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. >
