Allied Telesis AT-8900, RAPIER I, X900-48FE, AT-8700XL Add ospf area, Set ospf area, Show ospf area

Models: AT-9900 AT-8700XL AT-9800 AT-8600 RAPIER I AT-8800 AT-8900 X900-48FE

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Open Shortest Path First Enhancements

Release Note

When the NSSA border router is acting as a translator it sets the Nt bit in router

LSAs it originates into the NSSA.

An elected translator loses its translator role when another NSSA border router with a higher router identifier is elected as translator or an NSSA router configured to always translate gains border router status. When an elected translator loses its translator role, it continues to translate Type-7 LSAs for an additional period of time set by the nssastability parameter. This allows a more stable transition to the newly elected translator and minimises excessive flushing of translated Type-7 LSAs.

The nssatranslator and nssastability parameters are only valid when stubarea is set to nssa.

You can display the current translator role for an area using the command:

show ospf area=area-number

You can display the current translator role for all areas using the command:

show ospf area full

Command Changes

The following table summarises the modified commands:

Command

Change

 

 

add ospf area

New parameter nssatranslator

 

New parameter nssastability

 

 

set ospf area

New parameter nssatranslator

 

New parameter nssastability

 

 

show ospf area

New output parameter Role

 

New output parameter Stability Interval

 

New output parameter State

 

 

Software Version 2.8.1 C613-10477-00 REV B

Page 90
Image 90
Allied Telesis AT-8900, RAPIER I, X900-48FE, AT-8700XL, AT-9900, AT-8600, AT-9800 Add ospf area, Set ospf area, Show ospf area