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.Subset Advts Transmitted Number of subset advertisements sent by this switch on its trunkports.Subset advertisements contain all the information for one ormore VLANs.Request Advts Transmitted Number of advertisement requests sent by this switch on its trunkports.Advertisement requests normally request information on allVLANs.They can also request information on a subset of VLANs.No.of Configuration Revision Number of revision errors.ErrorsWhenever you define a new VLAN, delete an existing one, suspendor resume an existing VLAN, or modify the parameters on anexisting VLAN, the configuration revision number of the switchincrements.Revision errors increment whenever the switch receives anadvertisement whose revision number matches the revisionnumber of the switch, but the MD5 digest values do not match.This error means that the VTP password in the two switches isdifferent or that the switches have different configurations.These errors mean that the switch is filtering incomingadvertisements, which causes the VTP database to becomeunsynchronized across the network.Catalyst 2900 Series XL and Catalyst 3500 Series XL Command Reference78-12155-042-191Chapter 2 Cisco IOS Commandsshow vtpTable 2-6 Show VTP Counters Field Descriptions (continued)Field DescriptionNo.of Configuration Digest Number of MD5 digest errors.ErrorsDigest errors increment whenever the MD5 digest in the summarypacket and the MD5 digest of the received advertisementcalculated by the switch do not match.This error usually meansthat the VTP password in the two switches is different.To solvethis problem, make sure that the VTP password on all switches isthe same.These errors mean that the switch is filtering incomingadvertisements, which causes the VTP database to becomeunsynchronized across the network.No.of version 1 Summary Errors Number of version 1 errors.Version 1 summary errors increment whenever a switch in VTPversion 2 mode receives a VTP version 1 frame.These errors meanthat at least one neighboring switch is either running VTP version1 or VTP version 2 with version 2-mode disabled.To solve thisproblem, change the configuration of the switches in VTP version2-mode to disabled.Join Transmitted Number of VTP pruning messages transmitted on the trunk.Join Received Number of VTP pruning messages received on the trunk.Summary Advts Received from Number of VTP summary messages received on the trunk fromnon-pruning-capable device devices that do not support pruning.This is an example of output from the show vtp status command.Table 2-7 describes each field in thedisplay.Switch> show vtp statusVTP Version : 2Configuration Revision : 1Maximum VLANs supported locally : 68Number of existing VLANs : 7VTP Operating Mode : ServerVTP Domain Name : test1VTP Pruning Mode : DisabledVTP V2 Mode : DisabledVTP Traps Generation : DisabledMD5 digest : 0x3D 0x02 0xD4 0x3A 0xC4 0x46 0xA1 0x03Configuration last modified by 172.20.130.52 at 3-4-93 22:25:Catalyst 2900 Series XL and Catalyst 3500 Series XL Command Reference78-12155-042-192Chapter 2 Cisco IOS Commandsshow vtpTable 2-7 Show VTP Status Field DescriptionsField DescriptionVTP Version Displays the VTP version operating on the switch.By default,Catalyst 2900 XL and Catalyst 3500 XL switches implementversion 1 but can be set to version 2.Configuration Revision Configuration revision number on this switch.Maximum VLANs Supported Maximum number of VLANs supported locally.LocallyNumber of Existing VLANs Number of existing VLANs.VTP Operating Mode Displays the VTP operating mode, which can be server, client, ortransparent.Server: a switch in VTP server mode is enabled for VTP and sendsadvertisements.You can configure VLANs on it.The switchguarantees that it can recover all the VLAN information in the VTPdatabase from nonvolatile storage after reboot.By default, everyswitch is a VTP server.Client: a switch in VTP client mode is enabled for VTP, can sendadvertisements, but does not have enough nonvolatile storage tostore VLAN configurations.You cannot configure VLANs on it.When a VTP client starts up, it does not transmit VTPadvertisements until it receives advertisements to initialize itsVLAN database.Transparent: a switch in VTP transparent mode is disabled for VTP,does not transmit advertisements or learn from advertisements sentby other devices, and cannot affect VLAN configurations on otherdevices in the network.The switch receives VTP advertisementsand forwards them on all trunk ports except the one on which theadvertisement was received.The configuration of multi-VLANports causes the switch to automatically enter transparent mode.Note Catalyst 2912MF, 2924M, and Catalyst 3500 XL switchessupport up to 250 VLANs.All other Catalyst 2900 XLswitches support up to 64 VLANs.If you define more than250 or 64 or if the switch receives an advertisement thatcontains more than 250 or 64 VLANs, the switchautomatically enters VTP transparent mode and operateswith the VLAN configuration preceding the one that sent itinto transparent mode.VTP Domain Name Name that identifies the administrative domain for the switch.VTP Pruning Mode Displays whether pruning is enabled or disabled.Enabling pruningon a VTP server enables pruning for the entire managementdomain.Pruning restricts flooded traffic to those trunk links thatthe traffic must use to access the appropriate network devices.VTP version 2 Mode Displays if VTP version 2 mode is enabled.All VTP version 2switches operate in version 1 mode by default.Each VTP switchautomatically detects the capabilities of all the other VTP devices.A network of VTP devices should be configured to version 2 onlyif all VTP switches in the network can operate in version 2 mode.Catalyst 2900 Series XL and Catalyst 3500 Series XL Command Reference78-12155-042-193Chapter 2 Cisco IOS Commandsshow vtpTable 2-7 Show VTP Status Field Descriptions (continued)Field DescriptionVTP Traps Generation Displays whether VTP traps are transmitted to a networkmanagement station.MD5 Digest A 16-byte checksum of the VTP configuration.Configuration Last Modified Displays the date and time of the last configuration modification.Displays the IP address of the switch that caused the configurationchange to the database.Related Commands Command Descriptionclear vtp counters Clears the VTP and pruning counters.vtp Configures the VTP mode [ Pobierz całość w formacie PDF ]