How to do routing between VLANs in the cloud?

Question

VMware

There are several hosts on vmware ESXi running 20-30 VMs scattered in 5 VLANs. These hosts are connected to Cisco 3750G switches. Routing is currently handled by Vyatta (router, firewall, ACL and VPN) running as a VM on one of the hosts.

Question - can it be better to configure InterVLAN Routing on switches, and leave routing to the Internet, firewall and VPN on Vyatta?

But in this case, traffic between VMs located on the same host as Vyatta will have to be routed outside, and this will increase the load on the network. Now most of the machines that need access to other VLANs are on the same host as Vyatta and the traffic remains within the internal vSwitch and does not get outside.

Answer 1

Well, you actually answered your own question - leave it as it is. Why are you not satisfied with vSwitch? What will you gain by switching routing to switch? - nothing. Maybe you are silent about some task that needs to be additionally implemented? :)

Answer 2

3750 is a good piece of hardware, ideal for intervlan routing. If you don’t screw up, it will route to the line rate, and with delays less than the software solution on the hypervisor. You can hang ACLs. Worried about increasing traffic volumes? Make a teaming of two or more network cards on the hypervisor and etherchannel on the switch.
Well, after all, you need to start with the exact figures for the amount of traffic between virtual machines of the same host in different VLANs.

Answer 3

If I were you, I would first draw the current map, then the future one, and think about why this is necessary.
And then I already decided how to reconfigure and whether it is necessary at all

Answer 4

It's hard to say something without seeing the topology, but it turns out that if your VM with Vyatta crashes, will all routing die?
Use vSwitch for hosts within the same basin and L3 routing on switches for different
>. L3 in switches is usually very basic
. I have 3560 BGP and PBR spinning, wow basic )