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Maximum distance for VSS and VSL

balbaletabrez
Level 1
Level 1

Hi,

Can someone tell me till how much distance can we have VSL,

I have 2 x 6509 serving as redundant switches and now i plan to upgrade to VSS, but both switch are 2KM away from each other.

Thanks

Tabrez

6 Replies 6

fly
Level 2
Level 2

i have same question , no one answer me.

i have seen vss all in same location utill now!

i am interesting to implement vss in different location , about 50 km to 80 km distance.  but i haven't seen any real experience.

Hi,

At a distance of 2 Kms it did work .....for you it should work with ZR.

Sent from Cisco Technical Support iPad App

I have a VSS pair and the distance is about 20 Km.  It works but I wouldn't recommend it. 

Hi Leo

  Why you didn't recommend it?

  Thank you

Fly

Why you didn't recommend it?

If, for example, the VSS will go into "split-brain" then you don't want to drive 20 Kms away just to give the 2nd unit a kick-in-the-guts.

Particularly, when the outage is severely disrupting services.

If I wanted a VSS pair, I want it to be no more than 50 metres away. 

Hi Leo thankyou

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