RGS-9244GP Series User Manual
ORing Industrial Networking Corp.
22
set to be Manager, the MRP topology will fail.
React on Link Change
(Advanced mode)
Faster mode. Enabling this function will cause MRP topology
to converge more rapidly. This function only can be set in MRP
manager switch.
1
st
Ring Port
Chooses the port which connects to the MRP ring
2
nd
Ring Port
Chooses the port which connects to the MRP ring
*NOTE:
This function is by request and only available on “-MRP” model(s).
4.4 STP/RSTP/MSTP
4.4.1 STP/RSTP
STP (Spanning Tree Protocol), and its advanced versions RSTP (Rapid Spanning Tree
Protocol) and MSTP (Multiple Spanning Tree Protocol), are designed to prevent network loops
and provide network redundancy. Network loops occur frequently in large networks as when
two or more paths run to the same destination, broadcast packets may get in to an infinite loop
and hence causing congestion in the network. STP can identify the best path to the destination,
and block all other paths. The blocked links will stay connected but inactive. When the best
path fails, the blocked links will be activated. Compared to STP which recovers a link in 30 to
50 seconds, RSTP can shorten the time to 5 to 6 seconds.
STP Bridge Status
This page shows the status for all STP bridge instance.
Label
Description
MSTI
The bridge instance. You can also link to the STP detailed bridge status.
Bridge ID
The bridge ID of this bridge instance.
Root ID
The bridge ID of the currently selected root bridge.
Root Port
The switch port currently assigned the root port role.
Root Cost
Root path cost. For a root bridge, this is zero. For other bridges, it is the
