ZyXEL Communications OLT2406, User Manual

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Chapter 63 Spanning Tree Protocol
OLT2406 User’s Guide
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This example enables RSTP on port msc-1-1 (uplink port 1 on the management switching card in slot 1). It
also sets port msc-1-2 to not be an edge-port because it is connected to another switch.
63.4 MSTP Commands
Use these commands to configure Multiple Spanning Tree Protocol (MSTP) as defined in IEEE 802.1s.
DesignatedRoot This field displays the unique identifier for the root bridge, consisting of bridge priority
plus MAC address.
RootPathCost This field displays the path cost from the root port on this OLT to the root switch.
RootPort This field displays the priority and number of the port on the OLT through which this OLT
must communicate with the root of the Spanning Tree.
MaxAge This field displays the maximum time (in seconds) the root switch can wait without
receiving a configuration message before attempting to reconfigure.
HelloTime This field displays the time interval (in seconds) at which the root switch transmits a
configuration message.
ForwardDelay This field displays the time (in seconds) the root switch will wait before changing states
(that is, listening to learning to forwarding).
BridgeMaxAge This field displays the maximum time (in seconds) the OLT can wait without receiving a
configuration message before attempting to reconfigure.
BridgeHelloTime This field displays the time interval (in seconds) at which the OLT transmits a
configuration message.
BridgeForwardDelay This field displays the time (in seconds) the OLT will wait before changing states (that is,
listening to learning to forwarding).
TransmissionLimit This field displays the maximum number of BPDUs that can be transmitted in the interval
specified by
BridgeHelloTime .
ForceVersion This field indicates whether BPDUs are RSTP (a value less than 3) or MSTP (a value
greater than or equal to 3).
OLT2406(config)# configure
OLT2406(config)# spanning-tree
OLT2406(config)# spanning-tree msc-1-1
OLT2406(config)# no spanning-tree msc-1-2 edge-port
Table 236 show spanning-tree config (continued)
LABEL DESCRIPTION
Table 237 MSTP Commands
COMMAND DESCRIPTION M P
show mstp
Displays MSTP configuration for the OLT. E 3
spanning-tree mode <RSTP|MSTP>
Specifies the STP mode you want to implement
on the OLT. C 13
mstp
Activates MSTP on the OLT. C 13
no mstp
Disables MSTP on the OLT. C 13
mstp configuration-name < name >
Sets a name for an MSTP region.
name
: 1-32 printable characters
C 13
mstp revision <0-65535>
Sets the revision number for this MST Region
configuration. C 13