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Layer 2 Switches Characteristics

  • 1.  Layer 2 Switches Characteristics

    Posted 08-13-2017 08:55

    Which Three statements are correct: 

     

    Does LAYER-2 Switches forward traffic addressed to hosts that reside on same collision domain

    Does LAYER-2 Switches forward traffic addressed to hosts that reside on a different collision domain.

    Layer 2 Switches separate collision domains

    Layer 2 Switches separate multicast domains.

    Layer 2 Switches forward broadcast traffic.



  • 2.  RE: Layer 2 Switches Characteristics

    Posted 08-15-2017 11:19

    https://www.juniper.net/documentation/en_US/junos/topics/concept/l2-qfx-series-overview.html

    https://www.juniper.net/documentation/en_US/junos/topics/concept/bridging-ex-series-understanding.html

     

    "Segments of a LAN can be linked at the frame level using bridges. Bridging creates separate broadcast domains on the LAN, creating VLANs, which are independent logical networks that group together related devices into separate network segments. The grouping of devices on a VLAN is independent of where the devices are physically located in the LAN. Without bridging and VLANs, all devices on the Ethernet LAN are in a single broadcast domain, and all the devices detect all the packets on the LAN.

    Forwarding is the relaying of packets from one network segment to another by nodes in the network. On a VLAN, a frame whose origin and destination are in the same VLAN are forwarded only within the local VLAN."



  • 3.  RE: Layer 2 Switches Characteristics

    Posted 03-25-2018 08:01

     

     

    Does LAYER-2 Switches forward traffic addressed to hosts that reside on same collision domain

    YES

    Does LAYER-2 Switches forward traffic addressed to hosts that reside on a different collision domain.

    No You need a layer 3 device

    Layer 2 Switches separate collision domains

    YES

    Layer 2 Switches separate multicast domains.

    NO. 

    Layer 2 Switches forward broadcast traffic.

    YES



  • 4.  RE: Layer 2 Switches Characteristics

     
    Posted 03-25-2018 22:41

    Hi Folks,

    Just my 2 cents on this…

     

    Some good documentations on ‘Collision Domains and LAN Segments’,

     

    https://www.juniper.net/documentation/software/jseries/junos93/jseries-config-guide-basic/collision-domains-and-lan-segments.html