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lynne f3abc412a5 isisd: Fix Attach-bit processing 
The purpose of the Attach-bit is to accomplish inter-area routing.  In other
venders, the Attached-bit is automatically set when a router is configured
as a L1|L2 router and has two adjacencies.  When a L1 router receives a LSP
with the Attached-bit set it is supposed to create a default route pointing
toward the neighbor to provide a default path out of the L1 area.

ISIS implementation has been fixed to support the above definition:
Setting the Attach-bit is now the default behavior and we allow the user to
turn it off.

We will only set the Default Attach-bit when creating a L1 LSP, if we are
a L1|L2 router and have a L2 adjacency up.

When a L1 router receives a LSP with the Attach-bit set, we will create a
default route pointing to the L1|L2 router as the nexthop.

The default route will be removed if the LSP is received with the Attach-bit
cleared.

Signed-off-by: Lynne Morrison <lynne@voltanet.io>
2021-01-20 09:24:35 -05:00
..
.gitignore *: cleanup .gitignore files 2018-09-08 21:30:42 +02:00
AUTHORS Add support of Traffic Engineering to IS-IS 2016-09-03 11:05:50 -04:00
fabricd.c * : update signature of thread_cancel api 2020-10-23 08:59:34 -04:00
fabricd.conf.sample fabricd: add new daemon as build of isisd 2018-09-05 11:38:12 +02:00
fabricd.h *: use the current project name (FRRouting) 2020-03-25 17:38:56 -04:00
isis_adjacency.c *: unify thread/event cancel macros 2020-10-23 12:16:52 -04:00
isis_adjacency.h isisd: if IS-IS is configured for v6, prefer v6 bfd sessions 2021-01-14 14:34:08 -05:00
isis_bfd.c isisd: if IS-IS is configured for v6, prefer v6 bfd sessions 2021-01-14 14:34:08 -05:00
isis_bfd.h *: add BFD profile support for IS-IS 2020-07-10 11:28:43 +00:00
isis_bpf.c isisd: fix uninitialized variable 2020-11-18 19:07:49 +03:00
isis_circuit.c Merge pull request #7550 from volta-networks/fix_bfd_isis 2021-01-19 19:50:24 -05:00
isis_circuit.h Merge pull request #7550 from volta-networks/fix_bfd_isis 2021-01-19 19:50:24 -05:00
isis_cli.c isisd: Fix Attach-bit processing 2021-01-20 09:24:35 -05:00
isis_common.h *: use C99 standard fixed-width integer types 2018-03-27 15:13:34 -04:00
isis_constants.h isisd: Fix Attach-bit processing 2021-01-20 09:24:35 -05:00
isis_csm.c isisd: Always set circuit->isis on creation 2020-10-09 08:14:00 -04:00
isis_csm.h *: reindent 2017-07-17 14:04:07 +02:00
isis_dlpi.c *: un-split strings across lines 2020-07-14 10:37:25 +02:00
isis_dr.c *: unify thread/event cancel macros 2020-10-23 12:16:52 -04:00
isis_dr.h isisd: reduce code duplication for levels 2018-12-04 12:49:25 +01:00
isis_dynhn.c tests, isisd: add IS-IS SPF unit tests 2020-08-26 20:16:19 -03:00
isis_dynhn.h tests, isisd: add IS-IS SPF unit tests 2020-08-26 20:16:19 -03:00
isis_errors.c isisd: detect Prefix-SID collisions and handle them appropriately 2020-11-04 17:12:30 -03:00
isis_errors.h isisd: detect Prefix-SID collisions and handle them appropriately 2020-11-04 17:12:30 -03:00
isis_events.c *: unify thread/event cancel macros 2020-10-23 12:16:52 -04:00
isis_events.h isisd: Replace isis_event_adjacency_state_change with a hook 2018-10-05 14:05:28 +02:00
isis_flags.c *: use C99 standard fixed-width integer types 2018-03-27 15:13:34 -04:00
isis_flags.h *: use C99 standard fixed-width integer types 2018-03-27 15:13:34 -04:00
isis_ldp_sync.c isisd, ospfd: update 'client close' callback to 'ldp fail' api 2020-12-10 13:35:34 -05:00
isis_ldp_sync.h ldpd, isisd, ospfd: Remove periodic ldp-sync hello message 2020-12-09 14:11:38 -05:00
isis_lfa.c isisd: remove two overly verbose LFA debug messages 2021-01-08 22:22:11 -03:00
isis_lfa.h isisd: implement Remote LFA 2021-01-08 22:22:11 -03:00
isis_lsp.c isisd: Fix Attach-bit processing 2021-01-20 09:24:35 -05:00
