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From: Joyal, Daniel R (Daniel) (joyal_at_LUCENT.COM)
Date: Fri Oct 11 2002 - 09:12:49 CDT

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    Does U-bit 0 imply that you now need a
    TE-capable option bit?

    -Dan

    -----Original Message-----
    From: Manral, Vishwas [mailto:VishwasMNETPLANE.COM]
    Sent: Friday, October 11, 2002 5:18 AM
    To: OSPFDISCUSS.MICROSOFT.COM
    Subject: OSPFv3 TE draft

    Hi folks,

    We are in the process of putting down a document for adding IPv6 TLV's for
    TE purposes and an LSA type in OSPFv3 for the same. We would want the
    opinion of the group regarding the setting of the U-bit in the TE-LSA type
    field.

    My opinion is that the U-bit should be set to 0, so that any router not
    recognizing the TE LSA would not forward the LSA any further. This I feel
    would help in the case where some routers in the area do not recognize the
    TE LSA while others do. This way redundant TE information would not be
    flooded in the entire area topology in case only part of the area
    understands the TE LSA.

    Thanks,
    Vishwas