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ISIS PDU – Types and Wireshark sample packets

March 8, 2026May 8, 2026 SRL0Tagged ISIS, PDU, Routing

Intermediate systems send and receive packets and relay (forward) packets. ISO packets are called ISIS Protocol Data Unit packets, or in short ISIS PDU. There are four PDU types and all share a common header. This common header has the same structure and information for all four PDU types, except the ‘PDU Type’ filed as […]

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