redundancy for 2911

[support]

is there any soultion to replicate two 2911 routers for redundancy?

[Joseph W. Doherty]

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Posting

Could you clarify what kind of redundancy you're looking for?

For small ISRs like 2911, redundancy is usually provided by having two (or more) with multiple L3 links and/or FHRP (i.e. HSRP, VRRP).

[support]

Hardware redundancy

if one unit fail the other one connected to the same switch will handle traffic.

[Joseph W. Doherty · Accepted solution]

Disclaimer

The  Author of this posting offers the information contained within this  posting without consideration and with the reader's understanding that  there's no implied or expressed suitability or fitness for any purpose.  Information provided is for informational purposes only and should not  be construed as rendering professional advice of any kind. Usage of this  posting's information is solely at reader's own risk.

Liability Disclaimer

In  no event shall Author be liable for any damages whatsoever (including,  without limitation, damages for loss of use, data or profit) arising out  of the use or inability to use the posting's information even if Author  has been advised of the possibility of such damage.

Posting

Hardware redundancy
if one unit fail the other one connected to the same switch will handle traffic.

Yes, although then the switch becomes a single point of failure.  That might be addressed with multiple switches and/or stackable switches.