Avaya P333R-LB manual

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Table of contents for the manual

  • Page 1

    A vaya P333R-LB Load Balancing Stackable Switch Load Balancing Application Guide May 2001[...]

  • Page 2

    Communication without boundaries T able of Contents: Section 1: Introduction Section 2: Application 1 — Server Load Balancing Section 3: Application 2 — Firewall Load Balancing Section 4: Application 3 — Application Redirection Section 5: Application 4 — Policy-Based Load Balancing[...]

  • Page 3

    Communication without boundaries 1 Introduction T oday , businesses r ely on the ability to conduct transactions and support customer relationships over the Internet. Delay-free access to information is the key to businesses running smoothly . T raditional network equipment and design is not suitable to respond to the incr easing demand on availabi[...]

  • Page 4

    Communication without boundaries The P333R-LB The P333R-LB enhances the P330 stackable switch solution by providing full load balancing and routing functionality in a single switch. Recent trends in network equipment in general, and switches in particular , have been towards ease of use and deployment. A vaya leads these trends: the P333R-LB contin[...]

  • Page 5

    Communication without boundaries 3 • Round Robin —This scheme directs traffic to the next server in the list. • Hash — This statistically- based scheme is based on a pre-defined algorithm. • Response T ime-based — This scheme directs traffic to the least busy server . Application 1— Server Load Balancing Server load balancing allows y[...]

  • Page 6

    Communication without boundaries The Load Balancing Process The P333R-LB selects the best available physical server upon receiving a new session r equest based on the following: • Server health (based on application health, not just server status) • Number of open sessions • Round Robin • Hash • Persistence: Subsequent packets in the same[...]

  • Page 7

    Avaya P333R-LB W AN Router Avaya P333R-LB Gigabit Ethernet with LAG Avaya P333R-LB VRRP LAN Internet W AN Router Avaya P333R-LB Gigabit Ethernet with LAG Avaya P333R-LB IP a IP b VRRP LAN Internet Communication without boundaries Application 2 — Firewall Load Balancing Firewalls can inher ently constitute a bottleneck since they are softwar e-bas[...]

  • Page 8

    Communication without boundaries Application 3 — Application Redirection Application redir ection is the diversion of traffic from certain applications to a dif ferent dir ection than the original one without the user/source being aware or r equiring any reconfiguring. Cache Redirection: One of the most common uses of application redir ection is [...]

  • Page 9

    Avaya P333R-LB Cache Server Farm Firewall Firewall Router Server Farm “Gold” “Silver” Internet “Gold” “Silver” WAN Router Avaya P333R-LB LAN Internet Cache Server Farm Server Farm “ Gold ” “ Silver ” Communication without boundaries Application 4 — Policy - Based Load Balancing Policy-based load balancing allows you to pro[...]

  • Page 10

    © 2001 A vaya Inc. All rights reserved. Printed in the U.S.A. 05/01 • EF-EIS1417 avaya.com For a contact in your area, go to: www .avaya.com/contactus[...]