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Blocking and Unblocking Spanning
Tree Explorer Frames
Because the spanning tree does not operate automatically on
source-routing bridging circuits, it is necessary to “manually” build the
spanning tree in these circuits. Two NCL commands allow you to block
and unblock forwarding of spanning tree explorer frames on
source-routing bridging circuit groups. This is an alternative to changing
the Block STE configuration parameter in the Configuration Editor and
booting the router to put the change into effect. These commands
override the current setting of the Block STE parameter.
The commands available in this category are the following.
Command Function
Blockste Block spanning tree explorer frames on a circuit group (page 16-85).
Unblockste Unblock spanning tree explorer frames on a circuit group (page 16-86).
These commands are described below.
NCL
Commands
16
Using the Network Control Language
Blocking and Unblocking Spanning Tree Explorer Frames
16-83