Alcatel-Lucent 060321-10, Rev. B, Справочное руководство CLI

Страница: 201 / 2354

Distributed Spanning Tree Commands spantree cist auto-edge
OmniSwitch CLI Reference Guide March 2011 page 5-59
spantree cist auto-edge
Configures whether or not Spanning Tree automatically determines the operational edge port status of a
port or a link aggregate of ports for the flat mode Common and Internal Spanning Tree (CIST).
spantree cist {port slot/port[-port2] | linkagg linkagg_id [-linkagg_id2]} auto-edge {enable | disable}
Syntax Definitions
slot/port[-port2] The slot number and port number of the physical port. Use a hyphen to
specify a range of ports (4/1-8)
.
linkagg_id[-linkagg_id2] The link aggregate ID number. Use a hyphen to specify a range of IDs.
enable Spanning Tree automatically determines edge port status.
disable Spanning Tree does not automatically determine edge port status.
Defaults
By default, automatic edge port status configuration is enabled.
Platforms Supported
OmniSwitch 10K
Usage Guidelines
•
This command only applies to the CIST instance regardless of which operating mode (flat or per-
VLAN) is active for the switch.
•
If the switch is running in the per-VLAN mode when this command is used, the specified edge port
status for the port is not active for the CIST instance until the switch is running in the flat Spanning
Tree mode.
•
The administrative edge port status is used to determine if a port is an edge or non-edge port when
automatic edge port configuration (
auto-edge ) is disabled for the port. However, if auto-edge is
enabled for the port, then the administrative status is overridden.
•
Rapid transition of a designated port to forwarding can only occur if the connection type of the port is
defined as point to point or an edge port. Rapid transition of an alternate port role to a root port role is
not affected by the port connection type definition.
•
Configure ports that connect to a host (PC, workstation, server, and so on.) as edge ports to avoid
unnecessary topology changes when these ports go active. This also prevents the flushing of learned
MAC addresses on these ports if a topology change occurs as a result of another non-edge port going
active. If an edge port receives a BPDU, it operationally reverts back to a no point to point
connection type.
Examples
-> spantree cist linkagg 15 auto-edge enable
-> spantree cist linkagg 10-12 auto-edge disable
-> spantree cist port 8/23 auto-edge disable
-> spantree cist port 2/2-5 auto-edge enable