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S
PANNING
T
REE
C
OMMANDS
4-193
point-to-point link, while a half-duplex interface is assumed to be on
a shared link.
• RSTP only works on point-to-point links between two bridges. If you
designate a port as a shared link, RSTP is forbidden.
Example
spanning-tree protocol-migration
This command re-checks the appropriate BPDU format to send on the
selected interface.
Syntax
spanning-tree
protocol-migration
interface
•
interface
-
ethernet
unit
/
port
- unit - Stack unit. (Always unit 1)
- port - Port number. (Range: 1-28)
-
port-channel
channel-id
(Range: 1-8)
Command Mode
Privileged Exec
Command Usage
If at any time the switch detects STP BPDUs, including Configuration
or Topology Change Notification BPDUs, it will automatically set the
selected interface to forced STP-compatible mode. However, you can
also use the
spanning-tree protocol-migration
command at any time
to manually re-check the appropriate BPDU format to send on the
selected interfaces (i.e., RSTP or STP-compatible).
Example
Console(config)#interface ethernet 1/5
Console(config-if)#spanning-tree link-type point-to-point
Console#spanning-tree protocol-migration eth 1/5
Console#
Summary of Contents for 6128L2
Page 2: ......
Page 21: ...CONTENTS xvii Glossary Index ...
Page 22: ...CONTENTS xviii ...
Page 26: ...TABLES xxii ...
Page 40: ...INTRODUCTION 1 10 ...
Page 54: ...INITIAL CONFIGURATION 2 14 ...
Page 193: ...PORT CONFIGURATION 3 139 Figure 3 61 Displaying Etherlike and RMON Statistics ...
Page 257: ...QUALITY OF SERVICE 3 203 Figure 3 90 Configuring Policy Maps ...
Page 313: ...COMMAND GROUPS 4 13 PE Privileged Exec VC VLAN Database Configuration ...
Page 592: ...TROUBLESHOOTING B 4 ...
Page 605: ......