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Chapter 4: Software Description
Figure 4-10. LACP port configuration screen.
4.1.6 RSTP
IEEE 802.1w Rapid Spanning tree protocol (LACP) provides a loop-free network
and redundant links to the core network with rapid convergence for faster
recovery from failed links, enhancing overall network stability and reliability.
RSTP System Configuration
• System Priority: This parameter configures the spanning tree priority globally for
this switch. The device with the highest priority becomes the STP root device.
However, if all devices have the same priority, the device with the lowest MAC
address will then become the root device. Numbers range between 0–61440 in
increments of 4094. There are 16 distinct values.
• Hello Time: Interval (in seconds) that the root device transmits a configuration
message (BPDU frame). Number between 1–10 (default is 2).
• Max Age: The maximum time (in seconds) that a device can wait without
receiving a configuration message before attempting to reconfigure. That also
means the maximum life time for a BPDU frame. Numbers range between 6–40
(default is 20).
• Forward Delay: The maximum time (in seconds) the root device will wait before
changing states (that is, discarding to learning to forwarding). Numbers range
between 4–30 (default is 15).
