User's Manual

Table Of Contents
230
Users Manual of CS-6306R
The main function of the compatible mode is to create the MST area for switches
and other MSTP-running switches. In actual networking, make sure that the switch
has the same configuration name and the same edit number. It is recommended to
configure switches running other MSTP protocols to
the CIST root, ensuring that the
switch enters the compatible mode by receiving message.
If the MST-compatible mode is not activated, the switch will not resolve the whole
BPDU-compatible content and take the content as the common RSTP BPDU. In
this way, the switch cannot be in the same area with the MST-compatible switch
that it connects.
A port in compatible mode cannot automatically resumes to send standard MST
BPDU even if the compatible mode is shut down in global configuration mode. In
this case, run migration-check.
Restart the protocol conversion check.
Check the MSTP message.
19.2.3 MSTP Configuration Task
19.2.3.1 Default MSTP Configuration
Attribute Default Settings
STP mode SSTP (PVST, RSTP and MSTP is not
started)
Area name Character string of MAC address
Area edit level 0
MST configuration list All VLANs are mapped in CIST (MST00).
Spanning-tree priority (CIST and all MSTI)
32768
Spanning-tree port priority (CIST and all
MSTI)
128
Path cost of the spanning-tree port (CIST
and all MSTI)
1000 Mbps: 20000
100 Mbps: 200000
10 Mbps: 2000000
Hello Time 2 seconds
Forward Delay 15 seconds
Maximum-aging Time 20 seconds
Maximum hop count 20