Can't connect CBS220 over newtork with a 2960

[at0ms.h3art]

Hello everyone, I need help with this case. We have purchased an 8-port CBS220 to include in our network with a 2960. I have never worked with a CBS before and am noticing that the configuration is quite different than the 2960. We have multiple VLANs configured on our network.

The CBS already has each port configured and locally it works without problems between computers. Port 8 is configured in trunk with each VLAN tagged and when connecting a PC I can reach the equipment without problems and connect to it from the web or SSH. When connecting the CBS to the 2960 between port 8 of the CBS and the Gi2 of the 2960 (Both configured in trunk) I observe that there is no response from the CBS or the equipment connected behind it.

I am probably missing something to configure, I share my configuration so you can determine what is missing

From CBS:

vlan default-vlan 20
!
management vlan ip-address 10.111.191.67 mask 255.255.255.192
ip default-gateway 10.111.191.126
!
management-vlan vlan 20
!
interface gi8
switchport trunk allowed vlan add 10,20,30,40,50,60,70,80,90,100
!

From 2960:

vlan 20
name Mission_critical_environment
!
interface GigabitEthernet0/2
switchport trunk allowed vlan 10,20,30,40,50,60,70,80,90,100
switchport mode trunk
media-type rj45
!
!
interface Vlan1
no ip address
no ip route-cache
shutdown
!
interface Vlan20
ip address 10.111.191.65 255.255.255.192
no ip route-cache
!
ip default-gateway 10.111.191.126
logging source-interface Vlan20
!

Hope somebody can help me with this! Thanks! 

[marce1000]

 - Why do you have vlan1 shutdown on the 2960 ,  don't do it , it is used for basic network negotiating protocols
 - What's the interface (trunk) status on the 2960 when connecting the cbs (from show int status (summary))
 - Check the logs on the 2960 when making the connection (and the cbs)

 M.

[at0ms.h3art]

Thanks for your reply! Turning off VLAN1 is for security reasons, I already solved the problem. Apparently the problem was vlan default-vlan 20 on the CBS.

I accessed via web browser, changed the default vlan to 1 and then created VLAN20 again in the console. Now the config look like this:

management vlan ip-address 10.111.191.67 mask 255.255.255.192
ip default-gateway 10.111.191.126
!
!
vlan 10
vlan 20
vlan 30
vlan 40
vlan 50
vlan 60
vlan 70
vlan 80
vlan 90
vlan 100
management-vlan vlan 20
!
!
!
!
!
!
interface gi8
switchport trunk allowed vlan add 10,20,30,40,50,60,70,80,90,100
!