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Merge pull request #8225 from idryzhov/bfd-echo-mode

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bfdd: fix echo receive timer and disable echo mode
This commit is contained in:
Rafael Zalamena 2021-03-17 10:45:43 +00:00 committed by GitHub
commit 692b3561df
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3 changed files with 9 additions and 2 deletions
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4
bfdd/bfd.c
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@ -501,8 +501,10 @@ void ptm_bfd_echo_stop(struct bfd_session *bfd)
void ptm_bfd_echo_start(struct bfd_session *bfd) void ptm_bfd_echo_start(struct bfd_session *bfd)
{ {
bfd->echo_detect_TO = (bfd->remote_detect_mult * bfd->echo_xmt_TO); bfd->echo_detect_TO = (bfd->remote_detect_mult * bfd->echo_xmt_TO);
if (bfd->echo_detect_TO > 0) if (bfd->echo_detect_TO > 0) {
bfd_echo_recvtimer_update(bfd);
ptm_bfd_echo_xmt_TO(bfd); ptm_bfd_echo_xmt_TO(bfd);
}
} }
void ptm_bfd_sess_up(struct bfd_session *bfd) void ptm_bfd_sess_up(struct bfd_session *bfd)

4
bfdd/bfdd_cli.c
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@ -433,6 +433,10 @@ DEFPY_YANG(
return CMD_WARNING_CONFIG_FAILED; return CMD_WARNING_CONFIG_FAILED;
} }
if (!no && !bglobal.bg_use_dplane) {
vty_out(vty, "%% Current implementation of echo mode works only when the peer is also FRR.\n");
}
nb_cli_enqueue_change(vty, "./echo-mode", NB_OP_MODIFY, nb_cli_enqueue_change(vty, "./echo-mode", NB_OP_MODIFY,
no ? "false" : "true"); no ? "false" : "true");
return nb_cli_apply_changes(vty, NULL); return nb_cli_apply_changes(vty, NULL);

3
doc/user/bfd.rst
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@ -180,7 +180,8 @@ BFD peers and profiles share the same BFD session configuration commands.
.. clicmd:: echo-mode .. clicmd:: echo-mode
Enables or disables the echo transmission mode. This mode is disabled Enables or disables the echo transmission mode. This mode is disabled
by default. by default. If you are not using distributed BFD then echo mode works
only when the peer is also FRR.
It is recommended that the transmission interval of control packets It is recommended that the transmission interval of control packets
to be increased after enabling echo-mode to reduce bandwidth usage. to be increased after enabling echo-mode to reduce bandwidth usage.