https://community.hpe.com/t5/communications-and-wireless/lan-extension-query/m-p/3572929#M4073 specific to MC service guard but may give you some ideas..<A href="http://docs.hp.com/en/B3936-90070/ch01s07.html" target="_blank">http://docs.hp.com/en/B3936-90070/ch01s07.html</A><BR /><BR />might give further ideas..<A href="http://www.networkworldpartners.com/ciena/dataCenters.jsp" target="_blank">http://www.networkworldpartners.com/ciena/dataCenters.jsp</A><BR /><BR />plug "geographically separate data centers" into google and see results...<BR /> Tue, 12 Jul 2005 16:57:49 GMT Jeff Brownell 2005-07-12T16:57:49Z https://community.hpe.com/t5/communications-and-wireless/lan-extension-query/m-p/3572928#M4072 Hi Everyone<BR /><BR />We want to put two servers in a cluster at geographically separate datacenters linked by a 100Mb LAN Extension service. This means we need to have the same IP subnet available at both sites, I am wondering how to achieve this ? Can we do this using trunk links or do we need to do some clever routing ?<BR /><BR />Can anyone give advise on the best way to do this ?<BR /><BR />Thanks in advance<BR /><BR />Steve Wed, 29 Jun 2005 05:13:17 GMT https://community.hpe.com/t5/communications-and-wireless/lan-extension-query/m-p/3572928#M4072 steven Burgess_2 2005-06-29T05:13:17Z https://community.hpe.com/t5/communications-and-wireless/lan-extension-query/m-p/3572929#M4073 specific to MC service guard but may give you some ideas..<A href="http://docs.hp.com/en/B3936-90070/ch01s07.html" target="_blank">http://docs.hp.com/en/B3936-90070/ch01s07.html</A><BR /><BR />might give further ideas..<A href="http://www.networkworldpartners.com/ciena/dataCenters.jsp" target="_blank">http://www.networkworldpartners.com/ciena/dataCenters.jsp</A><BR /><BR />plug "geographically separate data centers" into google and see results...<BR /> Tue, 12 Jul 2005 16:57:49 GMT https://community.hpe.com/t5/communications-and-wireless/lan-extension-query/m-p/3572929#M4073 Jeff Brownell 2005-07-12T16:57:49Z