Specifications

238 ExtremeWare XOS 11.0 Concepts Guide

Extreme Standby Router Protocol

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

If you have a network that contains a combination of switches running ExtremeWare XOS and

ExtremeWare, only the

ports-track-priority-mac election algorithm is compatible with ExtremeWare

releases prior to version 6.0.

Advanced ESRP Features

This section describes the following advanced ESRP features:

• ESRP Tracking on page 239

• ESRP Port Restart on page 241

• ESRP Host Attach on page 242

• ESRP Groups on page 243

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.

Table 43: ESRP election algorithms (continued)

Election Algorithm Description