HP FlexNetwork NJ5000, User Manual

Page: 179 / 475

167
•
Packets of VLAN 10, VLAN 20, VLAN 30, and VLAN 40 are forwarded along MSTI 1, MSTI 2,
MSTI 3, and MSTI 0, respectively.
•
Switch A and Switch B operate at the distribution layer. Switch C and Switch D operate at the
access layer. VLAN 10 and VLAN 20 are terminated on the distribution layer devices, and VLAN
30 is terminated on the access layer devices, so the root bridges of MSTI 1 and MSTI 2 are
Switch A and Switch B, respectively, and the root bridge of MSTI 3 is Switch C.
Figure 167 Network diagram
"Permit:" next to a link in the figure is followed by the VLANs the packets of which are permitted to
pass this link.
Configuration procedure
Configuring Switch A
1.
Configure an MST region:
a.
From the navigation tree, select
Network
>
MSTP
.
By default, the
Region
tab is displayed.
b.
Click
Modify
.
Figure 168 The region tab
c.
Set the region name to
example
.
d.
Set the revision level to
0
.
e.
Select
Manual
.
f.
Select
1
from the
Instance ID
list.
g.
Set the VLAN ID to
10
.
h.
Click
Apply
.
Permit: all VLAN
Permit:
VLAN 20, 40
Permit:
VLAN 10, 40
Permit: VLAN 30, 40
Permit:
VLAN 20, 40
Permit:
VLAN 10, 40
Switch A Switch B
Switch C Switch D