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| author | Donald Sharp <sharpd@cumulusnetworks.com> | 2015-09-11 10:11:42 -0400 |
|---|---|---|
| committer | Paul Jakma <paul@quagga.net> | 2015-09-24 15:26:43 +0100 |
| commit | 58a83f2f5dc24da3194bfa8255499029315e8649 (patch) | |
| tree | 7dc5143fac70d71814a448ed3116e389d17fe8fa /bgpd | |
| parent | 79969960aae4adbae1eac6caebc289fe09ddc1d6 (diff) | |
| download | quagga-58a83f2f5dc24da3194bfa8255499029315e8649.tar.bz2 quagga-58a83f2f5dc24da3194bfa8255499029315e8649.tar.xz | |
bgpd: Warn user that bgp is setting maximum-paths larger than MULTIPATH_NUM
In cases where a distribution has compiled zebra with a MULTIPATH_NUM
that is less than what the user is setting the maximum-paths in bgp,
warn them that some of the nexthops will not make it into zebra and
by extension the kernel for routing. The command is still accepted.
dell-s6000-02(config)# router bgp 100
dell-s6000-02(config-router)# maximum-paths 3
% Warning: maximum-paths set to 3 is greater than 2 that zebra is compiled to support
dell-s6000-02(config-router)# maximum-paths ibgp 44
% Warning: maximum-paths set to 44 is greater than 2 that zebra is compiled to support
dell-s6000-02(config-router)#
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Diffstat (limited to 'bgpd')
| -rw-r--r-- | bgpd/Makefile.am | 2 | ||||
| -rw-r--r-- | bgpd/bgp_vty.c | 10 |
2 files changed, 11 insertions, 1 deletions
diff --git a/bgpd/Makefile.am b/bgpd/Makefile.am index 4659ac68..b2614f46 100644 --- a/bgpd/Makefile.am +++ b/bgpd/Makefile.am @@ -1,7 +1,7 @@ ## Process this file with automake to produce Makefile.in. AM_CPPFLAGS = -I.. -I$(top_srcdir) -I$(top_srcdir)/lib -I$(top_builddir)/lib -DEFS = @DEFS@ -DSYSCONFDIR=\"$(sysconfdir)/\" +DEFS = @DEFS@ -DSYSCONFDIR=\"$(sysconfdir)/\" -DMULTIPATH_NUM=@MULTIPATH_NUM@ INSTALL_SDATA=@INSTALL@ -m 600 AM_CFLAGS = $(WERROR) diff --git a/bgpd/bgp_vty.c b/bgpd/bgp_vty.c index 62331635..4fd255fc 100644 --- a/bgpd/bgp_vty.c +++ b/bgpd/bgp_vty.c @@ -676,6 +676,11 @@ DEFUN (bgp_maxpaths, return CMD_WARNING; } + if ((MULTIPATH_NUM != 0) && (maxpaths > MULTIPATH_NUM)) + vty_out (vty, + "%% Warning: maximum-paths set to %d is greater than %d that zebra is compiled to support%s", + maxpaths, MULTIPATH_NUM, VTY_NEWLINE); + return CMD_SUCCESS; } @@ -704,6 +709,11 @@ DEFUN (bgp_maxpaths_ibgp, return CMD_WARNING; } + if ((MULTIPATH_NUM != 0) && (maxpaths > MULTIPATH_NUM)) + vty_out (vty, + "%% Warning: maximum-paths set to %d is greater than %d that zebra is compiled to support%s", + maxpaths, MULTIPATH_NUM, VTY_NEWLINE); + return CMD_SUCCESS; } |