Black Box LE2700A, User Manual, Page: 29 / 154

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Page 29
Chapter 4: Redundancy
Table 4-6. STP statistics screen options.
Label Description
Port The switch port number to which the following settings will be applied.
RSTP The number of RSTP configuration BPDUs received/transmitted on the port.
STP The number of legacy STP configuration BPDUs received/transmitted on the port.
TCN The number of (legacy) topology change notification BPDUs received/transmitted on the port.
Discarded Unknown The number of unknown spanning tree BPDUs received (and discarded) on the port.
Discarded Illegal
The number of illegal spanning tree BPDUs received (and discarded) on the port.
Refresh Click to refresh the page immediately.
Auto-refresh Check to enable an automatic refresh of the page at regular intervals.
STP Bridge Configurations
Figure 4-5. STP Bridge Configuration screen.
Table 4-7. STP Bridge Configuration screen options.
Label Description
Protocol Version The version of the STP protocol. Valid values include STP, RSTP, and MSTP.
Forward Delay The delay used by STP bridges to transit root and designated ports to forwarding (used in STP
compatible mode). The range of valid values is 4 to 30 seconds.
Max Age The maximum time the information transmitted by the root bridge is considered valid. The range of
valid values is 6 to 40 seconds, and Max Age must be <= (FwdDelay-1)*2.
Maximum Hop Count This defines the initial value of remaining hops for MSTI information generated at the boundary of
an MSTI region. It defines how many bridges a root bridge can distribute its BPDU information to.
The range of valid values is 4 to 30 seconds, and MaxAge must be <= (FwdDelay-1)*2.
Transmit Hold Count The number of BPDUs a bridge port can send per second. When exceeded, transmission of the next
BPDU will be delayed. The range of valid values is 1 to 10 BPDUs per second.
Save Click to save changes.
Reset Click to undo any changes made locally and revert to previously saved values.