SDN and vlans question
Hi, I have been requested to try to reduce number of vlans that are configured on PHYSICAL switches to minimum (like 4-5 vlans, for mgmt, storage,guest, etc) >From my understanding of CS advanced netwokring, all traffic isolation/separation is done by means of VLANS. So for potentialu 1000 clients - I would need 1000 vlans to isolate traffic between clients VPC/VMs...I don't understand the possiblity to use advanced networking and use only few vlans to have traffic isolation for that 1000 clients. Is there any other solution (that I'm not aware of) that minimizes request for change on physical network equipment and reduces vlan usag to few vlans? I'm reading now about SDN...but still don't have very clear picture... Thanks for any inputs/opinions... Andrija Panić
Re: SDN and vlans question
How abt using PVLANs? -Pradeep On Friday, November 29, 2013 3:42 PM, Andrija Panic wrote: Hi, I have been requested to try to reduce number of vlans that are configured on PHYSICAL switches to minimum (like 4-5 vlans, for mgmt, storage,guest, etc) From my understanding of CS advanced netwokring, all traffic isolation/separation is done by means of VLANS. So for potentialu 1000 clients - I would need 1000 vlans to isolate traffic between clients VPC/VMs...I don't understand the possiblity to use advanced networking and use only few vlans to have traffic isolation for that 1000 clients. Is there any other solution (that I'm not aware of) that minimizes request for change on physical network equipment and reduces vlan usag to few vlans? I'm reading now about SDN...but still don't have very clear picture... Thanks for any inputs/opinions... Andrija Panić
Re: SDN and vlans question
If I'm not mistaken, this is only supported for vmware or in the plan to be supported ? we are using kvm... On 29 November 2013 11:24, Pradeep Cloudstack wrote: > How abt using PVLANs? > > -Pradeep > > > > > > On Friday, November 29, 2013 3:42 PM, Andrija Panic < > andrija.pa...@gmail.com> wrote: > > Hi, > > I have been requested to try to reduce number of vlans that are configured > on PHYSICAL switches to minimum (like 4-5 vlans, for mgmt, storage,guest, > etc) > > From my understanding of CS advanced netwokring, all traffic > isolation/separation is done by means of VLANS. > > So for potentialu 1000 clients - I would need 1000 vlans to isolate > traffic between clients VPC/VMs...I don't understand the possiblity to use > advanced networking and use only few vlans to have traffic isolation for > that 1000 clients. > > Is there any other solution (that I'm not aware of) that minimizes request > for change on physical network equipment and reduces vlan usag to few > vlans? > > I'm reading now about SDN...but still don't have very clear picture... > > Thanks for any inputs/opinions... > > Andrija Panić > -- Andrija Panić -- http://admintweets.com --
Re: SDN and vlans question
On 29.11.2013 10:12, Andrija Panic wrote: Hi, I have been requested to try to reduce number of vlans that are configured on PHYSICAL switches to minimum (like 4-5 vlans, for mgmt, storage,guest, etc) From my understanding of CS advanced netwokring, all traffic isolation/separation is done by means of VLANS. So for potentialu 1000 clients - I would need 1000 vlans to isolate traffic between clients VPC/VMs...I don't understand the possiblity to use advanced networking and use only few vlans to have traffic isolation for that 1000 clients. Is there any other solution (that I'm not aware of) that minimizes request for change on physical network equipment and reduces vlan usag to few vlans? You can either use just one big zone with security groups, so just 1 vlan is used and customers are separated by iptables/ebtables (my favourite) or you can use GRE tunnels (less mature and more overhead afaik), there is also support coming for VXLAN which will become sort of a standard imho. Nicira NVP SDN is another possibility if you can afford it which is tested and works. HTH Lucian -- Sent from the Delta quadrant using Borg technology! Nux! www.nux.ro
