ccna icnd1

· Dynamic Routing : a route that can be self-adjusted based on network structure or traffic changes· category :1. Distance vector Routing Protocol (DV): RIP, IGRP Send routing entry via routing protocol2, Link State routing Protocol (LS): OSPF,

Auto is passive, desireable is activeAcive is active, passive is passive, different manufacturers recommend configuring onSW1 (config) #int range f0/1-2SW1 (config-if-range) #channel-group? Channel Group numberSW1 (Config-if-range) #channel-group 1%

First, the OSPF characteristics: 1.IETF Standard: Open room agreement, supported by different manufacturer's equipment 2. No loop by protocol: the implementation of SPF algorithm, will not produce loops 3. No class routing protocol: Support for

(1) interconnection between the VLAN: single-arm routing (2) Each PC can automatically obtain IP address: DHCP (3) Two switches require VLAN2 to go above, VLAN3 go below: STP load Balancing (4) SW2 can learn from SW1 VLAN related information:

[Lab environment] Cisco Packet Tracer 5.3.2 [PURPOSE] Simulate IOS damage on a Cisco device and practice how to fix IOS in ROM Monitor mode [Experiment topology] Lab procedure] 1. Connect the device according to the topology: Cisco devices do not

1. Functions of the data link layer Implements data error-free transmission. It receives raw data from the physical layer to form frames and bit groups) and transmits data between network devices. The frames contain the physical addresses of the

CDPCommand Show cdp neighbors displays connected network devices Show cdp display CDP Global Information Show cdp entry * displays all information about all adjacent routers. Show cdp entry WORD (vro name) displays all information about the vro. Un

This article lists the basic configurations and common configuration commands of Cisco routers in detail for actual operation problems. I believe this article will help you. Start the interface and assign an IP Address:Router>Router> enableRouter

Access Control List (ACL) is a List of router interface commands used to Control inbound and outbound data packets. ACL applies to all routing protocols, such as IP, IPX, and AppleTalk. The ACL is also defined based on each protocol. If the router

IP subnetting and variable length subnet masks (vlsm) Subnetting Basics Advantages of subnetting: 1. reduce network traffic 2. Improve Network Performance 3. simplified management 4. Easy to expand geographic scope How to creat subnets How do I

Refer to the exhibit, Host A pings interface s0/0 on Router 3, what's the TTL value for that ping?650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M01/8B/80/wKioL1hP7uixEixbAAH9oTpw4uM620.png "title=" QQ picture 20161213205137.png "alt=" Wkiol1

Based on security considerations, many companies may use the Wide Area Network Technology for Intranet Communication.   Lan Wan Network cable Serial Line Transmission Distance near Long Transmission Distance

802 provisions802.1 bridging802.2 Logical Link Control802.3 Ethernet802.4 Token delivery Bus802.5 Token Ring802.6 Distributed queue Dual-entry bus access Service802.9 Integrated Services802.11 Wireless LAN802.14 Cable TV802.15 Person Wireless

First, the actual application of the network classificationBlock data streams: FTP, TFTP, inventory updateNo direct human interaction requiredBandwidth is important, but not a critical factorInteractive Data Flow: Inventory queries, database

1. Network Segment (segmentation)In order to cope with the increase of the network caused by slow user response and traffic congestion, the large network is divided into a number of small network behavior. You can use devices such as routers,

Network Fundamentals  3. Which layer of the OSI 7-layer network model does the hub work on? DA, Transport layerB, Network layerC, Data link layerD, Physical layer 4. In the following options, the error about the protocol and the default port

Routing Protocol Overview : Through a routing protocol, many routes to the same target network are learned, and metric is placed in the routing table. Metric, the same time, put in the routing table. Through a variety of routing

WAN ( Wide Area Network ) WanThe data link layer, the physical layer, running in the OSI model.The protocols of the data link layer are mainly:HDLC (High-level Data Link control)PPP (Point-to-point Protocol-to-dot protocol)Frame-relay (Frame

Transport Layer: two important agreements TCP and the UDPTcp: Connection-oriented protocol: to establish a connection (three handshake of TCP) before transmitting user data Error checking Packet serialization Reliability

After learning rip, we know some basic routing protocols for routing, and now let's get to know a private protocol for Cisco: EIGRPEIGRP Routing Protocol(also known as Enhanced Internal Gateway Protocol Enhanced Interior Gateway Protocol)It is a