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Merge pull request #4204 from dslicenc/frr-reload-bfd-timers

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tools: frr-reload.py stop bouncing peers on bfd timer change
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Russ White 2019-04-25 18:55:42 -04:00 committed by GitHub
commit 76f5dc181b
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1 changed files with 21 additions and 0 deletions
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tools/frr-reload.py
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@ -741,6 +741,27 @@ def ignore_delete_re_add_lines(lines_to_add, lines_to_del):
lines_to_add_to_del.append((ctx_keys, swpx_interface))
lines_to_add_to_del.append((tmp_ctx_keys, swpx_peergroup))
'''
Changing the bfd timers on neighbors is allowed without doing
a delete/add process. Since doing a "no neighbor blah bfd ..."
will cause the peer to bounce unnecessarily, just skip the delete
and just do the add.
'''
re_nbr_bfd_timers = re.search(r'neighbor (\S+) bfd (\S+) (\S+) (\S+)', line)
if re_nbr_bfd_timers:
nbr = re_nbr_bfd_timers.group(1)
bfd_nbr = "neighbor %s" % nbr
for (ctx_keys, add_line) in lines_to_add:
re_add_nbr_bfd_timers = re.search(r'neighbor (\S+) bfd (\S+) (\S+) (\S+)', add_line)
if re_add_nbr_bfd_timers:
found_add_bfd_nbr = line_exist(lines_to_add, ctx_keys, bfd_nbr, False)
if found_add_bfd_nbr:
lines_to_del_to_del.append((ctx_keys, line))
'''
We changed how we display the neighbor interface command. Older
versions of frr would display the following: