Juniper JUNOS OS 10.4 - FOR EX REV 1 Manual page 1901

Step-by-Step
Procedure
Results
Verification
Purpose
Action
Meaning
Copyright © 2010, Juniper Networks, Inc.
To configure BPDU protection:
Configure interface
ge-0/0/5
1.
[edit protocols rstp]
user@switch# set interface ge-0/0/5 edge
user@switch#set interface ge-0/0/6 edge
Configure BPDU protection on all edge ports:
2.
[edit protocols rstp]
user@switch# set bpdu-block-on-edge
Check the results of the configuration:
user@switch> show configuration protocols rstp
interface ge-0/0/5.0 {
edge;
}
interface ge-0/0/6.0 {
edge;
}
bpdu-block-on-edge;
To confirm that the configuration is working properly:
Displaying the Interface State Before BPDU Protection Is Triggered on page 1797
Verifying That BPDU Protection is Working Correctly on page 1798
Displaying the Interface State Before BPDU Protection Is Triggered
Before BPDUs are being received from the PCs connected to interface
interface ge-0/0/6 , confirm the interface state.
Use the operational mode command:
user@switch> show spanning-tree interface
Spanning tree interface parameters for instance 0
Interface Port ID
ge-0/0/0.0 128:513
ge-0/0/1.0 128:514
ge-0/0/2.0 128:515
ge-0/0/3.0 128:516
ge-0/0/4.0 128:517
ge-0/0/5.0 128:518
ge-0/0/6.0 128:519
[output truncated]
The output from the operational mode command
that and interface
ge-0/0/5.0
Chapter 71: Examples of Spanning-Tree Protocols Configuration
and interface
ge-0/0/6
Designated Designated
port ID bridge ID
128:513 32768.0019e2503f00
128:514 32768.0019e2503f00
128:515 32768.0019e2503f00
128:516 32768.0019e2503f00
128:517 32768.0019e2503f00
128:518 32768.0019e2503f00
128:519 32768.0019e2503f00
show spanning-tree interface
are designated ports in a forwarding state.
ge-0/0/6.0
on Switch 2 as edge ports:
and
ge-0/0/5
Port State Role
Cost
20000 BLK DIS
20000 BLK DIS
20000 BLK DIS
20000 FWD DESG
20000 FWD DESG
20000 FWD DESG
20000 FWD DESG
shows
1797