Quick Steps for Configuring MSTIs
CIST-0
MSTI-1
Note that of the two data paths available to MSTI 1 VLANs, one is still blocked because it is seen as
redundant for that instance. In addition, the CIST data path still 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 will only contain MSTI information. See
page 2-4
for more information.
page 2-18
3/1
VLAN 100
4/2
VLAN 150
4/8
VLAN 200
2/12
VLAN 250
Switch A
Flat Mode MSTP with Superior MSTI 1 PPC Values
OmniSwitch 6800/6850/9000 Network Configuration Guide
Using 802.1Q 2005 Multiple Spanning Tree
2/1
VLAN 100
5/1
||
VLAN 150
5/2
VLAN 200
3/6
||
VLAN 250
Switch B
CIST-0
MSTI-1
"How MSTP Works" on
March 2008