SW2#sh span int fa0/2 detail
no spanning tree info available for FastEthernet0/2
SW2#sh run int fa0/2
Building configuration...
Current configuration : 128 bytes
!
interface FastEthernet0/2
description to R2
switchport access vlan 100
switchport mode access
spanning-tree portfast
end
SW2#sh vlan brief | in N100
1000 VLAN1000 active
SW2#sh run | in switchport backup
SW2#
как удалось отключить spanning-tree?
ответ: см. private-vlan
SW2#sh vla id 100
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
100 VLAN0100 active Fa0/2, Fa0/19, Fa0/20, Fa0/21
Fa0/24, Po1
VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
100 enet 100100 1500 - - - - - 0 0
Remote SPAN VLAN
----------------
Disabled
Primary Secondary Type Ports
------- --------- ----------------- ------------------------------------------
100 1000 community
100 2000 community Fa0/4
100 3000 isolated Fa0/6
SW2#