PVST 실습

PC1
ip 10.10.10.1 255.255.255.0 10.10.10.254

PC2
ip 10.10.20.1 255.255.255.0 10.10.20.254

PC3
ip 10.10.10.2 255.255.255.0 10.10.10.254

PC4
ip 10.10.20.2 255.255.255.0 10.10.20.254

R4
conf t
vlan 10
name v10
vlan 20
name v20
exit
int fa 3/0
switchport mode access
switchport access vlan 10
int fa 3/1
switchport mode access
switchport access vlan 20
int fa 3/2
switchport mode trunk
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,10,20,1002-1005
int fa 3/12
switchport mode trunk
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,10,20,1002-1005
int fa 3/13
switchport mode trunk
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,10,20,1002-1005

R5
conf t
vlan 10
name v10
vlan 20
name v20
exit
int fa 3/0
switchport mode access
switchport access vlan 10
int fa 3/1
switchport mode access
switchport access vlan 20
int fa 3/2
switchport mode trunk
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,10,20,1002-1005
int fa 3/12
switchport mode trunk
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,10,20,1002-1005
int fa 3/13
switchport mode trunk
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,10,20,1002-1005

R2
conf t
vlan 10
name v10
vlan 20
name v20
exit
int fa 3/11
switchport mode trunk
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,10,20,1002-1005
int fa 3/12
switchport mode trunk
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,10,20,1002-1005
int fa 3/13
switchport mode trunk
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,10,20,1002-1005
int fa 3/15
switchport mode trunk
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,10,20,1002-1005

R3
conf t
vlan 10
name v10
vlan 20
name v20
exit
int fa 3/11
switchport mode trunk
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,10,20,1002-1005
int fa 3/12
switchport mode trunk
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,10,20,1002-1005
int fa 3/13
switchport mode trunk
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,10,20,1002-1005
int fa 3/14
switchport mode trunk
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,10,20,1002-1005

R1
conf t
vlan 10
name v10
vlan 20
name v20
exit
int fa 3/14
switchport mode trunk
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,10,20,1002-1005
int fa 3/15
switchport mode trunk
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,10,20,1002-1005
int vlan 10
ip addr 10.10.10.254 255.255.255.0
no shu
int vlan 20
ip addr 10.10.20.254 255.255.255.0
no shu

---

Root Switch가 R1일 때의 통신 경로

 

VLAN 10이 R2에 Root Switch / VLAN 10이 R3에 Secondary Switch / VLAN 20이 R3에 Root Switch / VLAN 20이 R2에 Secondary Switch일 때의 통신경로

R2

spanning-tree vlan 10 root primary
spanning-tree vlan 20 root secondary

R3

spanning-tree vlan 20 root primary
spanning-tree vlan 10 root secondary

추가해주면 위 사진의 통신경로가 설정된다