Hi,
thanks your sharing your experience,
Let me explain the my scenario :-
We have two sites (Location) site A and Site B.
In site A, We have Lync infra (FE,Edge, etc) and site B is connected with MPLS to site A.
we have Lync federation with other company and also AD trust with federated company. Federated company Lync infra site is connected with site A with VPN tunnel.
Now
when site A user do the Lync conference with federated client then conference works fine without any issue.
But with the site B user do the conference with federated client then desktop sharing does not work.
Lync error :-
Diagnostic header: 25; reason="A federated call failed to establish due to a media connectivity failure where both endpoints are internal"; LyncAppSharingDebug="ViewerChannel:0x0; Memory Usage: totalUsedVirtual=647, availableVirtual=8387960;
AutoRejoin=0; StartupTime: 2015-08-14T12:00:13.504Z; "
Edge Netmon :-
11803 6:36:46 PM 8/14/2015 52.9369640 MediaRelaySvc.exe 96.x.x.12 172.x.x.13 TCP TCP:Flags=...A.R.., SrcPort=50486, DstPort=HTTPS(443), PayloadLen=0, Seq=2307065106, Ack=3099001451, Win=0 {TCP:985, IPv4:917}
any idea...
Thanks,
Deepak