Fortinet 5003 - Manual (Page 42)

FortiSwitch-5003A and 5003 Fabric and Base Backplane Communications Guide
42 01-30000-85717-20081205
Example active-passive redundant link configuration FortiGate-5140 fabric backplane communication
Example configuration for the FortiSwitch-5003A board in slot 2
The FortiSwitch-5003A board in slot 2 requires the same configuration settings as
the FortiSwitch-5003A board in slot 1 except that the priority values of both
spanning tree instances is set higher for the FortiSwitch-5003A board in slot 2:
config switch fabric-channel stp instance
edit 3
set priority 40960
set vlan-range 103-104
next
edit 5
set priority 40960
set vlan-range 105-106
end
Verifying the MSTP configuration of the FortiSwitch-5003A
board in slot 2
Enter diagnose spanning-tree mst-config fabric-channel to display
the FortiSwitch-5003A fabric channel MSTP configuration.
diagnose spanning-tree mst-config fabric-channel
MST Configuration Identification Information
Unit: Fabric
MST Configuration Name: tree_1
MST Configuration Revision: 1
MST Configuration Digest: 86a2448b88448fb7dbe0f8680e2d0fb5
Instance ID Mapped VLANs
____________________________________________________
3
103 104
5 105 106
To display the configuration of spanning tree instance 5 for the FortiSwitch-5003A
F7 interface enter:
diagnose spanning-tree instance fabric-channel 5 f7
MST Instance Information, Fabric-Channel:
Instance ID : 5
Mapped VLANs : 105 106
Switch Priority : 40960
Regional Root MAC Address : 00306407a1da
Regional Root Priority: 40960
Regional Root Path Cost: 0
Regional Root Port: slot-2/1
Remaining Hops: 20
Port Speed Cost Priority Role State
__________ ______ ________ _________ __________ __________
f7 10G
2000 128 DESIGNATED FORWARDING
Note: The priority values of both spanning tree instances should be higher on the
FortiSwitch-5003A board in slot 2 than on the board in slot 1 so that spanning tree directs
all traffic to the board in slot 1.