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The FRRouting Protocol Suite
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Don Slice 4d0e7a49cf bgpd: VRF-Lite fix default bgp delete 
1. bgp coredump is observed when we delete default bgp instance
   when we have multi-vrf; and route-leaking is enabled between
   default, non-default vrfs.
Removing default router bgp when routes leaked between non-default vrfs.
- Routes are leaked from VRF-A to VRF-B
- VPN table is created with auto RD/RT in default instance.
- Default instance is deleted, we try to unimport the routes from all VRFs
- non-default VRF schedules a work-queue to process deleted routes.
- Meanwhile default bgp instance clears VPN tables and free the route
  entries as well, which are still referenced by non-default VRFs which
  have imported routes.
- When work queue process starts to delete imported route in VRF-A it cores
  as it accesses freed memory.

- Whenever we delete bgp in default vrf, we skip deleting routes in the vpn
  table, import and export lists.
- The default hidden bgp instance will not be listed in any of the show
  commands.
- Whenever we create new default instance, handle it with AS number change
  i.e. old hidden default bgp's AS number is updated and also changing
  local_as for all peers.

2. A default instance is created with ASN of the vrf with the import
  statement.
  This may not be the ASN desired for the default table
- First problem with current behavior.
  Define two vrfs with different ASNs and then add import between.
  starting without any bgp config (no default instance)
  A default instance is created with ASN of the vrf with the import
  statement.
  This may not be the ASN desired for the default table
- Second related problem.  Start with a default instance and a vrf in a
  different ASN. Do an import statement in the vrf for a bgp vrf instance
  not yet defined and it auto-creates that bgp/vrf instance and it inherits
  the ASN of the importing vrf
- Handle bgp instances with different ASNs and handle ASN for auto created
  BGP instance

