Unable to pass vlan traffic between cisco 500 g express switch and ws-c3560x-24 version 12.5(55) SE

[jomo frank]

Hello Expert,

I have a cisco 500 g express switch that is configure with a around 12 vlan . Vtp is configured on the switch (transparent mode) and I have 12 vlan configured manually. I have a few 2960 and 2950g switches on the network using vtp configure as server mode.

The 2950 g  and 2960 switches are all able to talk to the 500g express thru the respective vlans,  all the relevant vlan information configured on the

500 g express transfer to the 2950 and 2960 switches ever thing is working smoothly.

  Recently I introduced a c3560x-24 layer 3 switch and by default it is shown vtp v2 mode enable, vtp mode control server.

The problem is no traffic is been forward between the cisco 500g and c3560x-24 switch, also I notice no information relating to the 12 vlan configured

on the cisco 500 g is populating the cisco 3560x-24 switch.

I will be grateful if someone could problem a solution to this issue.

Thank you

[houtan haddadlarijani]

If your  trunk configuration will be correct, I think there may be various causes but the first things that come to my mind are: 

1- check VTP domain on your newly introduced switch. it might has not synchronized yet with other vtp server. 

2- If your VTP doamin has password, it must be set in your new switch

Rgrds

[jomo frank]

Hello Larijani,

The two switches were in place for approx. one week, hence they should have sync by now.

We do not have a vtp domain password .

Regards

[jomo frank]

Hello Expert,

I must add to the initial post that when we use cisco network assistant tool the c3560x-24 layer 3 switch is shown up as an unsupported device.

Regards

[jomo frank]

Hello Expert,

I found the error the port on cisco 500g that the c3560x-24 layer 3 switch was connected

was not functioning proper, I decided use a different port on cisco 500 g switch all both device are exchanging vlan traffic.

So all is working okay

Regards