| CDP, Cisco Discovery Protocol |
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Description | Glossary | RFCs | Publications | Obsolete RFCs |
| Protocol suite: | TCP/IP. |
| Protocol type: | Application layer protocol. |
| PPP protocol: | 0x207 |
| MIME subtype: | |
| SNMP MIBs: | |
| Working groups: | |
| Links: | Wireshark: CDP. |
A Cisco proprietary protocol.
| PPP header | CDP header | Data ::: |
CDP header:
| 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Version | TTL | Checksum | |||||||||||||||||||||||||||||
| Type | Length | ||||||||||||||||||||||||||||||
| Data ::: | |||||||||||||||||||||||||||||||
Version.
1 byte.
CDP protocol version.
TTL, Time to live.
1 byte.
The amount of time in seconds that a receiver should retain the information contained in this packet.
Checksum. 2 bytes.
Type. 2 bytes.
Length.
2 bytes.
The total length in bytes of the Type, Length and Data fields.
RFCs:
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Description | Glossary | RFCs | Publications | Obsolete RFCs |