Configuring Spanning Tree Parameters
Sample MSTI Configuration
OmniSwitch AOS Release 7 Network Configuration Guide
June 2013
page 6-51
.
Flat Mode MSTP with Superior MSTI 1 PPC Values
Note.
Of the two data paths available to MSTI 1 VLANs, one is blocked because it is seen as redundant
for that instance. In addition, the CIST data path remains available for CIST VLAN traffic.
Another solution to this scenario is to assign all VLANs to an MSTI, leaving no VLANs controlled by the
CIST. As a result, the CIST BPDU contains only MSTI information. See
for more information.
2/1
3/1
4/2
4/8
5/2
5/1
||
VLAN 100
VLAN 250
MSTI-1
VLAN 200
VLAN 150
CIST-0
VLAN 100
VLAN 250
MSTI-1
VLAN 200
VLAN 150
CIST-0
||
2/12
3/6
Switch A
Switch B