlimited, either on all VLANs or on specified VLANs, That does not support ELS, you can configure the MAC table aging time

(Junos OS) for EX Series switches with support for the Enhanced LayerĢ Software (ELS) configuration style, you can configure the MAC tableĪging time on all VLANs on the switch. If your switch runs Juniper Networks Junos operating system When the aging time for a MAC address in the table expires, the In the Ethernet switching table, also called the MAC table. Juniper Networks EX Series Ethernet Switches store MAC addresses