Alcatel-Lucent 6850-48 Network Guide
Quick Steps for Configuring MSTIs
Using 802.1Q 2005 Multiple Spanning Tree
page 12-18
OmniSwitch AOS Release 6 Network Configuration Guide
September 2009
Flat Mode MSTP with Superior MSTI 1 PPC Values
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.
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
CIST. As a result, the CIST BPDU will only contain MSTI information. See
for more information.