TB specifies that the transparent bridge (TB) spanning tree protocol parameters are to be affected.
When setting these values, make sure that the following relationships exist between the parameters or the input will be rejected:
2 X (Bridge Forward Delay - 1 second) >= Bridge Maximum Age Bridge Maximum Age >= 2 X (Bridge Hello Time + 1 second)
This option specifies that the source routing bridge (SRB) protocol parameters are to be affected.
This maximum age (period of time) that should be used to time out spanning tree protocol related information.
When this bridging router is selected as the root bridge in a spanning tree, the value of this parameter specifies how long other active bridges are to store the configuration bridge protocol data units (BPDUs) they receive. When a BPDU reaches its maximum age limit without being replaced, the active bridges in the network discard it and assume that the root bridge has failed. A new root bridge is then selected.
Dependencies
The setting of this parameter may be affected by the setting of the Bridge Hello Time parameter. In addition, the setting of this parameter may affect the setting of the Bridge Forward Delay parameter.
Valid Values: 6 to 40 seconds
Default Value: 20 seconds
This value is the time interval between HELLO BPDUs.
When this bridging router is selected as the root bridge in a spanning tree, this parameter specifies how often this bridge transmits configuration bridge protocol data units (BPDUs). BPDUs contain information about the topology of the spanning tree and reflect changes to the topology.
Dependencies
The setting of this parameter may affect the setting of the Max age parameter.
Valid Values: 1 to 10 seconds
Default Value: 2 seconds
When this bridging router is selected as the root bridge in a spanning tree, the value of this parameter specifies how long active ports in all bridges remain in a listening state. When the forward delay time expires, ports in the listening state go into the forwarding state. State changes occur as a result of changes in the topology of the spanning tree, such as when an active bridge fails or is shut down.
The root bridge conveys this value to all bridges. This process ensures that all bridges are consistent between changes.
Dependencies
The setting of this parameter may be affected by the setting of the SRB Bridge Max Age parameter.
Valid Values: 4 to 30 seconds
Default Value: 15
This value is a high-order 2-octet bridge address found in the Bridge Identifier - either the MAC address obtained from the lowest-numbered port or the address set by the Set Bridge option.
This parameter is the most significant 2-octet part of the bridge identifier. The bridge identifier consists of two parts: a least significant 6-octet bridge address and the most significant 2-octet bridge priority.
The bridge priority indicates the chances that this bridge will become the root bridge of the spanning tree. The lower the numerical value of the bridge priority parameter, the higher the priority of the bridge and the more likely it is to be chosen. The spanning tree algorithm chooses the bridge with the lowest numerical value of this parameter to be the root bridge.
This parameter is the high-order, 2-octet bridge address found in the Bridge Identifier for this bridging router - either the MAC address obtained from the lowest number port, or the address set by the SRB Bridge Address parameter. The value of this parameter specifies the priority of this bridging router. When this bridging router is activated by the network administrator, its priority value is compared to the priority values of other active bridges in the network. The bridge with the highest priority becomes the root bridge of the spanning tree.
Valid Values: 0 to 65535
Default Value: 32768
Select the Submit button.
This option modifies the spanning tree protocol port parameters.
This is the Bridge port number and selects the port for which the path cost and port priority will be changed.
This parameter specifies the cost associated with passing frames through this port interface, should this bridging router become the root bridge. Factor this value in when determining spanning tree routes between any two stations. A value of 0 instructs the bridging router to automatically calculate a path cost for this port using its own formula.
Valid Values: 1 to 65535
Default Value: 0 (means the cost will be calculated automatically)
This parameter specifies the priority of the port used by the spanning tree algorithm in making comparisons for port selection (which port offers the lowest cost path to the root bridge) and blocking decisions.
Valid Values: 0 to 255
Default Value: 128
Select the Submit button.
Enter a RD limit value.
This number specifies the maximum number of RDs that might be contained in the routing information field (RIF) of the frame type specified by the RD limit type.
The hop count for each frame is the number of bridges through which the frame has traveled so far. One RD is added to the Routing Information Field each time the frame passes through a bridge. Therefore, the number of RDs equals the number of hops. When the number of RDs (hops) exceeds the number of hops allowed by this parameter, the frame is discarded.
Valid Values: 0 to 14
Default Value: 14
Select the Submit button.
Enter the RD limit value.
This parameter specifies the maximum number of Route Descriptors (RDs) for Spanning Tree Explorer (STE) frames that are transmitted or forwarded by the bridge when source routing is enabled. This number is the maximum number of Route Descriptors (RDs) that can be contained in the Routing Information Field (RIF) of the frame.
The hop count for each frame is the number of bridges through which the frame has traveled so far. One RD is added to the Routing Information field each time the frame passes through a bridge. Therefore, the number of RDs equals the number of hops. When the number of RDs (hops) exceeds the number of hops allowed by this parameter, the frame is discarded.
Valid Values: 0 to 14
Default Value: 14
Select the Submit button.
For IP unicast addressing, the tunneling configuration requires that you supply IP addresses of destination bridges. This record will be used by the router software to convert the segment number in the routing information field (RIF) in a source routed frame to the corresponding IP address of the destination bridge. For transparent bridging frames, it identifies the other endpoint of the tunnel.
For IP multicast addressing, the tunneling configuration requires only the IP multicast address reserved for tunneling. Encapsulation uses three groups of IP multicast addresses. The first group is for sending all-routes explorer (ARE) frames, the second group is for sending spanning tree explorer (STE) frames, and the third group is for sending specifically routed frames (SRF).
Note: The bridging router software transparently differentiates between unicast and multicast addresses.
Enter the IP address to be added.
Valid Values: a valid IP address
Default Value: none
Select the Submit button.
Enter the IP address to be deleted.
Valid Values: a valid IP address
Default Value: none
Select the Submit button.
Enter the group number for the Client Group that you want the router to join.
Valid Values: 1 to 64
Default Value: 0
Select the Submit button.
Enter the group number for the Peer Group that you want the router to join.
Valid Values: 1 to 64
Default Value: 0
Select the Submit button.
Enter the group number for the Peer Group that you want the router to join.
Valid Values: 1 to 64
Default Value: 0
Select the Submit button.
Use the Leave option to remove the MSS Server as a member of multicast groups.
Enter the group number for the Client Group that you want the router to leave.
Valid Values: 1 to 64
Default Value: 0
Select the Submit button.
Use the Leave option to remove the MSS Server as a member of multicast groups.
Enter the group number for the Peer Group that you want the router to leave.
Valid Values: 1 to 64
Default Value: 0
Select the Submit button.
Use the Leave option to remove the router as a member of multicast groups.
Enter the group number for the Server Group that you want the router to leave.
Valid Values: 1 to 64
Default Value: 0
Select the Submit button.
This option sets the base multicast IP address of the router for multicast tunneling.
Enter the IP address to be used as the base multicast address of the router.
Valid Values: a valid IP address
Default Value: none
Select the Submit button.