Help to determine the most suitable STP type for my configuration

[Ilya_Semenov]

Hello, everybody!

I have a network, where only Extremes exist.

Access layer are 8 stacks spread through floors.

Distribution layer is a stack of 2 X670.

Core layer are two BD8806 connected with MLAG. There is also VRRP configured.

There is one etherchannel between core for MLAG, and one etherchannel to X670 stack.

Floor stacks are connected to X670 with one etherchannel link.

I have 30 vlans total.

The schema is provided below.

Could you please help me to find the most suitable STP type/configuration?

At the moment I have configured EMISTP encapsulation with dot1w mode, but I don't like it.

Many thanks in advance,

Ilya

P.S. With this scheme I have strange alternating ping replies from 1 to 50 ms. Is there any connection with STPDs or VRRP in the core?

P.P.S Could you give me a link to any article where the simplest STP configuration on extremes described? I am interested in the method of configuring STP for all vlans with minimum efforts like in CISCO.

[davidj_cogliane]

ELRP is very simple to configure and works flawlessly from what I have seen.

Configure ELRP to run on a NoLoop Vlan tagged on every port and exclude the uplinks.

Most of our customers run it with a permanent disable and simply enable the port after they clear the loop.

Thanks,

[André_Herkenrat]

In the core layer you already have MLAG. There you have to be very careful with another L2 Protocol. And when it comes to "stupid patch prevention" I'd always prefer ELRP over STP.
In your network I see the most risk of stupid patching in the Edge. In these areas ELRP is always a good choice.

Regards
André

[Ilya_Semenov]

So, your advice is to remove STP from core and distribution layers and replace them with ELRP?

Is there any negative impact of STPD on a network? on switches?

[André_Herkenrat]

You can decide, what it does - Most customers disable the port for 60 seconds and send a notification.

Best Regards
André

[Ilya_Semenov]

Thanks to you, Andre!

I've heard about this feature, but still haven't clear understanding what it really does?

If it's enabled, what will happen in case of a loop?