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VTP protocol on CBS switches

at@ps
Level 1
Level 1

Hi,

I have a CBS-350 series switch and want to check whether it supports the VTP protocol.

Do you know how I can do that?

Thanks,

6 Replies 6

Martin Aleksandrov
Cisco Employee
Cisco Employee

Hello,

Please be informed the CBS350 series switches do not support the VTP protocol.

Thanks

RBenke
Level 1
Level 1

Also be informed that if you're mixing CBS350's with Catalyst switches and you're using multiple VLANs, you need to set the VTP mode on the Catalysts to either Transparent or Off. A symptom of not doing so is that when a device on a non-native VLAN on the CBS350 issues a DHCP request that must traverse a Catalyst to reach the DHCP server, the response from the DHCP server will not be delivered back to the client and will instead "die" inside the Catalyst switch.

dadanggerry
Level 1
Level 1

So how can obtained vlan information from our Cisco 3750 as core switch to cbs350 as edge switch? If stated that will not support vtp anymore, we have 20 vlans from core and we need to recreate those vlans manually from CBS. switch?

RBenke
Level 1
Level 1

I've never troubled to educate myself on exactly what VTP does, but my experience is that turning it off has no effect on VLAN functionality between Catalysts and CBS350's. Our VLANs work just fine without it.

It's ok if u have not less than 5 vlans, but we have almost 20 vlans across all departments and production. There is no fun in creating 20 vlans in every switch or and in time newly created vlan from core will not replicate across all edge switches without vtp..just like you diployed unmanaged switches