summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--nova/network/manager.py5
1 files changed, 5 insertions, 0 deletions
diff --git a/nova/network/manager.py b/nova/network/manager.py
index c6eba225e..1b8627562 100644
--- a/nova/network/manager.py
+++ b/nova/network/manager.py
@@ -521,6 +521,11 @@ class VlanManager(NetworkManager):
' than 4094'))
fixed_net = IPy.IP(cidr)
+ if fixed_net.len() < num_networks * network_size:
+ raise ValueError(_('The network range is not big enough to fit %s'
+ ' networks of size %s' %
+ (num_networks, network_size)))
+
fixed_net_v6 = IPy.IP(cidr_v6)
network_size_v6 = 1 << 64
significant_bits_v6 = 64