isis-4----Page:3
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Sub-TLVs format Sub-TLV 1 (to be assigned by IANA) 1 byte Type (value: 1) 1 byte Length (value: multiple of 4) One or more instances of 4 bytes of admin tag Sub-TLV 2 (to be assigned by IANA) 1 byte Type (value: 2) 1 byte Length (value: multiple of 8) One or more instances of 8 bytes of admin tag |