Pvst Configuration Example - HP 5120 EI Series Lan Switching Configuration Manual

Figure 29 MSTIs mapped to different VLANs
C
MSTI 1 mapped to VLAN 10
MSTI 3 mapped to VLAN 30

PVST configuration example

Network requirements
As shown in
• Device A and Device B work at the distribution layer. Device C and Device D work at the access
layer.
Configure PVST so that packets of different VLANs are forwarded along different spanning trees.
•
VLAN 10, VLAN 20, and VLAN 30 are terminated on the distribution layer devices, and VLAN 40
•
is terminated on the access layer devices. The root bridge of VLAN 10 and VLAN 20 is Device A,
that of VLAN 30 is Device B, and that of VLAN 40 is Device C.
Figure 30 Network diagram
A B
A B
Root bridge Normal link
Figure 30:
A
C
MSTI 0 mapped to VLAN 20
D C
MSTI 4 mapped to VLAN 40
102
B
D
D
Blocked link