#CISCO MAC ADDRESS TABLE ASSOCIATED VLAN HOW TO#
The following example shows how to configure the switch as VTP transparent: Router# configure terminal The following example shows how to configure the switch as a VTP client: Router# configure terminal The following example shows how to configure the switch as a VTP server: Router# configure terminal You can create, modify, and delete VLANs on a switch in VTP transparent mode.įor detailed information on VTP, see the following web link: Or version 3, transparent switches do forward VTP advertisements that they receive from other switches through their trunk A VTP transparent switch does not advertise its VLANĬonfiguration and does not synchronize its VLAN configuration based on received advertisements. VTP transparent: VTP transparent switches do not participate in VTP. VLANs are configured on another switch in the domain that is in server mode. VTP client: A VTP client behaves like a VTP server and transmits and receives VTP updates on its trunks, but you cannot create,Ĭhange, or delete VLANs on a VTP client. Their VLAN configurations with other switches based on advertisements received over trunk links.VTP server is the default VTP servers advertise their VLAN configurations to other switches in the same VTP domain and synchronize VTP Version 3 should be configured on each switch manually including the VTP VTP server: In VTP server mode, you can create, modify, and delete VLANs, and specify other configuration parameters (suchĪs the VTP version) for the entire VTP domain. You make global VLAN configuration changes for the domain. Or switch stacks under the same administrative responsibility sharing the same VTP domain name. VTP domain: A VTP domain (also called a VLAN management domain) consists of one switch or several interconnected switches
You should understand the following concepts for configuring VTP. Where multiple updates to the VLAN database occur simultaneously on switches in the same domain, which would result in an Without VTP, you cannot send information about VLANs to other switches.VTP is designed to work in an environment where updatesĪre made on a single switch and are sent through VTP to other switches in the domain. Using VTP, you can make configuration changesĬentrally on one or more switches and have those changes automatically communicated to all the other switches in the network. Several problems, such as duplicate VLAN names, incorrect VLAN-type specifications, and security violations.īefore you create VLANs, you must decide whether to use VTP in your network. VTP minimizes misconfigurations and configuration inconsistencies that can cause Renaming of VLANs on a network-wide basis. VTP is a Layer 2 messaging protocol that maintains VLAN configuration consistency by managing the addition, deletion, and Router(config-if)# switchport access vlan 2 Router(config-if)# interface gigabitethernet 0/1/1 Router(config-if)# switchport access vlan 1 Router(config-if)# switchport mode access Router(config-if)# interface gigabitethernet 0/1/0 Use the show vlan internal usage command to check for the range of internal VLANS.Įxample: VLAN configuration Router# configure terminal
By default, these are the VLAN IDs from 2350 - 2449. Each VLAN is considered a logical network, and packets destined for stations that do notīelong to the VLAN must be forwarded through a router. Any switch port can belong to a VLAN, and unicast, broadcast, and multicast packets are forwarded and flooded Have the same attributes as physical LANs, but you can group end stations even if they are not physically located on the same Is logically segmented by function, project team, or application, without regard to the physical locations of the users. Each VLAN is considered a logical network, and packetsĭestined for stations that do not belong to the VLAN must be forwarded through a router. Packets are forwarded and flooded only to end stations in the VLAN. Any switch port can belong to a VLAN, and unicast, broadcast, and multicast VLANs have the same attributes as physical LANs, but you can group end stations even if theyĪre not physically located on the same LAN segment. Configuring MAC Address Table ManipulationĪ VLAN is a switched network that is logically segmented by function, project team, or application, without regard to the.This chapter contains the following sections:
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