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Practice CCNA 640-802. 3 WAN Protocols: HDLC, PPP, and Frame-Relay You Should Know » Router Switch Blog. Your company is connected to the Internet, isn’t it?

3 WAN Protocols: HDLC, PPP, and Frame-Relay You Should Know » Router Switch Blog

So what WAN protocol do you use to connect to the Internet? Chances are, that if you have a T1 leased line to the Internet or a private network between locations, you use one of these 3 WAN Protocols: HDLC, PPP, or Frame-relay. Let’s explore the differences and similarities of these protocols. What is HDLC? HDLC stands for High-Level Data Link Control protocol. Routers & Switches. VLAN Trunking Protocol (VTP) & VTP Modes » Router Switch Blog. What is a VLAN Trunking Protocol (VTP)?

VLAN Trunking Protocol (VTP) & VTP Modes » Router Switch Blog

“VTP allows a network manager to configure a switch so that it will propagate VLAN configurations to other switches in the network” VLAN Trunking Protocol (VTP) is a Cisco proprietary Layer 2 messaging protocol that manages the addition, deletion, and renaming of VLANs for the Cisco Catalyst Switches in the same VLAN Trunking Protocol (VTP) domain. VLAN Trunking Protocol (VTP) enables Cisco Catalyst Switches to exchange and maintain consistent VLAN information amongst a group of Cisco Catalyst Switches. Learning Network Mobile.