My 2 external switches , the ones that connect the inside, dmz and outside, have vlans configured, in one of them I saw this configuration and I hope some one can tell me about, because I don't uderstand tb-vlanX function because I never used it before
vlan 1 tb-vlan1 1002 tb-vlan2 1003 ! vlan 100 name TRANSITO ! vlan 200 name INTERNET ! vlan 300 name MED_EXT ! vlan 400 name TIREA ! vlan 500 name Gatedefenders ! vlan 1002 tb-vlan1 1 tb-vlan2 1003 ! vlan 1003 tb-vlan1 1 tb-vlan2 1002 parent 1005 backupcrf enable ! vlan 1004 bridge 1 stp type ibm ! vlan 1005 bridge 1 ip subnet-zero vtp mode transparent ! spanning-tree extend system-id