Extreme X460-G2-48x-10GE4 Ring Topology with CISCO Switch 9600 (Virtual Stackwise)

[rehmankhan81]

Hi Tech People, 

In our LAN Topology , we have 5 Exteme Switches in ring toplogy. There is single  2x10G link from Extreme switches  to two Core Switch paird in Virtual chassis e.g. Extreme Switch # 1 has single link 2x10G to the CORE and Extreme switch # 5 to the Core. 

I want to confirm that Can we make a loop free design in the case?  Suggest me the best design  as i m new to extreme network. Extreme switches are not in stack. 

thanks in advance.  

[Tomasz]

Hi Rehman,

I don’t have much experience in this kind of scenario myself, but in general EAPS ring can have 3rd party devices between two Extreme switches, as long as these devices pass through EAPS control VLAN and data vlan to the ring ports of EAPS-enabled switches. Please have in mind that with third party switches, if something between these breaks, Extreme switches may not spot this failure, so second type of failure detection comes into play - failtimer expiry. It might make the failover time a bit longer compared to Extreme-only ring when link failure information is immediately sent to the Master node.

You may want to refer to the EXOS User Guide to better understand EAPS ‘under the hood’, or please let us know what else would you like to know. 🙂

https://www.extremenetworks.com/support/documentation/extremexos-30-6/

Hope that helps,

Tomasz