diff options
Diffstat (limited to '')
| -rw-r--r-- | isisd/isis_lfa.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/isisd/isis_lfa.c b/isisd/isis_lfa.c index 085177b94..b535924e9 100644 --- a/isisd/isis_lfa.c +++ b/isisd/isis_lfa.c @@ -1148,10 +1148,13 @@ static void lfa_calc_pq_spaces(struct isis_spftree *spftree_pc, /* * Compute the reverse SPF in the behalf of the node - * adjacent to the failure. + * adjacent to the failure, if we haven't done that + * before */ - adj_node->lfa.spftree_reverse = - isis_spf_reverse_run(adj_node->lfa.spftree); + if (!adj_node->lfa.spftree_reverse) + adj_node->lfa.spftree_reverse = + isis_spf_reverse_run( + adj_node->lfa.spftree); lfa_calc_reach_nodes(adj_node->lfa.spftree_reverse, spftree_reverse, adj_nodes, false, |