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Cap4 implementing vtp


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Cap4 implementing vtp

  1. 1. Implement VTP LAN Switching and Wireless – Chapter 4
  2. 2. Objectives <ul><li>Explain the role of VTP in a converged switched network </li></ul><ul><li>Describe the operation of VTP: VTP domains, VTP Modes, VTP Advertisements, and VTP Pruning . </li></ul><ul><li>Configure VTP on the switches in a converged network. </li></ul>
  3. 3. What Is an End-to-End VLAN? <ul><ul><li>Users are grouped into VLANs independent of physical location. </li></ul></ul><ul><ul><li>If users are moved within the campus, their VLAN membership remains the same . </li></ul></ul>
  4. 5. VTP Review <ul><li>VTP (VLAN Trunking Protocol) is used to distribute and synchronize information about VLANs that are configured throughout a switched network. </li></ul><ul><li>Switches transmit VTP messages only on 802.1Q and ISL trunks . </li></ul><ul><li>Note : VTP is not required to configure trunking between switches, but is used to simplify VLAN management. </li></ul><ul><li>VTP Server </li></ul><ul><ul><li>This has a default VTP mode. VLANs can be created, modified, and deleted. </li></ul></ul><ul><li>VTP Client </li></ul><ul><ul><li>This behaves like a VTP server without the ability to create, change, or delete VLANs. </li></ul></ul><ul><li>VTP Transparent </li></ul><ul><ul><li>Switches in the VTP Transparent mode do not participate in VTP. </li></ul></ul>
  5. 6. VTP Operation <ul><ul><li>VTP advertisements are sent as multicast frames. </li></ul></ul><ul><ul><li>VTP servers and clients are synchronized to the latest revision number. </li></ul></ul><ul><ul><li>VTP advertisements are sent every 5 minutes or when there is a change. </li></ul></ul>
  6. 7. Describe the Operation of VTP
  7. 8. Describe the Operation of VTP: Domain
  8. 9. Describe the Operation of VTP: Advertisements
  9. 10. Operation of VTP: Modes
  10. 11. Operation of VTP: Modes
  11. 12. Operation of VTP: pruning functions
  12. 13. VTP Pruning <ul><li>Uses bandwidth more efficiently by reducing unnecessary flooded traffic </li></ul><ul><li>Example: Station A sends broadcast; broadcast flooded only toward any switch with ports assigned to the red VLAN </li></ul><ul><li>Switch(config)# vtp pruning </li></ul>Pruning Disabled Pruning Enabled
  13. 14. Configure VTP on the Switches <ul><li>Switch#vlan database </li></ul><ul><li>Switch(vlan)#vtp v2-mode </li></ul><ul><li>Switch(vlan)#vtp domain cisco </li></ul><ul><li>Switch(vlan)#vtp {client | server | transparent} </li></ul>
  14. 15. Configure VTP on the Switches in a Converged Network <ul><li>Identify and troubleshoot common VTP configuration problems </li></ul>
  15. 16. Reviewing VTP <ul><li>DLSwitchA# show vtp status </li></ul><ul><li>VTP Version : 2 </li></ul><ul><li>Configuration Revision : 0 </li></ul><ul><li>Maximum VLANs supported locally : 1005 </li></ul><ul><li>Number of existing VLANs : 5 </li></ul><ul><li>VTP Operating Mode : Server </li></ul><ul><li>VTP Domain Name : </li></ul><ul><li>VTP Pruning Mode : Disabled </li></ul><ul><li>VTP V2 Mode : Disabled </li></ul><ul><li>VTP Traps Generation : Disabled </li></ul><ul><li>MD5 digest : 0xB7 0x5D 0xB6 0x6D 0xE0 0xC0 0x3E 0x2E </li></ul><ul><li>Configuration last modified by at 0-0-00 00:00:00 </li></ul><ul><li>Local updater ID is on interface Vl1 (lowest numbered VLAN interface found) </li></ul><ul><li>Since no VLAN configurations were made, all settings will be the defaults. Notice the VTP mode is Server . </li></ul><ul><li>The number of existing VLANs is the five built-in (reserved) VLANs. </li></ul><ul><ul><li>VLAN 1, 1002, 1003, 1004, 1005 </li></ul></ul>
  16. 17. Summary <ul><li>VTP is a Cisco proprietary protocol used to exchange VLAN information across trunk links. </li></ul><ul><li>A switch can be in one of 3 VTP operating modes </li></ul><ul><ul><li>Client </li></ul></ul><ul><ul><ul><li>Cannot create, modify or delete VLAN </li></ul></ul></ul><ul><ul><li>Server </li></ul></ul><ul><ul><ul><li>Can create, modify & delete VLAN </li></ul></ul></ul><ul><ul><li>Transparent </li></ul></ul><ul><ul><li>Can create, modify, & delete LOCAL VLAN </li></ul></ul><ul><ul><li>Forwards VTP advertisements. </li></ul></ul>
  17. 18. Summary <ul><li>VTP pruning </li></ul><ul><ul><li>Limits unnecessary dissemination of VLAN information. </li></ul></ul><ul><li>Verify VTP configuration </li></ul><ul><ul><li>Show VTP status </li></ul></ul><ul><ul><li>Show VTP counters </li></ul></ul><ul><ul><li>Show interfaces trunk </li></ul></ul>