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bgpd: disable deleting default instance if vrf instances exist

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Problem reported with deleting the default BGP instance where there
are vrf instances that depend on it (like l2vpn evpn vrfs).  Since
importing for vrf route-leaking also requires the existence of the
default instance, disallowing deleting the BGP default instance if
anyt vrf instance is also defined.

Signed-off-by: Don Slice <dslice@cumulusnetworks.com>
This commit is contained in:
Don Slice 2019-04-22 15:12:38 -04:00
parent 528628cb2e
commit dd5868c2cc
1 changed files with 16 additions and 1 deletions
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17
bgpd/bgp_vty.c
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@ -1129,10 +1129,25 @@ DEFUN (no_router_bgp,
}
if (bgp->l3vni) {
vty_out(vty, "%% Please unconfigure l3vni %u",
vty_out(vty, "%% Please unconfigure l3vni %u\n",
bgp->l3vni);
return CMD_WARNING_CONFIG_FAILED;
}
/* Cannot delete default instance if vrf instances exist */
if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) {
struct listnode *node;
struct bgp *tmp_bgp;
for (ALL_LIST_ELEMENTS_RO(bm->bgp, node, tmp_bgp)) {
if (tmp_bgp->inst_type
== BGP_INSTANCE_TYPE_VRF) {
vty_out(vty,
"%% Cannot delete default BGP instance. Dependent VRF instances exist\n");
return CMD_WARNING_CONFIG_FAILED;
}
}
}
}
bgp_delete(bgp);