Mstp Basic Concepts - HP 6125G Configuration Manual

MSTP basic concepts

Figure 15 shows a switched network that comprises four MST regions, each MST region comprising four
MSTP devices.
Figure 15 Basic concepts in MSTP
VLAN 1
VLAN 2
Other VLANs
MST region 1
MST region 2
VLAN 1
VLAN 2
Other VLANs
Figure 16 Network diagram and topology of MST region 3
To MST region 4
Device A
Device C
Figure 16 shows the networking topology of MST region 3.
MSTI 1
MSTI 2
MSTI 0
MSTI 1
MSTI 2
MSTI 0
MST region 3
VLAN 1 MSTI 1
VLAN 2&3 MSTI 2
Other VLANs MSTI 0
VLAN 1
VLAN 2
Other VLANs
VLAN 1
CST
VLAN 2&3
Other VLANs
A
Device B
C
A
C
Device D
58
MSTI 1
MSTI 2
MSTI 0
MST region 4
MST region 3
MSTI 1
MSTI 2
MSTI 0
B A
D C
MSTI 1
B
D
MSTI 0
Topology of MSTIs in MST region 3
B
D
MSTI 2
Regional root
MSTI