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FRR 7.4 Release
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@qlyoung qlyoung released this 13 Jul 20:03
· 17691 commits to master since this release
frr-7.4
e4dcf10
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mwinter-osr Martin Winter
GPG key ID: 05A4ECF8C0102306
Learn about vigilant mode.

We are pleased to announce FRR 7.4. Thank you to all contributors.

Major additions in this release include:

  • Segment Routing support for IS-IS
  • BGP Graceful Restart
  • BGP link bandwidth extended community support
  • Full support for Python 3 (all platforms except Centos 6)

As of this release, we no longer accept patches via our mailing list.

Debian Packages - https://deb.frrouting.org/
RPM Packages - https://rpm.frrouting.org/
Snaps - https://snapcraft.io/frr

Changelog

Major Behavior Changes

  • RFC 8212 is now enabled by default. BGP will not advertise or use routes unless explicitly configured to do so with an export or import policy.

All daemons:

  • Performance improvements for route-maps

bfdd

  • Improve debugging capabilities
  • Fixes for VRF support
  • Fix tx of garbage stack data in BFD packets
  • Fix transmission timer calculation to match RFC 5880

bgpd

  • Added additional information to EVPN JSON output
  • Added ability to display large communities in default VRF
  • Added ability to use add/subtract semantics for local-preference in route-maps
  • Added ability to match on IPv4 nexthops in route-maps
  • Added log message when router ID collision occurs during session bringup
  • Added command to show listener sockets
  • Added JSON support for statistics command
  • Added statistics command for L2VPN EVPN address family
  • Added support for link bandwidth extended community
  • Added support for RFC 7607
  • Added support for RFC 6286
  • Added support for graceful restart
  • Added support for SRv6 VPNv4 Prefix SID subtypes 4 and 5
  • Added ability to set dampening on address families other than IPv4 unicast
  • PfxSnt column in peer display output now reads "(Policy)" when no eBGP policy
    is set
  • Number of prefixes sent is now shown when displaying AFI/SAFI information
  • Static redistributed routes are no longer suppressed due to martian nexthop
  • RFC 8212 is now enabled by default
  • Ingress packet queue in peer display now reflects reality instead of a
    hardcoded 0
  • Weighted ECMP is now used when multipaths have link bandwidth information
  • Allow overriding ORIGIN attribute for aggregate-address
  • Improved BFD handling in event of peering failure
  • Improved status messages for peers who fail to establish
  • Indicate that prefix is malformed if aggregated by AS0 when showing prefix
  • Malformed extended and large community attributes are now handled with
    treat-as-withdraw strategy, per RFC 7606
  • Ignore aggregator attribute if it is 0.0.0.0, per RFC 7606
  • Zero-length cluster list attributes are now handled with treat-as-withdraw
    strategy
  • Malformed EVPN Type-5 messages have improved treat-as-withdraw handling
  • UPDATE messages with global nexthop set to :: are no longer discarded
  • Static default route is no longer withdrawn when configuring default-originate
  • Deleting numbered peers now always disables RAs for them
  • Fix memory leak when parsing OPEN messages containing multiple oddly
    formatted FQDN capabilities
  • Fix memory leak in some EVPN JSON show commands
  • Fix handling of Flowspec NLRIs longer than 240 bytes
  • Fix various Flowspec issues
  • Fix rare crash when asking Zebra to send RA on our behalf
  • Fix rare crash when issuing clear
  • Fix handling of source instance router-id update when using route leaking
  • Fix SNMP & BMP reporting of whether a session just went to Established
  • Fix various memory issues

isisd

  • Initial segment routing support per
    draft-ietf-isis-segment-routing-extensions-25
  • Circuits are no longer destroyed when the underlying interface is deleted
  • Support MTUs up to 16k (previous max was 8k)
  • Fix issues with reloading hello-interval command

ldpd

  • Add support for LDP ordered label distribution
  • Ingress packets coming through broken LSP are no longer dropped
  • Reloading configs after removing address-family blocks now works
  • ACL rule modifications are now respected
  • Correct DSCP byte is now set for both sides of LDP peering

nhrpd

  • Added MTU and hold time to resolution request CIE, per RFC 2332
  • Added JSON support for some commands
  • Fix netlink handling for lladdr messages
  • Fix integer underflow

ospfd

  • Fix incorrect range check on metric values
  • Fix UAF upon RX of self-originated LSA
  • Fix length checks when validating RX'd LSAs
  • Fixes for multi-instance OSPF

ospf6d

  • Fix infinite loop when multiple ABRs acting as ASBRs in the same area were
    present

pbrd

  • Allow deconfiguring table ranges
  • Fix reloading failures around VRF related config
  • Improve handling of set and match statements in pbr-map

pimd

  • Add rpAddress key to JSON output for PIM rp-info
  • Add support for setting IGMP group count watermarks
  • Add no ip msdp mesh-group command to remove mesh groups
  • JSON output for IGMP groups now lists groups in an array
  • Drop JOIN, HELLO and ASSERT messages not destined for all-pim-routers address
  • Change all JSON keys for BSM-related output to camelCase
  • Fix incorrect BSR election
  • Fix various VXLAN issues
  • Fix various BSM issues
  • Fix various crashes
  • Fix various memory leaks

sharpd

  • Added ability to install & remove LSPs
  • Added ability to spam log messages
  • Improve support for modifying route labels

staticd

  • Improved debugging capabilities

vrrpd

  • Fix several crashes related to deleting in-use VRFs and interfaces

zebra

  • Added ability to toggle use of kernel nexthop IDs
  • Added ability to set hoplimit for IPv6 RA's
  • Added ability to set retransmit timer for IPv6 RA's
  • Added support for IPv6 blackhole routes on *BSD
  • Nexthop weight is now displayed in JSON output when showing nexthops
  • Backup nexthops are now shown when displaying routes
  • Hardened ZAPI interface against corrupt messages
  • Router Advertisements now contain all IPv6 global interfaces on the egress
    interface, per RFC 4861
  • Force reinstallation of EVPN-VXLAN flooding MAC if it is deleted from the
    kernel
  • Fix missing weight value when installing V4 routes with V6 nexthops
  • Fix various obscure memory leaks
  • Fix learned kernel routes with admin distance of 255 not being marked as
    installed
  • Fix IRDP checksum calculation
  • Fix memory leak related to IPv6 RA's on shutdown
  • Fix FPM sequencing issue when sending RMAC
  • Fix intermittent 30 second delay when configuring LDP psuedowires

Miscellaneous

  • vtysh can now load config files via a new CLI command
  • Certain syslog messages related to daemon startup were incorrectly indicated
    as errors; they are now marked as information

Internal improvements

  • Reloading performance improved
  • Route-maps converted to use Northbound API
  • Zebra gained Northbound support for some operational data
  • Zebra had some commands converted to Northbound API
  • Support for GCC 10

Packaging

Packaging work for this release is ongoing.

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