Brocade Mobility RFS Controller System Reference Guide (Supporting software release 5.5.0.0 and later) - Manual (Page 110)

98 Brocade Mobility RFS Controller System Reference Guide
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FIGURE 31 Profile Overrides - Ethernet Ports Spanning Tree screen
22. Set or override the following parameters for the port’s MSTP configuration:
23. Refer to the Spanning Tree Port Cost table.
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.
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 indicates 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
controller or service platform is a point-to-point link.
Cisco MSTP
Interoperability Select either the Enable or Disable radio buttons. This enables interoperability with Cisco’s version of
MSTP over the port, which is incompatible with standard MSTP.
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 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.
Enable PortFast Select this option to enable drop-down menus for both the Enable Portfast BPDU Filter and Enable
Portfast BPDU guard options for the port.
PortFast BPDU Filter Enable PortFast to invoke a BPDU filter for this portfast enabled port. Enabling the BPDU filter feature
ensures this PortFast enabled port does not transmit or receive BPDUs.
PortFast BPDU Guard Enable PortFast to invoke a BPDU guard for this portfast enabled port. Enabling the BPDU Guard
feature means this portfast-enabled port will shutdown on receiving a BPDU.