Figure 47: Bpdu Protection Topology - Juniper JUNOS OS 10.4 - FOR EX REV 1 Manual

Complete Software Guide for Junos
Table 256: Components of the Topology for Configuring BPDU Protection on EX Series Switches
Property
Switch 1 (Distribution Layer)
Switch 2 (Access Layer)
1800
®
OS for EX Series Ethernet Switches, Release 10.4
devices. If BPDUs are received on a BPDU-protected interface, the interface transitions
to a blocking state and stops forwarding frames.
Two EX Series switches are displayed in Figure 47 on page 1800. 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 . When BPDU protection is enabled, the interfaces will transition to a
ge-0/0/6
blocking state if BPDUs are received.

Figure 47: BPDU Protection Topology

Table 256 on page 1800 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
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and