01-12-2008 02:57 PM - edited 03-09-2019 07:50 PM
Hallo,
we are planning a scaling DMVPN network for around 2000 spokes.
Is it possible to install the HUB's behind a Load Balancer so that they are reachable only through 1 VIP address and ALSO the possibility of a direkt spoke-spoke communication when needed?
I only found Phase 2 and SLB for HUBs but
without a spoke-spoke communication.
http://www.cisco.com/application/pdf/en/us/guest/products/ps6658/c1161/cdccont_0900aecd80313ca3.pdf
see page 13 there is what we like to have but with the extension of spoke-spoke communication.
regards
Karlheinz
01-14-2008 07:50 AM
Have found the solution. The Hubs must be connected through an separate tunnel on which NHRP runs.
01-14-2008 03:42 PM
I have been waiting for Cisco to get the spoke-spoke functionality working for this DMVPN HUBs behind load balancer environment. The traditional DMVPN with multiple HUBs does not really scale well, plus it is not very stable routing and NHRP wise.
Would you care to tell more about your solution. As far as I know on a HUB you cannot have one tunnel for spoke to HUB connections and the other just for HUB-HUB, the NHRP requests from the spokes to find out about the other spoke public IP will not be forwarded between the tunnel interfaces on the HUB
01-15-2008 11:12 AM
01-18-2008 04:12 PM
Thanks a lot for info, will try it in the lab
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