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Which two values displayed in the output from the show spanning-tree MSTP configuration command must match on

Which two values displayed in the output from the show spanning-tree MSTP configuration command must match on all switches participating in the same MSTP region? (Choose two)

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A.
root bridge identifier

B.
authentication checksum

C.
context identifier

D.
configuration digest

24 Comments on “Which two values displayed in the output from the show spanning-tree MSTP configuration command must match on

  1. warrior00 says:

    Options C,D

    These fields (only) are shown via “show spanning-tree mstp configuration” command:

    – context identifier
    – region name
    – revision
    – configuration digest




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  2. Ahmed Abd Allah says:

    But in book , they Mentioned that values should match are:

    1-Confiugration Digest
    2-Revision Number
    3-Region Name.

    but they didn’t mention context identifier as a must.




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  3. 7oda says:

    Guys C,D are correct,check the below

    show spanning-tree mstp configuration

    user@host> show spanning-tree mstp configuration routing-instance vs1 detail
    MSTP configuration information
    Context identifier : 1
    Region name : henry
    Revision : 3
    Configuration digest : 0x6da4b5c4fd587757eef35675365e1

    MSTI Member VLANs
    0 0-99,101-199,201-4094
    1 100
    2 200




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  4. BitchTits says:

    another dumb as fuck question…. the context id is internally generated by the juniper device. the digest needs to match because it’s a hash of the vlans. if it doesn’t match, you’ve fucked up your vlans in the region. the revision level must also match. fucking retard question writers.




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