Juniper EX9200 Features Manual page 121

Table 12: Spanning-Tree Protocol Configuration Parameters (continued)
Field Function
Interface Name Specifies an interface for the spanning-tree protocol.
Cost Specifies the link cost to determine which bridge is
the designated bridge and which interface is the
designated interface.
Priority Specifies the interface priority to determine which
interface is elected as the root port.
Disable Port Disables the spanning-tree protocol on the interface.
NOTE: This option
is not supported on
EX4300 switches.
Edge Configures the interface as an edge interface. Edge
interfaces immediately transition to a forwarding
state.
No Root Port Specifies an interface as a spanning-tree designated
port. If the bridge receives superior STP BPDUs on a
root-protected interface, that interface transitions to
a root-prevented STP state (inconsistency state) and
the interface is blocked. This blocking prevents a
bridge that should not be the root bridge from being
elected the root bridge. When the bridge stops
receiving superior STP BPDUs on the root-protected
interface, interface traffic is no longer blocked.
Interface Mode Specifies the link mode.
Copyright © 2017, Juniper Networks, Inc.
Chapter 4: Using MSTP
Your Action
1. Click the tab.
Ports
2. Choose one of the following options:
Click and select an interface from the
Add
list. For an EX8200 Virtual Chassis
configuration, select the member, FPC,
and the interface from the list.
Select an interface in the
and click .
Edit
To delete an interface from the
configuration, select it in the
table and click .
Remove
Type a value.
Select a value from the list.
To enable the option, select the check box.
To enable the option, select the check box.
To enable the option, select the check box.
1. To enable the option, select the check box.
2. Select one of the following:
Point to Point —For a full-duplex link, the
default link mode is point-to-point.
—For a half-duplex link, the default
Shared
link mode is shared.
Port/State table
Port/State
105