Extreme Networks ExtremeWare XOS 11.1, Руководство пользователя

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Advanced ESRP Features
ExtremeWare XOS 11.1 Concepts Guide
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Advanced ESRP Features
This section describes the following advanced ESRP features:
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ESRP Tracking on page 339
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ESRP Port Restart on page 342
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ESRP Host Attach on page 342
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ESRP Port Weight and Don’t Count on page 343
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ESRP Groups on page 344
ESRP Tracking
Tracking information is used to track various forms of connectivity from the ESRP switch to the outside
world. This section describes the following ESRP tracking options:
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ESRP Environment Tracking on page 339
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ESRP VLAN Tracking on page 340
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ESRP Route Table Tracking on page 340
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ESRP Ping Tracking on page 340
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Displaying Tracking Information on page 340
ESRP Environment Tracking
You can configure ESRP to track hardware status. If a power supply fails, if the chassis is overheating,
or if a non-fully loaded power supply is detected, the priority for the ESRP domain will change to the
failover settings.
NOTE
ExtremeWare XOS determines the maximum available power required for the switch by calculating the number of
power supplies and the power required by the installed modules. Enabling environmental tracking on the switch
without enough power budget causes tracking to fail. In this case, the tracking failure occurs by design.
To configure the failover priority for an ESRP domain, follow these steps:
1 Set the failover priority, using the following command:
configure esrp <esrpDomain> add track-environment failover <priority>
2 Assign the priority flag precedence over the active ports count, using the following command:
configure esrp <esrpDomain> election-policy [ports > track > priority | ports >
track > priority > mac | priority > mac | priority > ports > track > mac |
priority > track > ports > mac | sticky > ports > track > priority | sticky >
ports > track > priority > mac | sticky > ports > weight > track > priority >
mac | sticky > priority > mac | sticky > priority > ports > track > mac | sticky
> priority > track > ports > mac | sticky > track > ports > priority > | track >
ports > priority | track > ports > priority > mac >]
Because the priority of both ESRP domains are set to the same value, ESRP will use the active ports
count to determine the master ESRP domain.