What port does CDP use?

CDP does not use a specific default port number.

Unknown

Cisco Discovery Protocol

Q: What is Cisco Discovery Protocol?

Cisco Discovery Protocol (CDP) is a Data Link Layer protocol in the Monitoring & Management category. Cisco proprietary Layer 2 protocol for discovering directly connected Cisco devices. Shares device type, IP address, IOS version, and interface information across Cisco infrastructure.

Data Link Layer — Monitoring & Management

프로토콜 개요

정식 명칭 Cisco Discovery Protocol

약어 CDP

OSI 계층 Data Link Layer

카테고리 Monitoring & Management

소개 CDP

Cisco proprietary Layer 2 protocol for discovering directly connected Cisco devices. Shares device type, IP address, IOS version, and interface information across Cisco infrastructure.

Data Link Layer Monitoring & Management

Cisco Discovery Protocol

프로토콜 개요

소개 CDP

관련 프로토콜 — Data Link Layer