The STP information for each instance are carried over a M-Record payload which is inserted in the IST BPDU (one M-record per instance). The IST is your global STP instance for your region which can interact with other MST regions
To be sure there is consistency on all switches of the same region regarding the VLAN-instance mapping table, a global hash value representing this table is also added to the BPDU.
Thanks for the response, exactily what my problem is MSTP BPDU is not passing using CX-600 HUAWEI MPLS switch. but there is no issue when I run PVST+ on the Cisco switches The Per VLAN BPDU is passed to the switches connected to another MPLS switch.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...