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Virtual Server
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The number of the virtual server: 1 to 256.
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IP Address
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Sets the IP address of the virtual server using dotted-decimal notation. The default is 0.0.0.0.
The virtual server created within the switch will respond to ARPs and PINGs from network ports as if it was a normal server. Client requests directed to the virtual server's IP address will be balanced among the real servers available to it through real server group assignments.
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State
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Enables or disables the virtual server. When enabled, the virtual server within the switch services client requests sent to its defined IP address. The default is disabled.
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Layer 3 Only
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Enables or disables Layer 3-only balancing: layer3Only or disable. The default is disable.
Normally, the client IP address is used with the client Layer 4 port number to produce a session identifier. When the Layer 3 Only option is enabled, the WSM uses only the client IP address as the session identifier. It associates all connections from the same client with the same real server while any connection exists between them. This option is necessary for some server applications where state information about the client system is divided across different simultaneous connections, and also in applications where TCP fragments are generated. If the real server to which the client is assigned becomes unavailable, the Layer 4 software will allow the client to connect to a different server.
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Domain Name
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Sets the domain name of the virtual server. The maximum string length is 34 characters. The default is none.
Typically includes the name of the company or organization, and the Internet group code (.com, .edu, .gov, .org, and so forth), such as nortelnetworks.com. It does not include the hostname portion (www, www2, ftp, and so forth). This is used with Host Name to create a full host/domain name for individual services.
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Cookie Name
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Sets the cookie name of the virtual server used for cookie load balancing. The maximum string length is 20 characters. The default is none. Use an asterisk in the name for a wildcard, for example, ASPsession*.
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Cookie Offset
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Sets the starting byte offset of the cookie value: 0 to 64 bytes. The default is 0.
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Cookie Length
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Sets the number of bytes to extract from the cookie value--0 to 64 bytes. The default is 0.
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Cookie Search
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Enables or disables cookie search in URI. The default is disabled.
- Enable-- looks for cookie name/value pair in the URI.
- Disabled--looks for the cookie in the HTTP header.
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Hash Length
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Sets the number of bytes to hash to the server--0 to 255 bytes. A value of 0 (zero) disables URL hashing. The default is 0.
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HTTP Header Name
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Sets the HTTP header name of the virtual server. The default is none. Allowed string length is 0 to 32 characters.
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Cookie Search Response Count
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Sets the number of cookie search responses--1 to 16. The default is 1.
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Expire Cookie
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Sets expiration parameters for the Insert cookie persistence mode as follows:
- Absolute--a date <MM/dd/yy[@hh:mm]> (e.g. 12/31/01@23:59) Once the expiration date is reached, the cookie is not stored or given out. The date and time is based on RFC 822, RFC 850, RFC 1036, and RFC 1123, for GMT.
- Relative--a duration <days[:hours[:minutes]]> (e.g. 45:30:90) Defines the amount of elapsed time from when the cookie was created until it expires.
- none--The cookie expires when the user'ssession ends.
When a client sends a request without a cookie, the server responds with the data, and the switch inserts a persistence cookie into the data packet. The switch uses this cookie to bind to the appropriate server.
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BWM Contract
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Sets the virtual server's default Bandwidth Management contract--1 to 1,024. The default is 1024.
By default, all services under this virtual server are assigned this BWM contract. For more information about Bandwidth Management, see Bandwidth management.
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Services
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Opens the Virtual Server Services dialog box, listing all services for the virtual server. From the Virtual Server Services dialog box, you modify or add services for the virtual server.
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