Tags:


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  1. For r1 why is 3.3.3.3 untagged?
    Similar for r3 why is 1.1.1.1 untagged?

  2. That’s what this tutorial is about…filtering tags so not all prefixes get a tag. R2 only sends a tag for 2.2.2.2 /32 to R1 and R3, not for 1.1.1.1/32 or 3.3.3.3/32.

  3. TDP is the old Cisco equivalent protocol for LDP. LDP is an IETF standard. On older IOS versions, TDP is the default. Nowadays LDP is the default. There is a command to change the protocol:

    R1(config)#mpls label protocol ?
      ldp  Use LDP (default)
      tdp  Use TDP
  4. hi

    R3(config)#access-list 1 permit 3.3.3.3 0.0.0.0
    R3(config)#no mpls ldp advertise-labels
    R3(config)#mpls ldp advertise-labels for 1
    

    (mpls ldp advertise-labels for ) is a command ok but ( 1) what for i dont understand

  5. Hello Staut

    When speaking about MPLS, the term label and tag may be used interchangeably. The term label is the officially correct one, but keep in mind that in the context of MPLS, the term tag may be used as well.

    I hope this has been helpful!

    laz

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