Sun Fire B10n Content Load Balancing Blade Version 1.3 Administration Guide
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This appendix defines some common load balancing terms, and provides examples of their use.
Sun Fire B10n Load Balancing Terms
Load Balancing Service
Defined by the destination 3-tuple, that is, the destination VIP, port, and protocol.
Example: 110.10.10.1:80:TCP
- Can be load balanced either at Layers 4 or 7
- Needs to be bound to one of the 2 interfaces on the blade
- Can be configured to support SSL if using a configuration with an SSL proxy
- When created, contains a default load balancing group with no servers or rules
- Load balancing groups with associated rules and schemes can be added
- Other attributes:
- IP persistence
- Cookie persistence
- Tracking
- Additional service access points (multi-homed service)
Load Balancing Group
- Contains a list of active servers (at least one)
- Contains a list of standby servers (optional)
- At least one rule must be specified (except for default group)
- Can add more rules or delete rules at run time
- Can add more servers or delete servers at run time
- Must have load balancing scheme specified:
- Round Robin (RR)
- Weighted Round Robin
- Static Load Balancing
Load Balancing Rule
- A rule is associated with a load balancing group in a service
- Four types of rules:
- Hypertext Transport Protocol (HTTP) URL rule
Examples: *.html, /subdir/*, /subdir/*.html
Example: Server=MACHINE1
Example: L7server=server1
Example: 129.47.29.0:2333/255.255.255.0:0
Sun Fire B10n Content Load Balancing Blade Version 1.3 Administration Guide
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817-6210-10
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Copyright © 2004, Sun Microsystems, Inc. All rights reserved.