Ccnp Tutorial Pdf

[Tyrell Baskerville]

Wehave many tutorials and practice labs on our site to help you understand the concepts of the CCNA exam. We have summarized them here in one place and categorized them into specific topics to make your learning easier.

The Network Time Protocol (NTP) is a crucial service not only for Cisco devices but for most network devices. Any device needs to be accurately synchronized with a reliable time source such as an NTP server.

DHCP Snooping is a Layer 2 security feature that can be configured on a switch to listen DHCP traffic and block DHCP OFFER and DHCP ACK packets (which can only be sent from a DHCP server) on untrusted ports.

Most traditional devices use a distributed architecture, in which each control plane is resided in a networking device. Each device will make its own decision. Therefore they need to communicate with each other via messages to work correctly.

In contrast to distributed architecture, centralized (or controller-based) architectures centralizes the control of networking devices into one device, called SDN controller. This is also the main idea when creating SDN. In other words, SDN creates a king to control the whole networking kingdom!

We all know when a packet reaches a router interface, the router will send the packet to the destination. But how can a router determines which route is the best to use to send the packet? In this tutorial we will learn more about how a router makes the forwarding decision.

To make the routing decision, the router must first build a table which contains all the best routes. When the packets arrive, the router just needs to check this table to choose the best match. This is called the routing table.

SSH (Secure Shell) is a secure method for remote access as it includes authentication and encryption. To do this, it uses a RSA public/private keypair. In this tutorial we are going to learn how to configure SSH for R1 to accept remote SSH access with the topology below.

In the digital world, where we use computers and the internet for many things, keeping our information safe is one of the most important tasks. This tutorial will explore some of the popular and important security concepts, making it easier for us to understand and use them to keep our online world secure and private.

Quality of Service (QoS) is a tool that allows our network to prioritize certain types of traffic. QoS defines the actions that a device can apply to a message between the time it enters the device until it exits the device. These actions are called per-hop behaviors (PHBs). With PHBs, we can discard, delay, or even change the header field of each packet. The goal of a PHB is to provide a specified amount of network resources to a class of traffic on a contiguous network.

PHB uses a set of codepoints to mark packets with different levels of priority. These codepoints are embedded in the Differentiated Services Code Point (DSCP) field of the Type Of Service (ToS) field of the IP header.

+ Queuing: the process of holding packets in a queue and scheduling their transmission based on priority. Utilizing algorithms such as Weighted Fair Queuing (WFQ), this process ensures high-priority packets are transmitted before their low-priority counterparts.

+ Congestion: occurs when network bandwidth is insufficient to accommodate all traffic. PHB includes mechanisms like Random Early Detection (RED) to manage congestion by discarding low-priority packets before higher-priority ones.

+ Policing: involves monitoring network traffic and enforcing predetermined traffic rate limits. Packets exceeding specified rate limits may be discarded or marked with a lower priority.

+ Shaping: Shaping is the control of the rate at which packets enter the network, preventing congestion and ensuring timely transmission of all packets. Excess traffic is stored in a buffer and released at a controlled rate, shaping the traffic to conform to the desired profile. Shaping is a more gentle approach that attempts to smooth out bursts of traffic. Traffic shaping is applicable only on outbound interfaces as buffering and queuing happens only on outbound interfaces

The figure above shows the difference between Policing and Shaping. With traffic policing, excess traffic is usually dropped while with traffic shaping, excess traffic is buffered and sent again with a little delay.

By default, all interfaces on a Cisco switch are in an enabled state, meaning that anyone can potentially connect to your network through a wall socket, posing a security risk. Port Security is a feature that enhances the security of Cisco switches by controlling access to Ethernet ports based on the MAC addresses of connected devices.

Port Security allows network administrators to associate only specific MAC addresses or set a maximum number of MAC addresses with each switch port. This association restricts access to the interface, ensuring that only authorized devices with recognized MAC addresses can use it. If an unauthorized device attempts to connect, you can configure the switch to take predefined actions, such as discarding the incoming traffic, sending a warning message or shutting down the port to mitigate the security threat.

