Networking concepts

  • Components of network – router, switch, hub, bridge etc
  • Types of Network – LAN, MAN, WAN, VPN, PAN & Content Network
  • Defining Network requirements – NIC- Ethernet (CSMA/CD)
  • 10/100/1000 mbps DUPLEX (Half/Full/Auto) – Connecting Media – Coax.
  • 10 base 2T – UTP/STP – CAT 1/2/3..
  • Straight through/cross crimping (only details no practical)
  • Fiber optics – Single/Multimedia
  • 100 Base TX/FX etc – wireless communication.
  • Ethernet cabling Standard.
  • Connecting Devices
  • Repeater – Hub – Switch – Bridge – Topology – Bus/Star/Ring

OSI – Model

  • 7 Layers – Communication between the Layers (Encapsulation & De-encapsulation) – PDU.
  • Layer 2 – MAC/LLC – 802.3/802.2 (SAP/SNAP) /Ethernet II – Frames
  • Broadcast/Collision domain – point of -Hub/Switch/Router
  • L4 – 3way handshake – windowing – and about – Connectionless
  • Packet size [64B (mini) to 1518B (Max)]

TCP/IP Model & Ipv4 Addressing

  • All Layers of TCP/IP Compound with – OS
  • Application Layer – TFTP/FTP/SMTP/TELNET/SNMP/DNS
  • Transport Layer – TCP/UDP – TCP Segment Format
  • 3 way handshake/windowing – UDP segment Format
  • Internet Layer
  • IP datagram format – Protocol No. – TCP 6 – UDP 17
  • ICMP – ARP – RARP
  • Introduction to IP addressing – Class A/B/C/D/E
  • Private IP address – First OCTET range etc.

Subnetting

  • Default Subnet Mask
  • Class C Subnetting & Practice no. given
  • Class B Subnetting & problems
  • Class A Subnetting & problems

Introduction to IPV6

  • Introduction
  • Host Address Assignment
  • Unicast, Multicast and other Special ipV6 Addresses
  • Configuring ipV6 Routing and Routing Protocols
  • Translations between ipV4 and ipV6
  • Summary

Basic of Router & Configuration

  • Selection of Router & Cabling a Route
    • When Router used – LAN with WAN connect – to connect networks of different IP
    • Different interface of Router – AUI /S0/S1/AUX – console / BRI etc.
    • Cables used in different interfaces/purpose of interfaces
    • WAN interface cable – EIA/TIA – 232/449/530 – V.35 – X.21
    • Different CISCO series – modular/fixed – 10mbps/100 etc
    • Straight through between DTE & DCE

Different modes of operation & basic commands

  • Internal Components:
    • ROM – POST – BSL – ROM-MONITOR PRG – MINIIOS
    • Different interface of Router – AUI /S0/S1/AUX – console / BRI etc.
    • DRAM -Running Config
    • NVRAM – Startup Config
    • Flash MEM – IOS
  • Different Modes:
    • ROM Monitor – Reboot Mode – Setup – Exec Model
  • Exec Mode
    • User -Privilege – Global – Sub-configuration mode
    • Syntax/command to switch between modes
    • Assigning IP address for -E0-S0-S1
    • Enabling/disabling – console/privilege / vty password
    • Mold – command
    • Show Config / start / run / version / flash
  • Basic commands practice
    • Changing between modes – (user-privilege- Global-etc)
    • IP address configuration-E0-S0-S1
    • Password – enabling – encrypting it
    • Practice – motd – show commands – editing commands
    • Assigning host name (for Router)
  • Advanced Commands
    • Register value – X2102 – boot field value/purpose ROM monitor made – password breaking 8th/6th/13th bit of register value importance
    • Boot system flash/network/ROM – config-register (Changing register value) – etc command purpose Booting sequence – Backup & Recovery – CDP
    • Practice an above commands as well as following
    • Telnet – [ctrl+shift+6]x – disconnect – sh users /Sessions
    • Clear lines resume – [hostname resolving in telnet domain Enabling/disabling etc – no practical for this alone]
    • Overview of Cisco SDM (Security Device Manager)

IP Routing

  • IP Routing, Static Routing & Default Routing
    • IP routing – static routing – default- dynamic routing
    • Providing clock rate to up the link after identifying DCE by “Sh controllers” command
    • Commands/syntax – Static/default routing
  • Static Routing & Default Routing
    • Practical-session for Static & default routing
  • Dynamic Routing and RIP
    • Dynamic Routing – IGP & EGP.
    • IGP – RIP-OSPF – EGRP – EIGRP
    • Classes of Routing Protocol – Distance vector – Link State – Balanced hybrid
    • Role of Routing Protocol – builds/updates/selects & Routes the packet
    • Soluting for Routing loops – Max. loop count – split horizon – Route poison Reverse – Hold down Timer
    • Features of RIP – distance vector algorithm – RIP V1/V2 – load sharing – metric (depends – loop count)
    • Metric value depends – loop count – Ticks – delay – Reliability – cost – MTU – Bandwidth
    • Command – Router RIP Network
    • Sh IP route
    • Timer value for RIP– Update/Invalid/ hold down/flush Timer
  • RIP
    • Dynamic Routing – RIP Practical
  • Dynamic Routing EIGRP & OSPF
    • Limitations of distance vector algorithm
    • Features of EIGRP and its operations
    • Configuring EIGRP – “Auto-redistribution”
    • Verify and troubleshooting EIGRP
    • Features of OSPF and its operation
    • Configuring single area OSPF
    • Verify and troubleshoot OSPF
  • Access List
    • Purpose/advantage of Access-list
    • IP [-for a host – for a network/sub network].
    • Std IP access-list – wild card calculation
    • Extd IP access list
    • Switch port ACL,.
    • Step involved in creating access list
    • Applying access list at the interface – (inbound/outbound)
    • Named access-list for IP
    • Access-list in Telnet sessiont
  • IP standard Access List
    • Practical on
    • IP Std access-list
  • IP Extended Access List
    • IP Extd access-list, named access lists
  • NAT
    • Implement, Verify & Troubleshoot NAT
      • Explain the Basic Operation Of NAT
      • Using (including CLI/SDM)
      • Practicals on Static NAT, Dynamic NAT and PAT
      • Troubleshoot NAT issues

WAN Technologies

  • WAN Technologies- Leased Line
    • Leased line
    • P to P communication
    • HDLC & PPP protocol-features
    • Enabling HDLC & PPP
  • PPP Link
    • PPP layer & its explanation/role
    • PAP/CHAP role
    • Configuring PAP/CHAP using commands
  • VPN
    • Describe VPN technology
    • Importance Of VPN
    • Benefits & Role
    • Impact & Components
  • Frame-Relay
    • Packet Switched Network
    • Virtual circuit – DLCI – Access-link – CRI – FECN – BECN – LMI
    • Enabling Frame-relay
    • Inverse ARP
    • Configuring frame-relay for
    • Mesh Network
    • Star Network
    • Combination of above two