Shared networks are *only* available in advanced zones. The UI is slightly confusing, though. You cannot create shared networks under the Network tab, rather you need to create them in Infra > Zones (select the zone) > Physical Network (select it) > Guest > Network > click Add guest network.
A shared network can be shared by multiple accounts, but the virtual router for a shared network does not do any routing; you need to set up your own router for the VLAN. Best regards, Kirk On 07/15/2013 08:55 PM, Indra Pramana wrote: > Hi Kirk, > > Good day to you, and thank you for your e-mail. > > Can I used shared VLAN for guest networks in an advanced zone network > configuration? I tried to create a new guest network via the Cloudstack > GUI under Network > Guest networks > Add guest network but I can't add a > shared guest network. Under the "Network Offering" field, only > "DefaultIsolatedNetworkOfferingWithSourceNatService" is available to be > used, despite having a lot of other types of network offerings under > Service Offerings > Network Offerings. > > Or do I need to switch to basic zone network? I really don't want to > lose the features which are only available in advanced zone network, > such as virtual router and firewalls, etc. > > Looking forward to your reply, thank you. > > Cheers. > > > > On Tue, Jul 16, 2013 at 11:37 AM, Kirk Kosinski <kirkkosin...@gmail.com > <mailto:kirkkosin...@gmail.com>> wrote: > > Hi, having isolated networks share VLANs would defeat the purpose of an > isolated network. If the per zone VLAN count is a major concern, > consider using shared networks instead. If you definitely want to use > isolated networks, you can add additional zones since guest networks > don't go across zones. > > Be careful when planning VLAN capacity since your switch or even > hypervisors may not be able to handle anywhere close to 4096 VLANs. > Some switches can only do 10% of that, and it's even less for some > hypervisors (e.g. old XenServer versions, and even the latest "only" > supports 800 VLANs). Definitely check with the vendor or docs to find > the real versus theoretical maximum. > > Best regards, > Kirk > > On 07/15/2013 08:07 PM, Indra Pramana wrote: > > Dear all, > > > > It seems that in CloudStack's advanced network zone configuration, > we need > > to prepare one isolated network VLAN for each guest network for > customers. > > My concern is that this will severely limit the number of > customers we can > > have within the zone, since we have a limitation of the number of > VLANs we > > can create on the switch level. My switch can only support up to 4,096 > > VLANs maximum. > > > > Is there a way for us to configure shared VLAN for the users' guest > > network? Or is it only available on basic network zone configuration? > > > > Looking forward to your reply, thank you. > > > > Cheers. > > > >
