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VTP doesn't work in some dot1q trunk

me_noori
Level 1
Level 1

Hello,

I have 6807xl box and I configure all ports of it it as L2 dot1q trunk and I have so many 3750 switches that they connected to the 6807xl  as L2 dot1q trunk.In all of them VLAN 1 as management VLAN and every thing is OK.I checked there is one VTP server with higher revision number and the other switch is client with vtp revision number little or equal to the VTP server revision number, VTP domain name and VTP password are the same in all switch.But VTP in some trunk doesn't work properly.I checked through show interface counter protocol stat ,in some trunk that VTP doesn't work properly the show is like this 

 

3750e # show interfaces tenGigabitEthernet 3/0/1 counters protocol status Protocols allocated: TenGigabitEthernet3/0/1: Other, IP, CDP

 

3750e # sh running-config int ten 3/0/1

description DES TO-6807-RAHIMIAN-TENGIG1/1

switchport trunkencapsulation dot1q

switchport mode trunkend

 

and the other side show is like this

 

6807xl # sh int tenGigabitEthernet 1/14 counter protocol status Protocols allocated:

TenGigabitEthernet1/14: Other, IP, Spanning Tree, CDP, VTP, DTP, UDLD

 

6807xl # show run int tengig1/14

description TO-3750e-TEN3/0/1

switchport switchport mode trunk

mtu 1510

end

as seen from show I have VTP only in one side.So how can I configure the 3750e to have VTP in the show int ten 3/0/1 counter protocol stat 

 

 

 

 

 

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