We are pleased to announce FRR release 8.5.2

Debian Packages - https://deb.frrouting.org

RPM Packages - https://rpm.frrouting.org

Snaps - https://snapcraft.io/frr

Docker - quay.io/frrouting/frr:8.5.2

Attention

With the 8.5.0 release, the new BGP attribute AIGP (Accumulated IGP Metric Attribute) was introduced. This new attribute was mistakenly set as Transitive. This was fixed (https://github.com/FRRouting/frr/pull/13471/commits/53afb27eb892a107c9426a01dbba82bee6fa86a7) with the 8.5.2 release, but it's not backward-compatible between 8.5.x versions. We suggest using only the latest version of the 8.5 release.

If you see such errors/notifications, upgrade to the latest 8.5.x versions, and avoid using 8.5.0, and 8.5.1.

AIGP attribute must be flagged as "Transitive"

%NOTIFICATION: received from neighbor X.Y.Z.W 3/4 (UPDATE Message Error/Attribute 
Flags Error) 14 bytes 80 1a 0b 01 00 0b 00 00 00 00 00 00 00 01

(This affects only iBGP sessions).

Bug Fixes

bfdd

• Fix malformed session with vrf
• Remove redundant nb destroy callbacks

bgpd

• Ensure stream received has enough data
• Fix bgpd core when unintern attr
• Fix the json output of show bgp all json to be in a valid format
• Make sure aigp attribute is non-transitive
• Using no pretty json output for l2vpn-evpn routes

lib

• Fix memory leak in in link state
• Fix vtysh core when handling questionmark
• Link state memory corruption

ospfd

• Fix interface param type update
• Fix memory leaks w/ show ip ospf int x json commands
• Ospf opaque lsa stale processing fix and topotests.
• Respect loopback's cost that is set and set loopback costs to 0

pim6d

• Fix crash in ipv6 pim command

pimd

• Pim not sending register packets after changing from non dr to dr

tools

• Fix list value remove in frr-reload

vtysh

• Give actual pam error messages

zebra

• Evpn handle del event for dup detected mac
• Fix dp_out_queued counter to actually reflect real life
• Fix evpn dup detected local mac del event
• Reduce creation and fix memory leak of frrscripting pointers
• Unlock the route node when sending route notifications