Cisco LISP - The Locator/ID Separation Protocol. Locator/ID Separation Protocol. 3 WAN Protocols: HDLC, PPP, and Frame-Relay You Should Know » Router Switch Blog. Your company is connected to the Internet, isn’t it? 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. Like the two other WAN protocols mentioned, HDLC is a Layer 2 protocol (see OSI Model for more information on Layers). HDLC performs error correction, just like Ethernet. HDLC is actually the default protocol on all Cisco serial interfaces. What is PPP? You may have heard of the Point to Point Protocol (PPP) because it is used for most every dial up connection to the Internet.
The differences between PPP and HDLC are: PPP is not proprietary when used on a Cisco routerPPP has several sub-protocols that make it function.PPP is feature-rich with dial up networking features. Free Network Diagram Software - Cisco Certification. In order to pass your Cisco Certification exam, you are required to memorize countless technical details. The best way to do this is to practice your skills over and over again across many labs. Unfortunately, without a way to document your labs, a lot of what you practiced is still forgotten. NetBrain Personal Edition can help you document your labs automatically, by allowing you to: Discover devices and create rich diagrams from your configuration data Automatically capture, organize, and annotate show command results Take notes alongside the map with the built-in Notes tab Once your lab is fully documented inside a NetBrain Qmap, you can review it down the road without the hassle of having to rebuild it.
Personal Edition Highlights. TestKing Pass4Sure 70-680 MCSE 640-802 CCNA 70-290 70-640 70-270 70-291 70-642 70-646 - Free Download. FreeNetworkStudy. Multi Protocol Label Switching basics | The Network Journal. MPLS label 1. 32-bit long. 2. First 20 bits for label, second 3 bits for EXP which is used for quality of service, third 1 bit for bottom of the stack, last 8 bits for time to live. 3. Here is the break down: a. bit 0 to bit 19: Label. b. bit 20 to bit 22: EXP. c. bit 23: Bottom of the stack (BoS), 0 means it is not BoS, 1 means it is BoS. d. bit 24 to 31: TTL. 4. 5.
Where does MPLS label reside? MPLS is a shim between layer2 header (can be PPP, HDLC, Ethernet) and Layer3 header (IPv4, IPv6, IPX….). MPLS is said to be layer 2.5, because it fits neither in layer2 nor layer3. Label Switch Router (LSR) 1. 2. 3. 4. 5. Forward Equivalence Class (FEC) 1. 2. 3. 4. Label distribution protocols 1. 2. 3. 4. This command shows whether MPLS is in operation or not, it also informs you which label distribution protocol the LSR is using. Upstream LSR? 1. 2. Local and remote label/binding 1. 2. Label information base (LIB) and Label forwarding instance base (LFIB) 1. 2. 3. This LSR is the egress LSR of 10.1.1.0/30.