Dell PowerConnect J-EX4200-24T Software Manual page 1394

Dell PowerConnect J-Series Ethernet Switch Complete Software Guide for Junos OS
Table 174: Components of the Topology for Configuring BPDU Protection on J-EX Series Switches
Property
Switch 1 (Distribution Layer)
Switch 2 (Access Layer)
1322
Two J-EX Series switches are displayed in Figure 36 on page 1322. In this example, Switch
1 and Switch 2 are connected through a trunk interface. Switch 1 is configured for RSTP,
but Switch 2 has no spanning tree. Switch 2 has two access ports: interface
and interface ge-0/0/6 .
This example shows you how to configure BPDU protection on interface
interface ge-0/0/6 . When BPDU protection is enabled, the interfaces will transition to a
blocking state if BPDUs are received.
Figure 36: BPDU Protection Topology
Table 174 on page 1322 shows the components that will be configured for BPDU protection.
Settings
Switch 1 is connected to Switch 2 through a trunk interface. Switch 1 is configured
for RSTP.
Switch 2 has RSTP disabled and has these access ports that require BPDU
protection:
ge-0/0/5
ge-0/0/6
ge-0/0/5
ge-0/0/5 and