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Device Configuration 5 - 249
18. Set the following
MSTP Configuration
parameters for the port channel:
19. Refer to the
Spanning Tree Port Cost
table.
Define an Instance Index using the spinner control and then set the cost. The default path cost depends on the user defined
port speed. The cost helps determine the role of the port channel in the MSTP network. The designated cost is the cost for
a packet to travel from this port to the root in the MSTP configuration. The slower the media, the higher the cost.
Enable PortFast BPDU
Guard
Select
Enable
to invoke a BPDU guard for this PortFast enabled port channel. Enabling
the BPDU Guard feature means this port will shutdown on receiving a BPDU. Thus, no
BPDUs are processed. The default setting is None.
Enable as Edge Port
Select this option to define this port as an edge port. Using an edge (private) port, you
can isolate devices to prevent connectivity over this port channel. This setting is
disabled by default.
Link Type
Select either the
Point-to-Point
or
Shared
radio button. Selecting Point-to-Point
indicates the port should be treated as connected to a point-to-point link. Selecting
Shared means this port should be treated as having a shared connection. A port
connected to a hub is on a shared link, while one connected to a access point is a point-
to-point link. Point-to-Point is the default setting.
Cisco MSTP
Interoperability
Select either the
Enable
or
Disable
radio buttons. This enables interoperability with
Cisco’s version of MSTP, which is incompatible with standard MSTP. This setting is
disabled by default.
Force Protocol Version
Sets the protocol version to either
STP(0)
,
Not Supported(1)
,
RSTP(2)
or
MSTP(3)
. MSTP
is the default setting.
Guard
Determines whether the port channel enforces root bridge placement. Setting the
guard to
Root
ensures the port is a designated port. Typically, each guard root port is a
designated port, unless two or more ports (within the root bridge) are connected
together. If the bridge receives superior (BPDUs) on a guard root-enabled port, the guard
root moves the port to a root-inconsistent STP state. This state is equivalent to a
listening state. No data is forwarded across the port. Thus, the guard root enforces the
root bridge position.
Speed
Default Path Cost
<=100000 bits/sec
200000000
<=1000000 bits/sec
20000000
<=10000000 bits/sec
2000000
<=100000000 bits/sec
200000
<=1000000000 bits/sec
20000
<=10000000000 bits/sec
2000
<=100000000000 bits/sec
200
<=1000000000000 bits/sec
20
>1000000000000 bits/sec
2
Содержание WiNG 5.6
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Страница 3: ...MOTOROLA SOLUTIONS WING 5 6 ACCESS POINT SYSTEM REFERENCE GUIDE MN000335A01 Revision A March 2014 ...
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