isis_lsp.h isisd: introduce two LSP iteration functions 2020-08-26 20:16:19 -03:00
isis_main.c isisd: implement Remote LFA 2021-01-08 22:22:11 -03:00
isis_memory.c isisd: implement Remote LFA 2021-01-08 22:22:11 -03:00
isis_memory.h isisd: implement Remote LFA 2021-01-08 22:22:11 -03:00
isis_misc.c tests, isisd: add IS-IS SPF unit tests 2020-08-26 20:16:19 -03:00
isis_misc.h isisd: minor cleanup 2020-08-26 20:16:19 -03:00
isis_mt.c *: remove PRI[udx](8|16|32) 2020-07-14 10:43:40 +02:00
isis_mt.h *: use the current project name (FRRouting) 2020-03-25 17:38:56 -04:00
isis_nb_config.c isisd: Fix Attach-bit processing 2021-01-20 09:24:35 -05:00
isis_nb_notifications.c isisd: split northbound callbacks into multiple files 2019-10-29 21:49:14 -03:00
isis_nb_state.c isisd, yang: move IS-IS interface state data to the appropriate place 2020-05-15 23:47:43 -03:00
isis_nb.c isisd: Fix Attach-bit processing 2021-01-20 09:24:35 -05:00
isis_nb.h isisd: Fix Attach-bit processing 2021-01-20 09:24:35 -05:00
isis_network.h *: use C99 standard fixed-width integer types 2018-03-27 15:13:34 -04:00
isis_pdu_counter.c Minor adjustments to address CI warnings 2018-12-12 00:23:23 +00:00
isis_pdu_counter.h isisd: Provide statistics about sent/received PDU count 2018-12-07 19:45:14 +00:00
isis_pdu.c isisd: Fix Attach-bit processing 2021-01-20 09:24:35 -05:00
isis_pdu.h isisd: Add debug output for tx-queues 2018-12-07 19:45:14 +00:00
isis_pfpacket.c *: un-split strings across lines 2020-07-14 10:37:25 +02:00
isis_redist.c Merge pull request #7523 from donaldsharp/route_map_object_t 2020-11-17 07:16:12 -05:00
isis_redist.h isisd: Free created tables 2020-11-14 18:20:21 -05:00
isis_route.c isisd: implement Remote LFA 2021-01-08 22:22:11 -03:00
isis_route.h isisd: implement Remote LFA 2021-01-08 22:22:11 -03:00
isis_routemap.c *: Remove route_map_object_t from the system 2020-11-13 19:35:20 -05:00
isis_routemap.h *: reindent 2017-07-17 14:04:07 +02:00
isis_spf_private.h isisd: implement Remote LFA 2021-01-08 22:22:11 -03:00
isis_spf.c isisd: Fix Attach-bit processing 2021-01-20 09:24:35 -05:00
isis_spf.h isisd: implement Remote LFA 2021-01-08 22:22:11 -03:00
isis_sr.c Merge pull request #7184 from opensourcerouting/anycast-sids-v4 2020-10-23 21:03:55 +02:00
isis_sr.h isisd: add support for Anycast-SIDs 2020-10-23 10:31:39 -03:00
isis_te.c isisd: replace inet_ntoa 2020-10-22 16:25:41 -04:00
isis_te.h isisd: Update TLVs processing for TE, RI & SR 2019-09-17 17:35:50 +02:00
isis_tlvs.c isisd: fix null pointer dereference when parsing LSP 2020-12-09 12:21:33 -03:00
isis_tlvs.h isisd: move and rename the infinity metric constants 2020-11-24 20:15:51 -03:00
isis_tx_queue.c * : update signature of thread_cancel api 2020-10-23 08:59:34 -04:00
isis_tx_queue.h *: use the current project name (FRRouting) 2020-03-25 17:38:56 -04:00
isis_vty_fabricd.c isisd : Transformational changes to support different VRFs. 2020-08-14 13:46:22 -07:00
isis_zebra.c isisd: implement Remote LFA 2021-01-08 22:22:11 -03:00
isis_zebra.h isisd: implement Remote LFA 2021-01-08 22:22:11 -03:00
isisd.c isisd: Fix Attach-bit processing 2021-01-20 09:24:35 -05:00
isisd.conf.sample Isisd is now able to remove addresses from circuit and trigger LSP updates 2004-09-14 13:54:30 +00:00
isisd.h isisd: Fix Attach-bit processing 2021-01-20 09:24:35 -05:00
iso_checksum.c *: use C99 standard fixed-width integer types 2018-03-27 15:13:34 -04:00
iso_checksum.h *: use C99 standard fixed-width integer types 2018-03-27 15:13:34 -04:00
Makefile build: non-recursive isisd 2017-08-04 11:09:50 +02:00
README More cleanup in isisd. 2005-01-01 21:12:56 +00:00
subdir.am isisd: add support for Topology Independent LFA (TI-LFA) 2020-10-14 16:27:37 -03:00

README 

Constraints

  o Maximum number of interfaces 255