Alcatel-Lucent 060321-10, Rev. B, Cli Reference Manual

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Distributed Spanning Tree Commands spantree cist admin-edge
OmniSwitch CLI Reference Guide March 2011 page 5-55
spantree cist admin-edge
Configures the administrative edge port status for 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]} admin-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 Enables the administrative edge port status for the specified port-CIST
instance.
disable Disables the administrative edge port status for the specified port-CIST
instance.
Defaults
By default, the administrative edge port status is disabled (off).
Platforms Supported
OmniSwitch 10K
Usage Guidelines
•
This command only applies to the port connection type for the CIST instance regardless of which oper-
ating mode (flat or per-VLAN) is active on the switch.
•
If the switch is running in the per-VLAN mode when this command is used, the specified edge port
status is not active for the CIST instance until the switch is configured to run 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 port connection type is defined
as a 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.