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Help understanding, and proper deployment of STP (loop protection).
I just installed 3 GS752TPS switches in a stacked environment. These switches supply a 20,000 square foot office building for various tennants. These Tennants all run on seperate Vlans, but can range in size from 4 ports to 24 ports of the switch.
I want to prevent a tennant from creating a loop using their own switches. I want to eliminate as much equipment as possible so there are no switches other than these in the network, but if a tennant who thinks they are a wiz goes and buys some cheap $25 4 port switch at walmart to hook up his printer, desktop, or IP phone I don't want him some how creating a loop crashing the entire building.
I understand that's how STP works, and why it was invented. I have never deployed it before. Would someone mind walking me through the proper steps and best practices? My google searches come up with different terms than STP (also including STP) and seem to be aimed towards Cisco switches.
Hi thapchild,
Welcome to the community!
By default GS752TPS have enable RSTP. And I think the default settings can meet your requirements. Once there is a looped switch connected to the GS752TPS , the port on the GS7582TPS that connected to the looped switch would be disabled by RSTP. So the looped switch would not affect the entire building.
To make sure stp have been enabled,you can check it by following steps,
Step1. Go to "Switching/STP " Spanning Tree State should be enable ,STP Operation Mode RSTP(STP is also ok,by default it is RSTP)
Step2. Go to "Switching/STP/Advanced/CST Port Configuration" Port STP status should be "Enable"
For more details about STP feature of GS75TPS, you can refer here, page 122 to 134.
Best Regards
Carl
Netgear Employee
7 Replies
Hi thapchild,
Welcome to the community!
By default GS752TPS have enable RSTP. And I think the default settings can meet your requirements. Once there is a looped switch connected to the GS752TPS , the port on the GS7582TPS that connected to the looped switch would be disabled by RSTP. So the looped switch would not affect the entire building.
To make sure stp have been enabled,you can check it by following steps,
Step1. Go to "Switching/STP " Spanning Tree State should be enable ,STP Operation Mode RSTP(STP is also ok,by default it is RSTP)
Step2. Go to "Switching/STP/Advanced/CST Port Configuration" Port STP status should be "Enable"
For more details about STP feature of GS75TPS, you can refer here, page 122 to 134.
Best Regards
Carl
Netgear Employee
On my GS752TPS it's actually not enabled by default, which is why I was asking for proper deployment.
Here is a screen of the default settings for GS752TPS:
Thank you for the detailed instructions. I will see if I can research the differences between STP RSTP and MSTP before deploying to ensure I use the operation mode that best suits my environment.
Would enabling "rstp" have any detremental effects of the multiple Vlans? We don't want any data to pass between different vlans.
Once I set this, if the Topology changes is there anything I need to do to update it? or is it a "set it, and forget it" type system?
Hi thapchild,
Stp would not take vlan into consideration. It just take effct base on ports.
Here I also have a question to make sure from you. Do you have any other switches connect to GS752TPS ? If there some other switches , please provide us with simple topo about how they connected before do any stp configuration.
It better to keep us posted befor you make any topology changes if your are not very suce about it .
Best Regards
Carl
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