RHBA-2025:17127 - Bug Fix Advisory

Topic

An update for ovn25.03 is now available for Fast Datapath for Red Hat Enterprise Linux 9.

Description

OVN, the Open Virtual Network, is a system to support virtual network abstraction. OVN complements the existing capabilities of OVS to add native support for virtual network abstractions, such as virtual L2 and L3 overlays and security groups.

Bug Fix(es) and Enhancement(s):

• selection fileds for OVN LBs and ECMP routes do not support IPv6 addresses (JIRA:FDP-1032)
• [OVN][BGP] Expose config to tweak whether distributed NAT IPs are advertised on all chassis. (JIRA:FDP-1464)
• CLONE [ovn25.03 fast-datapath-rhel-9] - BW limit not applied to VM with VLAN port whose compute's NIC has type=system (JIRA:FDP-1488)
• CLONE [ovn25.03 fast-datapath-rhel-9] - OVN routers cause exact match on IPv6 external addresses in OVS datapath (JIRA:FDP-1559)
• BGP: connected-as-host redistribution requires an LRP with an IP (JIRA:FDP-1563)
• bgp: connected-as-host redistributes nat entries too. (JIRA:FDP-1564)
• [OVN][BGP] ovn-controller should handle old kernels that don't support filtered route netlink dumps (JIRA:FDP-1613)
• CLONE [ovn25.03 fast-datapath-rhel-9] - Packet Loss Between VMs on DPDK Compute Nodes - Issue Persists Despite All Recommendations of KCS(7076184) Applied (JIRA:FDP-1620)
• CLONE [ovn25.03 fast-datapath-rhel-9] - Static MAC binding "referential integrity violation" (JIRA:FDP-1639)
• OVN 25.03 FDP-ovn-25.8 RHEL 9 Release (JIRA:FDP-1669)
• Implement BGP route learning and advertisement in OVN (JIRA:FDP-711)
• Unexpected conditional SNAT (JIRA:FDP-787)

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux Fast Datapath 9 x86_64
• Red Hat Enterprise Linux Fast Datapath (for RHEL Server for IBM Power LE) 9 ppc64le
• Red Hat Enterprise Linux Fast Datapath (for IBM z Systems) 9 s390x
• Red Hat Enterprise Linux Fast Datapath (for RHEL for ARM 64) 9 aarch64

Fixes

• FDP-1032 - selection fileds for OVN LBs and ECMP routes do not support IPv6 addresses
• FDP-1464 - [OVN][BGP] Expose config to tweak whether distributed NAT IPs are advertised on all chassis.
• FDP-1488 - CLONE [ovn25.03 fast-datapath-rhel-9] - BW limit not applied to VM with VLAN port whose compute's NIC has type=system
• FDP-1559 - CLONE [ovn25.03 fast-datapath-rhel-9] - OVN routers cause exact match on IPv6 external addresses in OVS datapath
• FDP-1563 - BGP: connected-as-host redistribution requires an LRP with an IP
• FDP-1564 - bgp: connected-as-host redistributes nat entries too.
• FDP-1613 - [OVN][BGP] ovn-controller should handle old kernels that don't support filtered route netlink dumps
• FDP-1639 - CLONE [ovn25.03 fast-datapath-rhel-9] - Static MAC binding "referential integrity violation"
• FDP-1669 - OVN 25.03 FDP-ovn-25.8 RHEL 9 Release
• FDP-711 - Implement BGP route learning and advertisement in OVN
• FDP-787 - Unexpected conditional SNAT

CVEs

(none)

References

(none)