How does a Junos device learn about MAC addresses when II is first connected to an Ethernet LAN?

The correct answer is C. The device learns the source MAC addresses from traffic in the network and stores this MAC. Junos devices learn about MAC addresses by examining the source MAC address of frames received on an interface and then storing these MAC addresses in the MAC address table (also known as the forwarding database) along with the interface on which the traffic was received.

Ethernet VPN (EVPN)

Question

Options

AThe device sends out a network broadcast message asking tor all devices and MAC addresses
BThe device learns the destination MAC addresses from traffic in the network and stores this MAC
CThe device learns the source MAC addresses from traffic in the network and stores this MAC
DThe device sends out a network multicast message asking for all devices and MAC addresses on

How the community answered

(62 responses)

A
5% (3)
B
16% (10)
C
73% (45)
D
6% (4)

Explanation

Junos devices learn about MAC addresses by examining the source MAC address of frames received on an interface and then storing these MAC addresses in the MAC address table (also known as the forwarding database) along with the interface on which the traffic was received.

Topics

#MAC learning#source MAC#Ethernet#MAC table

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