Skype for Business Server is Microsoft’s current real-time communications application that was previously known as Lync Server. Server load balancing is a key component to an enterprise network infrastructure using Skype for Business Server to manage the instant messaging, presence VoIP, conferencing (audio, video, and web conferencing), and PSTN local traffic to and from the back end servers/server farms. WebMux assures the peak performance and high availability of services provided by Microsoft’s Skype for Business Server.
WebMux was one of the first hardware load balancer (HLB) approved by Microsoft for load balancing their Office® Live Communications Server Unified Communications (UC) Enterprise and Standard applications platform in 2005. And it continues to fulfill today’s Microsoft’s Skype® for Business Server 2015 HLB requirement as recommended by Microsoft. WebMux is ready whether you are migrating from Microsoft’s Lync Server 2010 or 2013 or starting a new project with Skype for Business Server 2015.
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 Exchange 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 Skype for Business wizard removes the need for any scripting and make the deployment of WebMux quick and easy.
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
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.
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.
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).
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.
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
Full 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.
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