Microsoft Exchange Server Load Balancing

microsoft exchange server

 

 

 

 

The Exchange Server platform, the power behind Microsoft Outlook’s features remains at the forefront as acalendaring software, mail server, and contact manager for organizations. WebMux Network Traffic Manager plays a key role in load balancing the network data between the Exchange back end servers/server farms assuring clients’ data are delivered reliably to their destination points.

WebMux’s extensive load balancing capabilities support a wide-range of TCP and UDP based Internet protocol (IP) applications and services including other Microsoft applications such as Skype for Business, Lync Server, Sharepoint Server, Xbox Live Games Server, and Internet Information Services (IIS) for Windows Server.

The WebMux setup and configuration wizards are one of multiple options that lowers the complexity bar when setting up an enterprise-class load balancing/ADC solution for today’s sophisticated applications and services. The Exchange Server wizard removes the need for any scripting and make the deployment of WebMux quick and easy.

avanu webmux microsoft exchange 2013

avanu webmux menu for microsoft exchange 2013

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

avanu webmux screens

The interface optimizes the use of smartphone and tablet mobile technologies that increases the WebMux management convenience and ease in today’s highly mobile work environment.

 

 

WebMux Flexibility and Scalable Platforms

Available as a hardware appliance for ‘plug-and-run’ solution or Virtual software appliance designed for cloud computing environments.

WebMux High Performance
– WebMux uses the 64-bit processor platform and developed using intensive algorithms to provide the high capacity, reliability, and availability
– WebMux appliance models are built with the best-in-class server-grade hardware with up to 16-core CPU processing power to provide outstanding, feature-rich performance for extensive cryptographic, compression, and network traffic management functionality

WebMux Extensive Features (Included in all models)

All WebMux models have four (4) load balancing operation modes with each mode having its advantage. The number of Arms refers to the number of physical networks. There are one or two LAN connections (typically External and Internal). Both IPv4 and IPv6 are supported and work in all operation modes.

One-Armed Single Network is a special case of bridging in which the WebMux bridges internally on one interface (that can be bonded for higher capacity). The bridge loop issue is elimiated. Note that all traffic is “source NATted” (aka SNAT)–so the WebMux becomes the client and the server does not see the IP address of the client. A limitation of this configuration is that an additional IP address must be assigned to the WebMux for each 65,000 simultaneous connections–because of that SNAT configuration and client-server relationship.

AVANU WebMux One-Armed Single Network Mode

AVANU WebMux One-Armed Single Network Mode

One-Armed Direct Server Return (DSR) the highest-performance option in cases where it is supported, also known as “Direct Routing” or “Out-of-Path (OOP)” this makes the WebMux the traffic director for incoming traffic but return traffic can route back bypassing the WebMux (unless the WebMux does SSL termination). Note that this requires a simple configuration of a “loopback adapter” on the servers and also not there is no performance advantage if SSL or TLS termination is required as the WebMux becomes the endpoint for the SSL/TLS security relationship.

AVANU WebMux One-Armed Direct Server Return (DSR) Mode

AVANU WebMux One-Armed Direct Server Return (DSR) Mode

AVANU WebMux One-Armed Direct Server Return (DSR) Mode-IP

AVANU WebMux One-Armed Direct Server Return (DSR) Mode-IP

Two-Armed Network Address Translation (NAT) is the required configuration when you have two subnets. It is the common “Destination” NAT configuration in which the clients connect to an IP address on the WebMux and the WebMux proxies to the back-end servers. The servers “see” the IP address of the client, as if the WebMux was not there. This is the required configuration when there are two IP subnets (Internet-side and Internal).

AVANU WebMux Two-Armed NAT Mode

AVANU WebMux Two-Armed NAT Mode

AVANU WebMux Two-Armed NAT Mode (Single WebMux)

AVANU WebMux Two-Armed NAT Mode (Single WebMux)

AVANU WebMux Two-Armed NAT Mode (Redundant WebMux)

AVANU WebMux Two-Armed NAT Mode (Redundant WebMux)

Two-Armed Transparent makes the WebMux an inline bridge–seeing all of the traffic below the IP layer and able to manage traffic without IP address changes. Note that, being a bridge, you must avoid bridge loops–having a circular path through inter-connected bridges. Also, being inline and Two-Arms, the load-balanced traffic flows through the WebMux.

AVANU WebMux Two-Armed Transparent Mode

AVANU WebMux Two-Armed Transparent Mode

 

WebMux Full-range Load Balancing Scheduling Methods

Least connections, least connections-persistent, round robin, round robin-persistent, weighted fastest response, weighted fastest response-persistent, weighted least connection, weighted least connections-persistent, weighted round robin, weighted round robin-persistent

WebMux Robust Security: Flood Control® originally developed for a U.S. Department of Defense service organization provides added TCP/UDP protection against Denial of Service (DoS) & Distributed Denial of Service (DDoS) attacks, Federal Information Processing Standard (FIPS) Publication 140-2 compliant, TCP/SYN protection, IPv4 to IPv6 translations (supports IPv6 client requests to IPv4 servers), HTTPS/SSH management, up to 8192-bit TLS/SSL encryption strength,  TACACS+ and LDAP authentication, and Payment Card Industry/PCI compliant)

WebMux SSL Support: SSL acceleration, SSL certificate signing request (CSR), support for TCP protocols, and support for third party certificates

WebMux Network Topologies: Direct Server Return (DSR), Full-NAT, Half-NAT, Ethernet Bridge

WebMux IP Support: ASP, Basic Layer 2 Protocols (i.e., STP, MSTP, RSTP…), DNS, FTP, HTTP, HTTPS (SSL), IMAP, LDAP, NNTP, POP3, Radius, RDP (Terminal Services), SMTP, SNMP, SSH, Streaming media, TCP/UDP based services, TFTP

WebMux Other Operation Modes: Active/passive and active/active redundant operation, application GUI and wizard setup, application health checking, web-based GUI, adaptive balancing, bonding/teaming ports (802.3ad/LACP), content encoding (HTTP compression), IP persistence, link interface bonding, reverse proxy, multiple gateway network failover, SSL termination/offloading, multiple VLAN trunking (IEEE 802.1Q)

Other: 4,999 servers (real or virtual) supported

WebMux High Return on Investment

avanu webmux chartFull extensive load balancing features on all models
Self-contained (no royalty or extra hidden costs)
Save on costly manpower hours to write scripts, configure, manage, and maintain
No additional maintenance contract required with purchase

 

AVANU adds value by placing customers first with a focus on easy product user interface, robust product features, and excellence in customer support services.

AVANU WebMux Specifications Overview

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