Dell PowerConnect J-EX4200-24T Software Manual page 1370

Dell PowerConnect J-Series Ethernet Switch Complete Software Guide for Junos OS
Table 172: Components of the Topology for Configuring MSTP on J-EX Series Switches
Property
Switch 1
Switch 2
1298
Figure 34: Network Topology for MSTP
The interfaces shown in Table 172 on page 1298 will be configured for MSTP.
NOTE: You can configure MSTP on logical or physical interfaces. This example
shows MSTP configured on logical interfaces.
Settings
The following ports on Switch 1 are connected in this way:
ge-0/0/9 is connected to Switch 2
is connected to Switch 4
ge-0/0/13
is connected to Switch 3
ge-0/0/11
The following ports on Switch 2 are connected in this way:
is connected to Switch 1
ge-0/0/14
is connected to Switch 3
ge-0/0/18