diff options
| author | Donald Sharp <sharpd@nvidia.com> | 2023-05-09 13:10:35 -0400 |
|---|---|---|
| committer | Donald Sharp <sharpd@nvidia.com> | 2023-05-10 08:35:45 -0400 |
| commit | dd2bc4fb406cc9284d35ef623ebb8838cb158bc8 (patch) | |
| tree | 9817fc006bd78436e16531f8c1c8c2c728eb483f /ospfd/ospf_interface.c | |
| parent | 11feb307064c7e170e63fe4515c41174fc791a8a (diff) | |
ospfd: Respect loopback's cost that is set and set loopback costs to 0
When setting an loopback's cost, set the value to 0, unless the operator
has assigned a value for the loopback's cost.
RFC states:
If the state of the interface is Loopback, add a Type 3
link (stub network) as long as this is not an interface
to an unnumbered point-to-point network. The Link ID
should be set to the IP interface address, the Link Data
set to the mask 0xffffffff (indicating a host route),
and the cost set to 0.
FRR is going to allow this to be overridden if the operator specifically
sets a value too.
Fixes: #13472
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
Diffstat (limited to 'ospfd/ospf_interface.c')
| -rw-r--r-- | ospfd/ospf_interface.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/ospfd/ospf_interface.c b/ospfd/ospf_interface.c index 5742ece1f7..f18aa399a4 100644 --- a/ospfd/ospf_interface.c +++ b/ospfd/ospf_interface.c @@ -101,6 +101,9 @@ int ospf_if_get_output_cost(struct ospf_interface *oi) cost = 1; else if (cost > 65535) cost = 65535; + + if (if_is_loopback(oi->ifp)) + cost = 0; } return cost; |