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Junos OS Release Notes for vRR

 

These release notes accompany Junos OS Release 20.4R3 for vRR. They describe new and changed features, limitations, and known and resolved problems in the hardware and software.

You can also find these release notes on the Juniper Networks Junos OS Documentation webpage, located at https://www.juniper.net/documentation/product/en_US/junos-os.

What’s New

Learn about new features introduced in the Junos OS main and maintenance releases for vRR.

What's New in Release 20.4R3

There are no new features for vRR in Junos OS Release 20.4R3.

To learn about common BGP or routing Junos OS features supported on vRR for Junos OS Release 20.4R3, see What's New for MX Series routers.

What's New in Release 20.4R2

There are no new features for vRR in Junos OS Release 20.4R2.

To learn about common BGP or routing Junos OS features supported on vRR for Junos OS Release 20.4R2, see What's New   for MX Series routers.

What's New in Release 20.4R1

To learn about common BGP or routing Junos OS features supported on vRR for Junos OS Release 20.4R1, see What's New   for MX Series routers.

Routing Protocols

  • Support for relaxing BGP router ID format from /32 to a nonzero ID per RFC 6286 ( MX204, NFX Series, PTX5000, QFX Series, and vRR)—Starting in Junos OS Release 20.4R1, you can establish a BGP connection using a BGP identifier that is a 4-octet, unsigned, nonzero integer and it needs to be unique only within the autonomous system (AS) per RFC 6286. In earlier releases, the BGP ID of a BGP speaker was required to be a valid IPv4 host address assigned to the BGP speaker.

    To enable this feature, use the bgp-identifier identifier group bgp group name bgp-identifier identifier neighbor peer address bgp-identifier identifier configuration statement at the [edit protocols bgp] hierarchy level.

    [See router-id]

What's Changed

Learn about what changed in the Junos OS main and maintenance releases for vRR.

What’s Changed in Release 20.4R3

There are no changes in behavior or syntax for vRR in Junos OS Release 20.4R3.

To learn more about common BGP or routing changes in behavior or syntax in Junos OS Release 20.4R3, see What's Changed for MX Series routers.

What’s Changed in Release 20.4R2

There are no changes in behavior or syntax for vRR in Junos OS Release 20.4R2.

To learn more about common BGP or routing changes in behavior or syntax in Junos OS Release 20.4R2, see What's Changed   for MX Series routers.

What’s Changed in Release 20.4R1

There are no changes in behavior or syntax for vRR in Junos OS Release 20.4R1.

To learn more about common BGP or routing changes in behavior or syntax in Junos OS Release 20.4R1, see What's Changed   for MX Series routers.

Known Limitations

There are no known limitations for vRR in Junos OS Release 20.4R3.

To learn more about common BGP or routing known limitation in Junos OS Release 20.4R3, see Known Limitations for MX Series routers.

For the most complete and latest information about known Junos OS defects, use the Juniper Networks online Junos Problem Report Search application.

Open Issues

There are no known issues for vRR in Junos OS Release 20.4R3.

To learn more about common BGP or routing open issues in Junos OS Release 20.4R3, see Open Issues for MX Series routers.

For the most complete and latest information about known Junos OS defects, use the Juniper Networks online Junos Problem Report Search application.

Resolved Issues

Learn which issues were resolved in the Junos OS main and maintenance releases for vRR.

For the most complete and latest information about known Junos OS defects, use the Juniper Networks online Junos Problem Report Search application.

Resolved Issues: 20.4R3

To learn more about common BGP or routing resolved issues in Junos OS Release 20.4R3, see Resolved Issues for MX Series routers.

General Routing

  • Option-60 (Vendor-Class-Identifier) is not sent during ZTP. PR1582038

Resolved Issues: 20.4R2

To learn more about common BGP or routing resolved issues in Junos OS Release 20.4R2, see Resolved Issues   for MX Series routers.

General Routing

  • 6PE prefixes might not be removed from RIB upon reception of withdrawal from a BGP neighbor when RIB sharding is enabled. PR1556271

Resolved Issues: 20.4R1

There are no resolved issues for vRR in Junos OS Release 20.4R1.

To learn more about common BGP or routing resolved issues in Junos OS Release 20.4R1, see Resolved Issues   for MX Series routers.