Alex, Only the private switch needs to support 802.1q, and you configure the name of the tags when you run nova-manage network create, by adding a fourth argument, usually a number that is your vlan tag. For each network you create in one command, the number you give it is iterated by one, so if you do:
nova-manage network create 10.0.1.0/24 4 64 100 You'll end up with 4 database entries: 10.0.1.0 - 10.0.1.63 vlan: 100 10.0.1.64 - 10.0.1.127 vlan: 101 10.0.1.128 - 10.0.1.191 vlan: 102 10.0.1.192 - 10.0.1.254 vlan: 103 You can see them in the networks table of the nova database. (It's the 'vlan' column.) They need to be unique, so if you have two networks with a vlan of 100 (because you ran nova-network twice without explicitly stating the vlan start), that's probably not going to work. As I understand it, the vms are passed the vlan tag when they startup, and the network node knows about each customer's network, so it knows what to pay attention to tag-wise. On Mon, Jul 11, 2011 at 2:36 AM, tianyi wang <[email protected]> wrote: > Hi all: > > When use multi-node installation with vlan mode, the vlan configuration > is in switch or in nova control node? And what's the vlan configuration > process? > > I read this article : http://dodeeric.louvrex.net/?p=225 > > ================begin==================== > In the VLAN network mode, each project is given a specific VLAN/subnet. We > will configure three VLANs/subnets (feel free to create much more): > *- VLAN: 1 — Subnet: 10.0.1.0/24 — Bridge name: br_vlan1:* > > # nova-manage network create 10.0.1.0/24 1 256 > > *- VLAN: 2 — Subnet: 10.0.2.0/24 — Bridge name: br_vlan2:* > > # nova-manage network create 10.0.2.0/24 1 256 > > *- VLAN: 3 — Subnet: 10.0.3.0/24 — Bridge name: br_vlan3:* > > # nova-manage network create 10.0.3.0/24 1 256 > > =================end=================== > > It's seem like configure vlan in nova control node? > > If there are two switch: one is for public and another is for private, > both public and private switch need support vlan 802.1q? Or just private > switch is need support vlan 802.1q? > > thanks > > alex > > > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > Post to : [email protected] > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp > > -- Jeff Kramer [email protected] http://www.jeffkramer.org/
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