Signed-off-by: Kantesh Mundaragi <kmundaragi@vmware.com>
2024-09-18 18:03:10 +03:00
.github ci: do apt-get update before installing required modules 2024-06-08 17:29:19 -04:00
alpine docker: Set ABUILD_APK_INDEX_OPTS for frr build 2024-06-14 16:33:32 +03:00
babeld babeld: changes for code maintainability 2024-09-06 07:02:51 +05:30
bfdd bfdd: remove control socket obsolete code 2024-07-25 10:37:11 -03:00
bgpd bgpd: VRF-Lite fix default bgp delete 2024-09-18 18:03:10 +03:00
debian debian: Add option to build pkg with grpc support 2024-06-20 12:14:48 +02:00
doc Merge pull request #16720 from opensourcerouting/fix/default_originate_not_needed_if_not_enabled 2024-09-18 10:11:23 -04:00
docker docker: Set ABUILD_APK_INDEX_OPTS for libyang 2024-06-14 11:37:23 +03:00
eigrpd *: Modify agentx to be allowed to be called 2024-05-10 10:16:29 -04:00
fpm *: add XREF_SETUP() to libraries and utilites 2024-05-02 23:03:08 +02:00
gdb lib: add simplified native msg support 2023-12-26 08:34:56 -05:00
grpc build: throw in a few more XREF_SETUP 2024-05-09 18:02:49 +02:00
include build: include our own copy of if.h and dependencies 2024-04-26 17:11:53 +02:00
isisd isisd: fix rcap tlv double-free crash 2024-09-16 14:47:38 +02:00
ldpd ldpd: fix wrong gtsm count 2024-06-15 23:30:18 +08:00
lib mgmtd: add ietf-yang-library support 2024-09-17 22:27:36 -04:00
m4 build: add recursion limit for AX_RECURSIVE_EVAL 2024-01-27 19:01:19 +01:00
mgmtd mgmtd: add ietf-yang-library support 2024-09-17 22:27:36 -04:00
mlag build: throw in a few more XREF_SETUP 2024-05-09 18:02:49 +02:00
nhrpd nhrpd: fixes duplicate auth extension 2024-09-12 07:28:28 +00:00
ospf6d Merge pull request #16050 from rgirada/ospfv3_helper 2024-06-11 11:48:05 -04:00
ospfclient tools, ospfclient: add a config option to skip installing python scripts 2024-08-22 13:46:30 -05:00
ospfd ospfd: fix missing '[no]ip ospf graceful-restart hello-delay <N>' commands 2024-09-13 16:26:04 +03:00
pathd *: Create termtable specific temp memory 2024-09-01 13:07:46 -04:00
pbrd lib: common debug status output 2024-08-27 09:53:02 -04:00
pceplib Merge pull request #15215 from donaldsharp/pceplib_fixup 2024-01-25 09:59:59 +02:00
pimd pimd: use vty_json 2024-09-13 23:32:56 -05:00
pkgsrc build: homologize path handling 2024-01-27 19:02:52 +01:00
python vtysh, lib: preprocess CLI graphs 2024-07-31 08:08:53 -04:00
qpb *: add XREF_SETUP() to libraries and utilites 2024-05-02 23:03:08 +02:00
redhat redhat: Add option to build pkg with grpc support 2024-06-20 12:14:56 +02:00
ripd ripd: fix show run output for distribute-list 2024-08-08 01:25:02 +03:00
ripngd ripngd: adjust header for display command 2024-07-05 09:31:39 +08:00
sharpd sharpd: Eliminate leaked list for locator-chunks 2024-08-08 14:24:59 -04:00
snapcraft bfdd: remove control socket obsolete code 2024-07-25 10:37:11 -03:00
staticd lib: common debug status output 2024-08-27 09:53:02 -04:00
tests tests: add test for new ietf-yang-library support 2024-09-17 22:27:36 -04:00
tools Merge pull request #16733 from gtataranni/fix/regex-string 2024-09-04 08:13:19 +03:00
vrrpd *: Create termtable specific temp memory 2024-09-01 13:07:46 -04:00
vtysh Merge pull request #16664 from mjstapp/igor_debug_simplify 2024-08-29 11:51:53 -04:00
watchfrr build: homologize path handling 2024-01-27 19:02:52 +01:00
yang Merge pull request #16438 from Jafaral/pim-10.1-cand-rp 2024-09-13 19:45:57 -04:00
zebra zebra: include the prefix in nht show command 2024-09-14 23:47:00 -07:00
.clang-format tools: Ignore ALIAS_* macros for clang-formatter 2024-07-17 08:10:13 +03:00
.dockerignore docker: Make docker image on CentOS 7 2019-11-26 19:29:30 +00:00
.flake8 style: add format checker config that matches FRR style standards 2023-04-18 05:18:26 -04:00
.git-blame-ignore-revs tools: Add black formatting commit to .git-blame-ignore-revs 2024-04-28 12:50:51 +03:00
.gitignore python: add tool to expand typesafe definitions 2024-04-29 17:37:49 +02:00
.isort.cfg style: add format checker config that matches FRR style standards 2023-04-18 05:18:26 -04:00
.pylintrc style: add format checker config that matches FRR style standards 2023-04-18 05:18:26 -04:00
.travis.yml lib: libyang2 add missed conversion 2021-05-17 22:13:59 -04:00
bootstrap.sh build: turn on automake warnings (& symlinks) 2021-04-21 15:42:37 +02:00
buildtest.sh build: update packaging & docs for dir changes 2024-01-27 19:01:19 +01:00
config.version.in build: carry --with-pkg-extra-version into tarballs 2018-10-24 15:11:50 +02:00
configure.ac Merge pull request #16610 from Jafaral/no-py 2024-08-27 10:38:09 -04:00
COPYING *: sort out & explain licenses used in FRR 2023-02-09 12:46:13 +01:00
Makefile.am build: homologize path handling 2024-01-27 19:02:52 +01:00
README.md doc: Fix the link that points to Slack invitation in README 2022-03-24 13:13:37 +02:00
stamp-h.in Initial revision 2002-12-13 20:15:29 +00:00
version.h build: make builddir include path consistent 2021-04-21 15:42:33 +02:00

README.md

Icon

FRRouting

FRR is free software that implements and manages various IPv4 and IPv6 routing protocols. It runs on nearly all distributions of Linux and BSD and supports all modern CPU architectures.

FRR currently supports the following protocols:

  • BGP
  • OSPFv2
  • OSPFv3
  • RIPv1
  • RIPv2
  • RIPng
  • IS-IS
  • PIM-SM/MSDP
  • LDP
  • BFD
  • Babel
  • PBR
  • OpenFabric
  • VRRP
  • EIGRP (alpha)
  • NHRP (alpha)

Installation & Use

For source tarballs, see the releases page.

For Debian and its derivatives, use the APT repository at https://deb.frrouting.org/.

Instructions on building and installing from source for supported platforms may be found in the developer docs.

Once installed, please refer to the user guide for instructions on use.

Community

The FRRouting email list server is located here and offers the following public lists:

Topic List
Development dev@lists.frrouting.org
Users & Operators frog@lists.frrouting.org
Announcements announce@lists.frrouting.org

For chat, we currently use Slack. You can join by clicking the "Slack" link under the Participate section of our website.

Contributing

FRR maintains developer's documentation which contains the project workflow and expectations for contributors. Some technical documentation on project internals is also available.

We welcome and appreciate all contributions, no matter how small!

Security

To report security issues, please use our security mailing list:

security [at] lists.frrouting.org