CCNA

CCNA Study Guide
online cisco ccna training guide – collection of high quality CCNA tutorials.
These tutorials are prepared with single slogan; “provide best online CCNA training absolutely free”. This comprehensive collection of CCNA Study material is exactly; what you need to prepare for following exams CCNA Routing and Switching; Cisco Certified Entry Networking Technician (CCENT), Interconnecting Cisco Networking Devices – part 1 (ICND-1); Interconnecting Cisco Networking Devices – part 2 (ICND-2). CCNA certificate is a goal in your career journey. So to get this goal we arranged this exclusive CCNA training program in such a way that you get advantage from these CCNA tutorials in exam and after getting certificate in your job life.

Static Mapping command Examination

We earlier discussed that Cisco routers support all network layer protocols over Frame Relay. We also know that the address-to-DLCI mapping can be accomplished both by dynamic or static mapping. Frame Relay static mapping ever depends on the network needs. To map between a next hop protocol address and DLCI destination address, the follow command […]

Frame Relay Address Mapping Exclusive

Cisco routers support all network layer protocols such as IPv4, IPv6, IPX, and AppleTalk over Frame Relay. For transmitting data over Frame Relay, it needs to know which local DLCI maps to the Layer 3 address of the remote destination. In simple words Frame Relay address mapping matches a next-hop IP address that sits on […]

Frame Relay Encapsulation – Exclusive Explanation

As we earlier discussed that Frame Relay is working on the Datalink Layer of the OSI Model. So, it takes data packets from the upper layer of the OSI model, encapsulates the data into Frame Relay frame, and then passes the frame to the physical layer of the OSI Model for delivery on the network. […]

Multiple Virtual Circuits (VCs) – Briefly Explained

Frame Relay is a multiplexing technique that transmits only one frame at a time. Multiple virtual circuits can be used on a single physical line. The Frame Relay Access Device (FRAD), or router connected to the Frame Relay network, may have multiple virtual circuits linking it to different endpoints. Multiple VCs on a single physical […]

Frame Relay Virtual Circuits (VCs) – Exclusiv Explanation

We have already discussed Frame Relay in the previous lessons What is Frame Relay? Exclusive Introduction that it provides connection-oriented data link layer communication using a Frame Relay virtual circuit. Frame Relay Virtual Circuits (VCs) is a logical connection between two data terminal equipment (DTE) devices across a Frame Relay packet-switched network (PSN). The circuits are […]

How to Configure Challenge Handshake Authentication Protocol (CHAP)

Challenge Handshake Authentication Protocol (CHAP) periodically checks the character of the far off hub utilizing a three-way handshake. The hostname on one switch must match the username the other switch has designed. The passwords should likewise coordinate. The password value is variable and changes unpredictably while the link exists. When the PPP link establishment phase […]

Password Authentication Protocol (PAP)

PPP support different option that can be configured optionally. One of these options is authentication. Authentication option provides a method to negotiate the use of a particular protocol for Authentication. By default, authentication is not required. Password Authentication Protocol (PAP) and Challenge Handshake Authentication Protocol (CHAP) can be used for PPP links authentication which is defined […]

PPP Configuration

Remember that HDLC is the default encapsulation protocol for Cisco routers. If PPP configuration is not done on Cisco routers, the default encapsulation will be used. To set PPP as the encapsulation method used by a serial interface we need PPP configuration on the serial interfaces. The PPP configuration for the below topology is following. […]

LCP Options

PPP support different option than can be configured optionally. Authentication using PAP or CHAP, Compression using either Stacker or Predictor and Multilink that combines two or more channels to increase the WAN bandwidth. To negotiate these PPP options, the LCP link-establishment frames contain option information in the data field of the LCP frame, as shown […]

NCP Explained

When a PPP link has been initiated, the LCP passes control to the appropriate Network Control Protocol (NCP). NCP is a set of protocols forming a part of PPP. PPP is a data link layer protocol that can transmit multiprotocol data between two point-to-point. PPP’s modular model allows LCP to set up the link and […]

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