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IIS ARR

AND

WAP
What is LoadMaster?
• Application delivery controller appliance
• Available as hardware appliance or virtual system
• Wide...
Feature Comparison
Features LoadMaster IIS ARR WAP
Load Balancing Y Y1 Y1
HTTP based
routing Y Y N
Server Name
Indication ...
What is ARR?
• IIS Extension designed for request routing (similar to
KEMP’s content switching but not as powerful)
• Perf...
What is WAP?
• Web Application Proxy included with Windows Server
2012 R2
• ADFS is hard requirement for installation
• No...
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Load Balancers vs IIS ARR or a Web Application Proxy (WA) for HA

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Understanding the differences between a load balancer and software features like Microsoft IIS's ARR and a Web Application Proxy (WAP) can be confusing. We compare the full feature set of a Load Balancer appliance / ADC (Application Delivery Controller) versus Application Request Routing, especially for High Availability

Veröffentlicht in: Software
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Load Balancers vs IIS ARR or a Web Application Proxy (WA) for HA

  1. 1. IIS ARR
 AND
 WAP
  2. 2. What is LoadMaster? • Application delivery controller appliance • Available as hardware appliance or virtual system • Wide range of load balancing algorithms • Can be deployed as highly available pairs • Can switch traffic based on content • Includes caching and compression • Active Directory, RADIUS and two-factor authentication • Free version available
  3. 3. Feature Comparison Features LoadMaster IIS ARR WAP Load Balancing Y Y1 Y1 HTTP based routing Y Y N Server Name Indication Y Y N Intrusion Protection Y N N High Availability (HA Pair) Y N2 N2 GEO Functionality Y N N 1 – can load balance HTTP workloads only 2 – requires external mechanism to achieve HA
  4. 4. What is ARR? • IIS Extension designed for request routing (similar to KEMP’s content switching but not as powerful) • Performs load balancing functions for HTTP requests only • Cookie based and host based affinity • Six load balance algorithms • Weighed RR, Weighed total Traffic, Least current request, Server variable hash, Query string hash, Request hash • Requires external mechanism for high availability
 (NLB or HLB) • Also provides caching functionality
  5. 5. What is WAP? • Web Application Proxy included with Windows Server 2012 R2 • ADFS is hard requirement for installation • No basic or NTLM pre-authentication • Requires external mechanism for high availability, no official guidance for HA exists • No information on persistence and load balancing mechanisms • Seems limited to HTTP based workloads only • Very thin documentation


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