IRF (Stacking)

[PSalvador]

Hello,

In IRF/Stack between two A5800, we need to add two SFP+ DA Cable and two SFP+ or one of both is enough?

Regards.

[Fredrik Lönnman]

Hi,

The DA-cables include SFPs at the ends, so just buy two of those.

[PSalvador]

What I wonder to know is if the IRF works only with a DA cable or if we need to include two to close the loop ...

[Fredrik Lönnman]

IRF works just fine with one cable, allthough two is recommended.

[Manfred M.]

Hi!

One is enough - you can have a closed Ring (which you should prefer) or a Daisy Chain ("open" Ring) Topology.

The DA Cables really work fine. Take care about the limits! (max 4 Switches with A5120; max. 4 Switches with A5500-SI, max. 4 Switches with A5500-EI, max 9 Switches with A58x0).

see also the IRF2.0 Technology White Paper:

http://www.h3c.com/portal/Products___Solutions/Technology/IRF/Technology_White_Paper/200901/624932_57_0.htm

Manfred