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Question

STP configuration for Trunk Ports


Userlevel 4
Create Date: Mar 7 2013 12:50PM

Hi there,

I am looking at the best way of configuring STP on two summit switches as an example

switch 1 ports 1 T vlan 10, ports 2 T vlan 20 port 3 U vlan 30, Ports 23,24 are Tagged on Vlans 10,20,30.
switch 2 ports 1 T vlan 10, ports 2 T vlan 20 port 3 U vlan 30, Ports 23,24 are Tagged on Vlans 10,20,30.

ports 23,24 are our Trunk ports

how would i get STP running on ports 23/24 to prevent a loop. should i be looking a MSTP or somthing else?

Thanks
(from minhsall82)

4 replies

Userlevel 4
Create Date: Mar 8 2013 1:51PM

minhsall82, have you considered configuring EAPS? It is much easier and faster. If you need assistance with that, let us know. (from ethernet)
Userlevel 4
Create Date: Mar 9 2013 12:14PM

Hi,

would you be able to provide me with some guidence on setting EAPS - will this also enable protection on ports from loops created by 3rd part switch (if someone connects a HP switch and causes a loop)

Thanks (from minshall82)
Userlevel 4
Create Date: Mar 11 2013 1:34PM

Here is a link to EAPS in the Extreme Concept Guide:
https://www.extremenetworks.com/libraries/techpubs/EXOS_All/X_eaps/eaps.shtml

EAPS won't work with third party devices. (from ethernet)
Userlevel 4
Create Date: Mar 14 2013 1:32PM

Hello,

Try setting up RSTP. When adding trunk ports to the RSTP domain, add the ports as EMISTP mode. Then define those port/link types as point-to-point.
Let me know if this helps any? (from Shashank_S Kumar)

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