Puppet is built on server-client architecture which comprises a master (centralized server) and some/many nodes (clients). In each node, a Puppet Agent is installed to communicate with the Puppet Master. Puppet Master is the place where all Puppet codes are written and stored. These codes dictate the instructions for performing various tasks for the client. If the Clients need something, they simply request them.

Puppet is based on a Pull deployment model, where the nodes check in regularly after every 1800 seconds with the Master to see if anything needs to be updated in the agent. If anything needs to be updated the agent pulls the necessary Puppet codes from the Master and performs required actions.

Our topology is very simple with only R1 router and a cloud (represented our real laptop/desktop). But please do not create a cloud now as we need to configure a Microsoft Loopback Adapter for it first so please follow the steps below.

Point-to-Point Protocol (PPP) is an open standard protocol that is mostly used to provide connections over point-to-point serial links. The main purpose of PPP is to transport Layer 3 packets over a Data Link layer point-to-point link. PPP can be configured on:

+ Asynchronous serial connection like Plain old telephone service (POTS) dial-up

+ Synchronous serial connection like Integrated Services for Digital Network (ISDN) or point-to-point leased lines.

The main disadvantage of HSRP and VRRP is that only one gateway is elected to be the active gateway and used to forward traffic whilst the rest are unused until the active one fails. Gateway Load Balancing Protocol (GLBP) is a Cisco proprietary protocol and performs the similar function to HSRP and VRRP but it supports load balancing among members in a GLBP group. In this tutorial, we will learn how GLBP works.

Network Configuration Protocol (NETCONF), like the traditional CLI mode and SNMP, is a network device management protocol. It provides a mechanism for configuring devices and querying the network configuration and status. So why should we use NETCONF instead of CLI? The main reason is: NETCONF is ideal for network automation and cloud-based networks.

The traditional CLI mode is designed to be used by humans and based on man-machine interfaces. The CLI provides humans with a very user-friendly means for interacting with a device. Commands are very readable, easy to remember and have no painful syntactic requirements. But the configuration varies with vendors. The same command is implemented in different ways on different devices and on different vendors. Therefore, the manual learning and maintaining cost is high.

Postman and RESTCONF are two topics that we need to grasp in the ENCOR exam so in this tutorial we will learn the basis about them. In order to complete this tutorial, please download and install Postman first. This is a simple task so we will not mention it here.

CCNP Routing and Switching ROUTE 300-101 Complete VideoCourse is a comprehensive training course thatbrings Cisco CCNP R&S ROUTE exam topics to life through the useof real-world demonstrations, animations, live instruction,and configurations, making learning these foundational networkingtopics easy and fun.

Best-selling author, expert instructor, and double CCIE KevinWallace walks you through the full range of topics onthe CCNP Routing and Switching ROUTE 300-101 exam,including fundamental routing concepts; IGP routing protocols,including RIPng, EIGRP, and OSPF; route distribution and selection;BGP; IPv6 Internet connectivity; router security; and routingprotocol authentication. This unique product contains multipletypes of video presentations, including live instructorwhiteboarding, real world demonstrations, animations of networkactivity, dynamic KeyNote presentations, doodle videos, andhands-on router and switch CLI configuration and troubleshooting inreal lab environments, allowing you to both learn the concepts andthe hands-on application.

The 149 videos contained in this product provide you more than12 hours of instruction. Modules are divided into easy todigest lessons and the product concludes with a series of lessonsthat give you valuable advice to help prepare for the actualexam.

Designed to take you inside CCNP routing concepts in aunique and interactive way, CCNP Routing and Switching ROUTE 300-101 Complete VideoCourse is guaranteed to help you master the foundationalnetworking topics that will help you succeed on the exam and on thejob.

Characteristics of routing protocols, including traffic and networktypes, IGP and EGP comparison, categories of routing protocols,convergence times, route summarization, scalability and Cisco easyvirtual networking theory.

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