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b5469d021c
Suppose we have a bridge with a host and two routers attached
to it.
r1 r2
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--------
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host
host is sending traffic.
r1 and r2 are pim neighbors and r2 is the DR.
Both r1 and r2 will receive data from the stream up the pim
kernel socket. r1 will notice that it is not the DR and
stop processing in pim. This code adds a bit more code to blackhole
the route when r1 detects it is not the DR in this scenario.
This is being done because the kernel is both keeping state and
sending data to the pim process to continue processing this.
Additionally if we happen to be running this on a asic, then
blackholing the route in the asic can save a significant amount
of cpu time handling this situation.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
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| .. | ||
| .gitignore | ||
| AUTHORS | ||
| CAVEATS | ||
| COMMANDS | ||
| COPYING | ||
| DEBUG | ||
| LINUX_KERNEL_MROUTE_MFC | ||
| Makefile | ||
| mtracebis_netlink.c | ||
| mtracebis_netlink.h | ||
| mtracebis_routeget.c | ||
| mtracebis_routeget.h | ||
| mtracebis.c | ||
| pim_assert.c | ||
| pim_assert.h | ||
| pim_bfd.c | ||
| pim_bfd.h | ||
| pim_br.c | ||
| pim_br.h | ||
| pim_cmd.c | ||
| pim_cmd.h | ||
| pim_errors.c | ||
| pim_errors.h | ||
| pim_hello.c | ||
| pim_hello.h | ||
| pim_iface.c | ||
| pim_iface.h | ||
| pim_ifchannel.c | ||
| pim_ifchannel.h | ||
| pim_igmp_join.h | ||
| pim_igmp_mtrace.c | ||
| pim_igmp_mtrace.h | ||
| pim_igmp_stats.c | ||
| pim_igmp_stats.h | ||
| pim_igmp.c | ||
| pim_igmp.h | ||
| pim_igmpv2.c | ||
| pim_igmpv2.h | ||
| pim_igmpv3.c | ||
| pim_igmpv3.h | ||
| pim_instance.c | ||
| pim_instance.h | ||
| pim_int.c | ||
| pim_int.h | ||
| pim_join.c | ||
| pim_join.h | ||
| pim_jp_agg.c | ||
| pim_jp_agg.h | ||
| pim_macro.c | ||
| pim_macro.h | ||
| pim_main.c | ||
| pim_memory.c | ||
| pim_memory.h | ||
| pim_mroute.c | ||
| pim_mroute.h | ||
| pim_msdp_packet.c | ||
| pim_msdp_packet.h | ||
| pim_msdp_socket.c | ||
| pim_msdp_socket.h | ||
| pim_msdp.c | ||
| pim_msdp.h | ||
| pim_msg.c | ||
| pim_msg.h | ||
| pim_neighbor.c | ||
| pim_neighbor.h | ||
| pim_nht.c | ||
| pim_nht.h | ||
| pim_oil.c | ||
| pim_oil.h | ||
| pim_pim.c | ||
| pim_pim.h | ||
| pim_register.c | ||
| pim_register.h | ||
| pim_routemap.c | ||
| pim_rp.c | ||
| pim_rp.h | ||
| pim_rpf.c | ||
| pim_rpf.h | ||
| pim_signals.c | ||
| pim_signals.h | ||
| pim_sock.c | ||
| pim_sock.h | ||
| pim_ssm.c | ||
| pim_ssm.h | ||
| pim_ssmpingd.c | ||
| pim_ssmpingd.h | ||
| pim_static.c | ||
| pim_static.h | ||
| pim_str.c | ||
| pim_str.h | ||
| pim_time.c | ||
| pim_time.h | ||
| pim_tlv.c | ||
| pim_tlv.h | ||
| pim_upstream.c | ||
| pim_upstream.h | ||
| pim_util.c | ||
| pim_util.h | ||
| pim_version.c | ||
| pim_version.h | ||
| pim_vty.c | ||
| pim_vty.h | ||
| pim_zebra.c | ||
| pim_zebra.h | ||
| pim_zlookup.c | ||
| pim_zlookup.h | ||
| pimd.c | ||
| pimd.conf.sample | ||
| pimd.h | ||
| README | ||
| subdir.am | ||
| test_igmpv3_join.c | ||
| TODO | ||
| TROUBLESHOOTING | ||
INTRODUCTION
qpimd aims to implement a PIM (Protocol Independent Multicast)
daemon for the FRR Routing Suite.
qpimd implements PIM-SM (Sparse Mode) of RFC 4601.
Additionally MSDP has been implemented.
In order to deliver end-to-end multicast routing control
plane, qpimd includes the router-side of IGMPv[2|3] (RFC 3376).
LICENSE
qpimd - pimd for FRR
Copyright (C) 2008 Everton da Silva Marques
qpimd is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2,
or (at your option) any later version.
qpimd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public
License along with qpimd; see the file COPYING. If not, write
to the Free Software Foundation, Inc., 59 Temple Place - Suite
330, Boston, MA 02111-1307, USA.
HOME SITE
qpimd lives at:
https://github.com/freerangerouting/frr
PLATFORMS
qpimd has been tested with Debian Jessie.
REQUIREMENTS
qpimd requires FRR (2.0 or higher)
CONFIGURATION COMMANDS
See available commands in the file pimd/COMMANDS.
KNOWN CAVEATS
See list of known caveats in the file pimd/CAVEATS.
SUPPORT
Please post comments, questions, patches, bug reports at the
support site:
https://freerangerouting/frr
RELATED WORK
igmprt: An IGMPv3-router implementation
- http://www.loria.fr/~lahmadi/igmpv3-router.html
USC pimd: PIMv2-SM daemon
- http://netweb.usc.edu/pim/pimd (URL broken in 2008-12-23)
- http://packages.debian.org/source/sid/pimd (from Debian)
troglobit pimd: This is the original USC pimd from
http://netweb.usc.edu/pim/. In January 16, 2010 it was revived
with the intention to collect patches floating around in
Debian, Gentoo, Lintrack and other distribution repositories
and to provide a central point of collaboration.
- http://github.com/troglobit/pimd
zpimd: zpimd is not dependent of zebra or any other routing daemon
- ftp://robur.slu.se/pub/Routing/Zebra
- http://sunsite2.icm.edu.pl/pub/unix/routing/zpimd
mrd6: an IPv6 Multicast Router for Linux systems
- http://fivebits.net/proj/mrd6/
MBGP: Implementation of RFC 2858 for Quagga
- git://git.coplanar.net/~balajig/quagga
- http://www.gossamer-threads.com/lists/quagga/dev/18000
REFERENCES
IANA Protocol Independent Multicast (PIM) Parameters
http://www.iana.org/assignments/pim-parameters/pim-parameters.txt
Address Family Numbers
http://www.iana.org/assignments/address-family-numbers
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