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Configuring STP Port Parameters
To change the port Spanning Tree mode for the flat mode instance regardless of which mode (per-VLAN
or flat) is active for the switch, use the spantree cist connection command. For example, the following
command configures the connection type for port 1/24 for the flat mode instance:
-> spantree cist port 1/24 connection ptp
Note. The spantree vlan connection and spantree cist connection commands only configure one port at
a time.
Connection Type on Link Aggregate Ports
Physical ports that belong to a link aggregate do not participate in the Spanning Tree Algorithm. Instead,
the algorithm is applied to the aggregate logical link (virtual port) that represents a collection of physical
ports. To change the port connection type for a link aggregate, use the spantree vlan connection or the
spantree cist connection command described above, but specify a link aggregate control (ID) number
instead of a slot and port. For example, the following command defines the connection type for the link
aggregate 10 association with VLAN 755:
-> spantree vlan 755 linkagg 10 connection autoptp
For more information about configuring an aggregate of ports, see
Aggregation,"
and
Chapter 7, "Configuring Dynamic Link Aggregation."
Configuring the Edge Port Status
There are two methods for determining the edge port status for a port or link aggregate:
•
Configuring the automatic edge (auto edge) port status. The status (enabled or disabled) of this Span-
ning Tree port parameter specifies whether or not the Spanning Tree automatically determines the
operational edge port status for a port. This method is enabled by default.
•
Configuring the administrative edge (admin edge) port status. The status (enabled or disabled) of this
Spanning Tree port parameter is used to determine the edge port status when the auto edge port status
is disabled. This method is disabled by default.
To configure the edge port status for the flat mode instance regardless of which mode (per-VLAN or flat)
is active for the switch, use the
command. For example:
-> spantree cist port 8/23 auto-edge enable
-> spantree cist port 8/23 admin-edge disable
To configure the edge port status for a VLAN instance regardless of which mode (per-VLAN or flat) is
active for the switch, use the
command. For example:
-> spantree vlan 10 port 8/23 auto-edge enable
-> spantree vlan 10 port 8/23 admin-edge disable
Note. If auto-edge is enabled on a port, then the admin-edge value is overridden.
page 5-42
spantree cist auto-edge
spantree vlan auto-edge
OmniSwitch AOS Release 7 Network Configuration Guide
Configuring Spanning Tree Parameters
Chapter 6, "Configuring Static Link
command or the
spantree cist admin-edge
command or the
spantree vlan admin-edge
March 2011
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