Juniper EX9200 Features Manual page 47

Table 5: Spanning-Tree Protocol Configuration Parameters (continued)
Field Function
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.
BPDU Timeout Specifies the BPDU timeout action for the interface.
Action
MSTI
(MSTP only)
MSTI Name Specifies a name (an MSTI ID) for the MST instance.
Bridge Priority Specifies the bridge priority. The bridge priority
determines which bridge is elected as the root bridge.
If two bridges have the same path cost to the root
bridge, the bridge priority determines which bridge
becomes the designated bridge for a LAN segment.
Copyright © 2017, Juniper Networks, Inc.
Chapter 1: Using RSTP
Your Action
To enable the option, select the check box.
1. To enable the option, select the check box.
2. Select one of the following:
—For a full-duplex link, the
Point to Point
default link mode is point-to-point.
—For a half-duplex link, the default
Shared
link mode is shared.
Select one of the following options:
Log
Block
NOTE: For EX4300 switches, you can select one
of the following options:
Alarm
Block
1. Click the tab.
MSTI
2. Choose one of the following options:
Click .
Add
Select an MSTI ID and click
To delete an MSTI from the configuration,
select the MSTI ID and click
NOTE: For EX4300 switches, the MSTI ID can
be 1 through 64.
Select a value from the list.
.
Edit
.
Remove
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