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Description Cisco Systems plays an active role in the IETF committees to bring Cisco technology initiatives into the standards track. At the same time, Cisco created many proprietary protocols, which are mostly included in the IOS, the operating system of Cisco products. In this book, we have selected the most frequently used Cisco protocols to introduce.

CDP: Cisco Discovery Protocol
CGMP: Cisco Group Management Protocol
DISL: Dynamic Inter-Switch Link Protocol
DTP: Cisco Dynamic Trunking Protocol
EIGRP: Enhanced Interior Gateway Routing Protocol
HSRP: Hot Standby Router Protocol
IGRP: Interior Gateway Routing Protocol
ISL: Cisco Inter-Switch Link Protocol
NetFlow: Cisco traffic mamagement protocol
RGMP: Cisco Router Port Group Management Protocol
TACACS and TACACS+: Terminal Access Controller Access Control Protocol
VTP: Cisco VLAN Trunking Protocol
XOT: Cisco X.25 Over TCP Protocol