Virtual IP Addressing
- Thread starter kramerP
- Start date
- Status
office politics
It's all just 1s and 0s
- Messages
- 6,555
- Location
- in the lab
http://www-03.ibm.com/servers/eserver/zseries/networking/vipa.html
The Virtual IP Address (VIPA) adds a layer of protection against network connection failure. A Virtual IP Address (VIPA) is configured on a TCP/IP stack rather than a physical adapter, and is therefore not associated with any particular endpoint device. By configuring multiple paths to a stack using VIPA in combination with conventional IP addresses, you can eliminate hardware and transmission media as a single point of failure for many connections. A server can still become unavailable, however, if a TCP/IP stack or operating system fails. Such a problem can be fixed by moving the VIPA to another stack. Dynamic VIPA (DVIPA) automates this movement.
Automatic VIPA takeover allows a VIPA address to automatically move to a stack where an existing suitable application instance is already active and allows the application to serve the client formerly going to the failed stack. DVIPA for an application server allows an application to create and activate VIPA so that the VIPA moves when the application moves. This means that application instances on a failing node may be distributed among all surviving nodes.
R ead more about VIPA in:
...
*follow link above*
The Virtual IP Address (VIPA) adds a layer of protection against network connection failure. A Virtual IP Address (VIPA) is configured on a TCP/IP stack rather than a physical adapter, and is therefore not associated with any particular endpoint device. By configuring multiple paths to a stack using VIPA in combination with conventional IP addresses, you can eliminate hardware and transmission media as a single point of failure for many connections. A server can still become unavailable, however, if a TCP/IP stack or operating system fails. Such a problem can be fixed by moving the VIPA to another stack. Dynamic VIPA (DVIPA) automates this movement.
Automatic VIPA takeover allows a VIPA address to automatically move to a stack where an existing suitable application instance is already active and allows the application to serve the client formerly going to the failed stack. DVIPA for an application server allows an application to create and activate VIPA so that the VIPA moves when the application moves. This means that application instances on a failing node may be distributed among all surviving nodes.
R ead more about VIPA in:
...
*follow link above*
- Status
