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Nexus 1000V connected to multiple networks

hello,

our VMware Server are connected to multiple networks. To each network we use port-channels for load-balancing and availability and we use 802.1q links to each customer/network. Also sometimes different customers use same VLAN-ID`s and we could not avoid this.

With VMware vNDS we have no problems with this requierment, because we can create seperate vNetwork Distributed Switches to each network/customer.

But Nexus1000V knows only one Switch per Host, so we can not seperate identical VLAN-ID´s from different customers.

I read some documents about Pinning, but this Feature is only for load-balancing with port-channels and not for selection of Uplinks.

Does anybody knows, if Cisco will implement switching instances in Nexus 1000V or Q-in-Q ( double tagging ) ??

Both implementations would resolve our problem.

thanks,

Thilo

6 REPLIES
Cisco Employee

Re: Nexus 1000V connected to multiple networks

This has also come up a few times. We are working on a solution to allow you to have the same VLAN but different paths. It should be possible when we release Virtual Security Gateway to provide a solution but as far as a native solution with just Nexus 1000V we are working on it.

louis

New Member

Nexus 1000V connected to multiple networks

Hi.

Is there a solution for this now?

Nexus 1000V connected to multiple networks

I believe the solution is called Network Segmentaion along with VXLAN, vShield Manager and vCloud Director. Maybe an implementation like vDS where you could provide the same VLAN-ID on different physical interfaces is just to easy. 

New Member

Nexus 1000V connected to multiple networks

Sounds like a complicated solution for an easy problem.

Sadly, I will have to stick with VDS for now.

Are there any plans to support multiple VEM per host in the future?

Thanks!

Nexus 1000V connected to multiple networks

Much more easier and standardised could be a solution with Q-in-Q. With a support of multiple S-VLAN´s per interface it should be possible to provide the services to multiple customers also via one interface. Then a customer aggregation switch could push and pop the outer vlan tag.

Regarding your question about multiple VEM, until now I have never heard about it. And maybe there is a disadvantage with the scaling limit of 64 VEM per VSM.

Any ideas why Cisco doesn´t provide Q-in-Q on N1K?

Thanks,

Thilo

New Member

Nexus 1000V connected to multiple networks

Is it possible to assign a different vxlan for each network & still use VLANs inside the vxlan?

how would I connect the non-vxlan supported physical network in layer 2?

Can I make an ethernet uplink port-group part of a vxlan & still use it as a vlan trunk?

Thanks!

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