Juniper EX9200 Features Manual page 238

Spanning-Tree Protocols Feature Guide for EX9200 Switches
Results
Verification
Purpose
Action
Meaning
Purpose
222
Check the results of the configuration:
user@switch> show configuration protocols rstp
interface ge-0/0/5 {
edge;
}
interface ge-0/0/6 {
edge;
}
bpdu-block-on-edge;
To confirm that the configuration is working properly:
Displaying the Interface State Before BPDU Protection Is Triggered on page 222
Verifying That BPDU Protection Is Working Correctly on page 222
Displaying the Interface State Before BPDU Protection Is Triggered
Before BPDUs can be received from PCs connected to 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-0/0/0 128:513
ge-0/0/1 128:514
ge-0/0/2 128:515
ge-0/0/3 128:516
ge-0/0/4 128:517
ge-0/0/5 128:518
ge-0/0/6 128:519
[output truncated]
The output from the operational mode command
that ge-0/0/5 and interface
Verifying That BPDU Protection Is Working Correctly
In this example, the PCs connected to Switch 2 start sending BPDUs to interface
and interface . Verify that BPDU protection is working on the interfaces.
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
ge-0/0/6 are ports in a forwarding state.
and interface
ge-0/0/5
Port State
Cost
20000 BLK DIS
20000 BLK DIS
20000 BLK DIS
20000 FWD DESG
20000 FWD DESG
20000 FWD DESG
20000 FWD DESG
shows
ge-0/0/5
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