Comments on: Network Load Balancing recommended for Exchange 2010 CAS public facing (internet facing) and internal http://www.scottfeltmann.com/index.php/2009/10/21/network-load-balancing-recommended-for-exchange-2010-cas-public-facing-internet-facing-and-internal/ Mostly Technical, but some just because! Tue, 31 Aug 2010 17:18:09 -0500 http://wordpress.org/?v=abc hourly 1 By: Scott http://www.scottfeltmann.com/index.php/2009/10/21/network-load-balancing-recommended-for-exchange-2010-cas-public-facing-internet-facing-and-internal/comment-page-1/#comment-307 Scott Wed, 28 Jul 2010 01:33:45 +0000 http://www.scottfeltmann.com/?p=34#comment-307 Hi Frank, I'm going to say yes, with a HW load balancer you should be able to load balance the SMTP inbound traffic. Keep in mind however that this is only four inbound SMTP traffic from the internet or a relay. Internal Exchange communciation should continue to use the IP address of the actual Exchange Server. NLB can be used to provide high availability in the following scenarios: Load balancing of inbound SMTP connections for POP and IMAP client connections to the default Receive connector named "Client <Server Name>" that is created only on Hub Transport servers. --Load balancing of inbound SMTP connections for applications that submit e-mail to the Exchange organization. --NLB should not be used to distribute connections for internal routing between Hub Transport servers. Hi Frank,
I’m going to say yes, with a HW load balancer you should be able to load balance the SMTP inbound traffic. Keep in mind however that this is only four inbound SMTP traffic from the internet or a relay. Internal Exchange communciation should continue to use the IP address of the actual Exchange Server.

NLB can be used to provide high availability in the following scenarios:
Load balancing of inbound SMTP connections for POP and IMAP client connections to the default Receive connector named “Client ” that is created only on Hub Transport servers.

–Load balancing of inbound SMTP connections for applications that submit e-mail to the Exchange organization.

–NLB should not be used to distribute connections for internal routing between Hub Transport servers.

]]> By: Frank Wang http://www.scottfeltmann.com/index.php/2009/10/21/network-load-balancing-recommended-for-exchange-2010-cas-public-facing-internet-facing-and-internal/comment-page-1/#comment-304 Frank Wang Tue, 27 Jul 2010 07:38:53 +0000 http://www.scottfeltmann.com/?p=34#comment-304 Hi Scott, "As a note it appears that the Hub Transport Server in 2010 is not supported for NLB,in many deployments" But if I install dedicate HUB server, can I deploy NLB? Thanks. Hi Scott,
“As a note it appears that the Hub Transport Server in 2010 is not supported for NLB,in many deployments”

But if I install dedicate HUB server, can I deploy NLB?
Thanks.

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