Nortel Discovery Protocol

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Nortel Discovery Protocol
NDP capture with Wireshark

The Nortel Discovery Protocol (NDP) formerly called SynOptics Network Management Protocol (SONMP) is a Data link layer (layer 2) network protocol for topology discovery of Nortel devices. The topology information is graphically displayed by the Nortel Enterprise Switch Manager software.

The Nortel Discovery Protocol was originally called the SynOptics Network Management Protocol (SONMP) before the SynOptics and Wellfleet merger in 1994. The protocol was rebranded as the Bay Network Management Protocol (BNMP) and some protocol analyzers did reference it as the Bay Discovery Protocol (BDP). Four years later though in 1998 Bay Networks was acquired by Nortel and the protocol is now called the Nortel Discovery Protocol (NDP).

The IEEE 802.1AB or Link Layer Discovery Protocol that is supported on most Nortel equipment is a standards based (vendor-neutral) protocol that will support single and multi vendor environments.[1]

  • NDP vendor field = 0x000081

Contents

[edit] See also

[edit] NDP Other Names

The NDP has also been called other names

  • Bay Discovery Protocol (BDP)
  • Bay Topology Protocol
  • Bay Network Management Protocol (BNMP)
  • Nortel Management MIB (NMM)
  • Nortel Topology Discovery Protocol (NTDP)
  • SynOptics Network Management Protocol (SONMP)

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[edit] External links