28. Spanning Tree
ROX™ v2.2 User Guide
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RuggedBackbone™ RX1500
The bridge identifier of this bridge.
Bridge MAC
Synopsis: Ethernet MAC address in colon-separated hexadecimal notation
The bridge identifier of this bridge.
Root Priority
Synopsis: integer
Ports to which the multicast group traffic is forwarded.
Root MAC
Synopsis: Ethernet MAC address in colon-separated hexadecimal notation
Ports to which the multicast group traffic is forwarded.
Regional Root Priority
Synopsis: integer
The bridge identifier of the IST regional root bridge for the MST region this device belongs to.
Regional Root MAC
Synopsis: Ethernet MAC address in colon-separated hexadecimal notation
The bridge identifier of the IST regional root bridge for the MST region this device belongs to.
Root Port Slot
Synopsis: string - the keyword { --- }
Synopsis: string - one of the following keywords { lm6, lm5, lm4, lm3, lm2, lm1, sm }
Synopsis: string - the keyword { trnk }
If the bridge is designated, this is the slot containing the port that provides connectivity towards the
root bridge of the network.
Root Port Port
Synopsis: integer
If the bridge is designated, this is the port of the slot that provides connectivity towards the root
bridge of the network.
Root Path Cost
Synopsis: unsigned integer
The total cost of the path to the root bridge, composed of the sum of the costs of each link in the
path. If custom costs have not been configured. 1Gbps ports will contribute a cost of four, 100 Mbps
ports will contribute 19 and 10 Mbps ports will contribute 100. For the CIST instance of MSTP, this
is an external root path cost, which is the cost of the path from the IST root (i.e. regional root) bridge
to the CST root (i.e. network "global" root) bridge.
Regional Root Path Cost
Synopsis: unsigned integer
For the CIST instance of MSTP, this is the cost of the path to the IST root (i.e. regional root) bridge
Configured Hello Time
Synopsis: integer
The configured Hello time from the Bridge RSTP Parameters menu.
Learned Hello Time
Synopsis: integer
The actual Hello time provided by the root bridge as learned in configuration messages. This time
is used in designated bridges.
