vlan routingCompTIA Network+ Course

Begin Learning Cyber Security for FREE Now!

FREE REGISTRATION
Already a Member Login Here

Home Forums Courses CompTIA Network+ Course vlan routing

Tagged: 

This topic contains 1 reply, has 2 voices, and was last updated by  Paul Rouk 2 years, 3 months ago.

Viewing 2 posts - 1 through 2 (of 2 total)
  • Author
    Posts
  • #85209

    pmendez368
    Participant

    I know that multi-layer switches perform both routing and switching and allow someone to set-up Vlans but what if a computer on one Vlan does for some reason need to contact a computer on another Vlan? does the switch route this traffic the same way a router would contact a different network normally?

    #85424

    Paul Rouk
    Participant

    It depends on the capabilities of the switch. For a layer 2 switch, a router is required for communication between VLANS. For more advanced switches, they can do the routing internally. Below is a paragraph from Cisco’s web site about how this works.

    “L2 only switches require a L3 routing device (either external to the switch or in another module on the same chassis). A new breed of switches, however, (for example, 3550 and 3750) incorporate routing capability within the switch. The switch receives a packet, determines that it belongs to another VLAN, and sends the packet to the appropriate port on the other VLAN.”

    Source: http://www.cisco.com/c/en/us/support/docs/switches/catalyst-3750-series-switches/45002-intervlan3750-45002.html#pre

    The link below has an explanation which might be a bit easier to understand.

    InterVLAN Routing Tutorial

Viewing 2 posts - 1 through 2 (of 2 total)

You must be logged in to reply to this topic.

Our Revolution

We believe Cyber Security training should be free, for everyone, FOREVER. Everyone, everywhere, deserves the OPPORTUNITY to learn, begin and grow a career in this fascinating field. Therefore, Cybrary is a free community where people, companies and training come together to give everyone the ability to collaborate in an open source way that is revolutionizing the cyber security educational experience.

Cybrary On The Go

Get the Cybrary app for Android for online and offline viewing of our lessons.

Get it on Google Play
 

Support Cybrary

Donate Here to Get This Month's Donor Badge

 
Skip to toolbar

We recommend always using caution when following any link

Are you sure you want to continue?

Continue
Cancel