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2014-05-06 22:49:20 -0500 answered a question Glance - HTTPInternalServerError (HTTP 500)

Drop the glance database and set the character set to utf8 mysql -u root -e "CREATE DATABASE glance DEFAULT CHARACTER SET utf8";

then, do db sync

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2013-09-27 01:06:01 -0500 answered a question What are the current limits for the number of tenants networks for VLAN and GRE in Neutron?

VLAN = 4096 ; 1.802.1Q has a 12-bit VLAN ID field, which has a theoretical limit of 212=4096 tags

GRE - there may be factors such as memory constraints that will place practical limits on how many tunnels you can support. But there is also a hard limit on the number of tunnels that you can configure. That limit is based on the limitation of the number of IDBs supported by your router. The IDB is the Interface Descriptor Block and each interface (physical, or tunnel, or loopback, or whatever) requires an IDB. The number of IDBs will vary by platform and sometimes by release level of the code that you are running. You can use the privileged command show idb to see what the limitation is on your router. On the 1841 router that I just checked the limit on IDB is 1200 (which is a pretty large number - I believe that you would encounter other limits on performance or on size of configuration before you exhaust the IDB limit).

2013-08-29 13:01:05 -0500 answered a question The external gateway on router in openstack grizzly all in one on virtual box is down what i should do ?

That is normal behavior. It is expected to be fixed in Havana. Here are the tips: 1. Ensure the VM instance got an IP address..look at console.log

  1. Ext NIC settings – no ip on the logical and might like to assign ip on br-ex. Typically, looks like: auto eth2 iface eth2 inet manual up ifconfig $IFACE up up ip link set $IFACE promisc on down ip link set $IFACE promisc off down ifconfig $IFACE down

auto br-ex iface br-ex inet static address netmask

  1. All bridges on all the nodes (br-ex, br-int, br-tun) needs to up and running (must add in interfaces to ensure it is UP on reboot)

  2. If using vmware as virtualized environment, promiscuous setting to Accept on the vSwitch. Or, must be set on hardware switch