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Questions tagged [vtp]

For questions about the VLAN Trunking Protocol

2
votes
1answer
68 views

VTP does not update VLANs in switch

Switch 1 will be server and Switch 4 will be Client! Switch 1 configuration S1#show run Building configuration... Current configuration : 1451 bytes ! version 16.3.2 no service ...
1
vote
1answer
150 views

Sharing VTP Info Between two VTP Servers

Im trying to share info between two vtp servers these vtp server are connected using Etherchannel I have configured both on server mode, using the same domain and password, but the right one is not ...
1
vote
1answer
650 views

Combining VTP versions 2 and 3 in a network

Some of our switches only support VTP Version 2,   Can it be used on a simultaneous network of versions 2 and 3 together?
1
vote
1answer
334 views

Cisco VTP message ((lowest numbered VLAN interface found)

I have vtp server 6500 and vtp clients N5K all its working fine, except this message (lowest numbered VLAN interface found).. I dont really know if I have to take care on this message I mean its an ...
1
vote
1answer
393 views

VTP updates through router!

Can vtp client revisions be updated from another server switch that connect it only through a router? the two switches are in the same domain name
4
votes
1answer
784 views

Inter-VLAN Routing with VTP Server and Clients in Packet Tracer

I am new to the networking world and am attempting my first few projects in Packet Tracer. The first few were easy but I've gotten to a road block. My goal is to have three separate VLANs with at ...
2
votes
3answers
438 views

switch joining vtp domain fails with unknown error

I am trying to make a C2811 (yes, with switching ports, thank you very much) join a VTP domain. This fails with the syslog message VTP LOG RUNTIME: DRAM failed for domain This is rare, but google ...
1
vote
1answer
447 views

VTP Mode Automatically Changing to Server

Really hoping you can help me shed some light on some serious issues I've been experiencing on our production network. I'll give a quick background and explain the issue. Background: Our network ...
1
vote
2answers
149 views

Can't establish the connection for switch

I tried to establish an old switch in site, but VTP is not working. Show cdp neighbor Got the next switch with this command. Model: WS-C2960-24TC-L Version : 12.2(53)SE2 I tried to add the ...
1
vote
1answer
555 views

VTP not working in all switches

In server: C3650-48TS, 03.03.05SE SW01#sh vtp sta VTP Version capable : 1 to 3 VTP version running : 1 VTP Domain Name : TEST VTP Pruning Mode : ...
1
vote
2answers
1k views

VTP and VTP domain

Does a VTP server switch, with a VTP domain configured on it, advertise the VTP domain name to a client switch, so that the VTP domain is automatically configured on client switch?
3
votes
1answer
962 views

About “show interface switchport” output

The show interface switchport command shows a specific row Pruning VLANs Enabled. The field description is Lists the VLANs that are pruning-eligible but I cannot understand what that row is meaning.
2
votes
1answer
129 views

VLAN Trunking Protocol

Is VLAN Trunking Protocol enabled or disabled by default on all switches ? I have VTP Domain name showing nothing in command "" show VTP status "" therfore does this mean VTP is disabled by default ...
4
votes
1answer
2k views

Why am I not seeing a spanning tree instance?

i86bi-linux-l2-adventerprisek9-15.1a.bin on Cisco IOU via GNS3 I set up the following topology in GNS3: All I did was power on the devices, connect them and do a 'no shut'-command on their connected ...
2
votes
2answers
800 views

VTP: VLAN is not propagating

This Topology is simple but my VLAN is not propaganting. I'm following this Tutorial Multilayer Switch0 VTP Version : 2 Configuration Revision : 2 Maximum VLANs ...
1
vote
2answers
4k views

How to make two computers connected to a switch but in the different VLANs ping each other? [closed]

Here is my topology: PC3 - VLAN 10 PC0, PC4 - VLAN 20 The switch connected to a router is a Server Switch in VTP. The other two are clients. I know about router on the stick and PC3 and PC4 can ...
8
votes
2answers
3k views

Impact of removing VTP from a production network

We are planning to remove VTP from a production network that has RPVST running. This is at the core (a pair of Cisco 3750s) and we are trying to weigh the impact it has on the production network. In ...
5
votes
2answers
1k views

Any reason NOT to use VTP Pruning

I have inherited a network. I have 12 separate sites, all of which have at least 10 vlans. Each site is it's own VTP domain. I have an MPLS ethernet handoff into a switch at each site. From each ...
4
votes
1answer
216 views

Could MD5 digest be synchronized between VTP Server and Client if there is a discrepancy in Switch Versions?

The MD5 digest between the VTP Server located on Switch1 and the VTP Client located on Switch2 have been synchronized. Although the steps from this Q&A have been followed, a trunk has been ...
6
votes
2answers
8k views

How to synchronize MD5 digest between VTP Server and Client?

Follow up to this Q&A. According to one of the answers it should be possible to solve a MD5 digest mismatch by synchronizing username, password and domain between VTP Client and Server and ...
3
votes
2answers
509 views

VTP transfer deleted VLANs

I have a Cisco Catalyst 3750 and 2960. I created VTP server in 3750 and deleted all useless vlans. When I connect 2960 (VTP status: Client) to 3750 VTP transferred all vlans which I deleted before. ...
2
votes
2answers
667 views

VTP Pruning in Server Mode?

This question is a literal repost of the same question asked on The Cisco Learning Network. Answers are unique to Stack Exchange. Why does VTP pruning require the switch to be in server mode? I am ...
4
votes
1answer
1k views

Private VLAN in transparent mode

Why do we have to set up the switch in transparent mode when dealing with private VLANs?
4
votes
2answers
1k views

VTP domain name configuration

I believe only way to configure VTP domain is by CLI., Anyway i heard when we configure trunk from a switch A(which is in VTP domain (say cisco)) to another switch B which dont belong to any VTP ...
7
votes
1answer
4k views

VTP V3 Cisco Switch Error when creating new VLAN

While trying to create a new VLAN on a switch stack (that has many VLANs and many interconnected switches) I get an error about the switch not being the primary server for VLAN database. When running ...
21
votes
8answers
47k views

How can I force VTP clients to update their VLAN database from the VTP server, on Cisco devices?

I was doing some cisco exercises on configuring a vtp server and client, something I can't figure out is : I setup a vtp server, added my VLAN's I then took another switch that was attached to this ...