Switching

 View Only

IMPORTANT MODERATION NOTICE

This community is currently under full moderation, meaning  all posts will be reviewed before appearing in the community. Please expect a brief delay—there is no need to post multiple times. If your post is rejected, you'll receive an email outlining the reason(s). We've implemented full moderation to control spam. Thank you for your patience and participation.



Question on MSTP inter-region communication

  • 1.  Question on MSTP inter-region communication

     
    Posted 04-16-2022 12:59

    Hi.

     

    Consider the L2 network divided amongst two MSTP regions.

     

     

    MSTP Region 1 ------------------------  MSTP Region 2

    MSTI 1 (vlans 1-10)                              MSTI1 (vlans 1-20)

     

    VLAN 5 is common to both regions.

    Let's say I have two hosts belonging to VLAN 5, but in two different MSTP regions.

    Are both these hosts in the same broadcast domain?

    If not, how can they communicate with each other? I understand there is a CST between regions, but how would a packet exit a region's MSTI to jump onto the CST?

     

    Thanks,

    Deepak


    Juniper Business Use Only