ESRP Election Algorithms

The following table describes the ESRP election algorithms. Each algorithm considers the election factors in a different order of precedence. The election algorithms that use sticky and weight are only available in extended mode.

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ESRP Election Algorithms

Election Algorithm Description
ports > track > priority Specifies that this ESRP domain should consider election factors in the following order: active ports, tracking information, ESRP priority.
ports > track > priority > mac Specifies that this ESRP domain should consider election factors in the following order: active ports, tracking information, ESRP priority, MAC address.
Note: This is the default election algorithm for standard mode.
priority > mac Specifies that this ESRP domain should consider election factors in the following order: ESRP priority, MAC address.
priority > ports > track > mac Specifies that this ESRP domain should consider election factors in the following order: ESRP priority, active ports, tracking information, MAC address.
priority > track > ports > mac Specifies that this ESRP domain should consider election factors in the following order: ESRP priority, tracking information, active ports, MAC address.
sticky > ports > track > priority Specifies that this ESRP domain should consider election factors in the following order: stickiness, active ports, tracking information, ESRP priority.
sticky > ports > track > priority > mac Specifies that this ESRP domain should consider election factors in the following order: stickiness, active ports, tracking information, ESRP priority, MAC address.
sticky > ports > weight > track > priority > mac Specifies that this ESRP domain should consider election factors in the following order: stickiness, active ports, port weight, tracking information, ESRP priority, MAC address. This is the default election algorithm for extended mode.
sticky > priority > ports > track > mac Specifies that this ESRP domain should consider election factors in the following order: stickiness, ESRP priority, active ports, tracking information, MAC address.
sticky > priority > track > ports > mac Specifies that this ESRP domain should consider election factors in the following order: stickiness, ESRP priority, tracking information, active ports, MAC address.
sticky > priority > mac Specifies that this ESRP domain should consider election factors in the following order: stickiness, ESRP priority, MAC address.
sticky > track > ports > priority Specifies that this ESRP domain should consider election factors in the following order: stickiness, tracking information, active ports, ESRP priority.
sticky > track > ports > priority > mac Specifies that this ESRP domain should consider election factors in the following order: stickiness, tracking information, active ports, ESRP priority, MAC address.
track > ports > priority Specifies that this ESRP domain should consider election factors in the following order: tracking information, active ports, ESRP priority.
track > ports > priority > mac Specifies that this ESRP domain should consider election factors in the following order: tracking information, active ports, ESRP priority, MAC address.
Caution

Caution

All switches in the ESRP network must use the same election algorithm; otherwise, loss of connectivity, broadcast storms, or other unpredictable behavior may occur.
Note

Note

If you have a network that contains a combination of switches running ExtremeXOS software and ExtremeWare, only the ports > track > priority >mac election algorithm is compatible with ExtremeWare releases before version 6.0.