Also, regarding your DNS SRV, just pick a cluster to return in the query and ILS takes it from there.
Check out the DNS section in this doc: http://www.cisco.com/c/en/us/support/unified-communications/expressway-series/products-installation-and-configuration-guides-list.html Thanks, James On 12 Mar 2017 16:56, "Ahmed Abd EL-Rahman" <[email protected]> wrote: > Also if the Expressway supports working with multiple CUCM/IMP clusters, > how can it determine to which cluster it will direct the user client > registration request ? > > > > Also as mentioned there is single DNS and single domain for the whole 4 > clusters, so how the SRV records will be added for service discovery > specially from inside the company to direct each user to its correct > cluster? > > > > For example, this is one of the SRV records that should be added to the > internal DNS and answers the queries with CUCM IP address: ( > _cisco-uds._tcp.*domain*.com), so how such record will work properly to > direct each user request to its own cluster CUCM if all 4 clusters are > having the same DNS system and same domain ? > > > > > > > > > > > > > > Best Regards > > > > Ahmed Abd EL-Rahman > > Senior Network Engineer > > > > Hi James, > > > > Yes currently all the 4 clusters' users can talk to each others via > inter-cluster trunks over WAN links. > > > > Kindly if you have any documents explaining such setup please share it > with me. > > > > Appreciated. > > > > > > > > > > BR > > Ahmed Abd EL-Rahman > > Senior Network Engineer > > > > Sent from my iPhone > > > > On Mar 12, 2017, at 5:51 PM, James Buchanan <[email protected]< > mailto:[email protected]>> wrote: > > > > Hello, > > > > It is indeed possible. You use one cluster as a sort of "hub" cluster. > Then, just make sure the users in each cluster have the Home Cluster > parameter checked, but make sure it is only checked in one cluster. Also, > you have to make sure you are using ILS and have peer links in IM&P between > all the clusters. If all the Jabber users can talk to each other today in > all the various clusters, then you're already grand for using Expressway in > that scenario. > > > > Thanks, > > > > James > > > > On Sun, Mar 12, 2017 at 10:30 AM, Ahmed Abd EL-Rahman < > [email protected]<mailto:[email protected]>> wrote: > > Hi Gents, > > > > If we have 4 standalone clusters each of them has its own CUCM and IM&P > servers (version 11.5), I’d like to know if it’s possible to have only 1 > Expressway C and E system to serve all the 4 cluster with MRA service ? > > > > Taking into consideration that all the 4 clusters are using the same DNS > system and same domain name (company.com<http://company.com>). > > > > > > > > > > > > > > Best Regards > > > > Ahmed Abd EL-Rahman > > Senior Network Engineer > > > > > > _______________________________________________ > > cisco-voip mailing list > > [email protected]<mailto:[email protected]> > > https://puck.nether.net/mailman/listinfo/cisco-voip > > > > > > _______________________________________________ > > cisco-voip mailing list > > [email protected] > > https://puck.nether.net/mailman/listinfo/cisco-voip >
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