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switching

aaronkb2002
Level 1
Level 1

Hi 

Need advice , I am to run OSPF between two different locations 

But now they have decided to place another switch in between the two end points participating in OSPF

How can this be achieved without upsetting my OSPF config ?

Thank you 

5 Replies 5

Joseph W. Doherty
Hall of Fame
Hall of Fame

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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.

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Posting

A L2 switch?  If so, it should be "invisible" to the two OSPF devices.  However, you might want to adjust your keep alive timers.

Hi 

yes its an access layer switch 

will it be a good idea to have trunk ports running through the 3 switches ? 

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 wha2tsoever (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

3 switches?  What 3?

. . . good idea to have trunk ports running through the 3 switches ?

Trunk port - for link between L3 devices?

Perhaps you could further explain your topology?

Hi 

Ok .

My topolgy is as follows 

4506  -------------------- 6500 ( access switch)  ---------------- 4506 

I need to run ospf between the 4506 switches 

So will it be ok to the run the links either side of the 6500 as dot1.q trunk links ? 

      

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 wha2tsoever (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

On the 4506s, set the ports to routed.  On the 6500's set the ports to access (same VLAN for both).

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