diff options
| -rw-r--r-- | ospfd/ospf_lsa.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/ospfd/ospf_lsa.h b/ospfd/ospf_lsa.h index 297cd984..6c95ff17 100644 --- a/ospfd/ospf_lsa.h +++ b/ospfd/ospf_lsa.h @@ -153,7 +153,14 @@ struct router_lsa_link }; /* OSPF Router-LSAs structure. */ -#define OSPF_ROUTER_LSA_MIN_SIZE 16U /* w/1 link descriptor */ +#define OSPF_ROUTER_LSA_MIN_SIZE 4U /* w/0 link descriptors */ +/* There is an edge case, when number of links in a Router-LSA may be 0 without + breaking the specification. A router, which has no other links to backbone + area besides one virtual link, will not put any VL descriptor blocks into + the Router-LSA generated for area 0 until a full adjacency over the VL is + reached (RFC2328 12.4.1.3). In this case the Router-LSA initially received + by the other end of the VL will have 0 link descriptor blocks, but soon will + be replaced with the next revision having 1 descriptor block. */ struct router_lsa { struct lsa_header header; |