VSAN in nested environment:Network issue

[kapiljha]

Hi All,

I am building a test VSAN env in nested environment, and I am stuck with one error which seems to be not new with VSAN implementation.

I checked various blogs and website and solution seems to be

• Option 1 – Disable IGMP Snooping. Now this will allow all multicast traffic through, but if the only traffic is VSAN, then this should be a negligible amount of traffic and should be safe to use.
• Option 2 - Configure IGMP snooping querier. If there is other multicast traffic and you are concerned that disabling IGMP snooping might open the network up to a flood of multicast traffic, then this is a preferred option. Cisco detail how to do this here.

But these virtual ESX host in nested environments are connected via vSwitch and there is no physical NIC conntect

Any help is much appreciated.

Thanks

Kapil

[depping]

So you created VSAN VMkernel interfaces all in the same subnet? and you can ping these from host to host?

[admin]

Hi,

Have you enabled the Virtual SAN traffic service on the vmk interface?

[kapiljha]

Hi, you are right, there is some network issue,

~ # esxcli network ip route ipv4 list

Network      Netmask        Gateway      Interface  Source

-----------  -------------  -----------  ---------  ------

default      0.0.0.0        192.168.0.4  vmk0       MANUAL

192.168.0.0  255.255.255.0  0.0.0.0      vmk1       MANUAL

I just have 1 vswitch ie vSwitch0, and ESXhost have IP

192.168.0.1/2/3   vcenter server has IP 192.168.0.4 and putting it as gateya for both port groups.

I created another port group VSAN with vKernel adapter vmk1 having IPs

192.168.0.151/152/153

they all in same subnet /24, I tried to split the subnet but still it did not work.

so basically 192.168.0.1/2/3 and 192.168.0.151/152/153 are not pingable

Can you please point what is missing here.

Thanks

Kapil

[depping · Accepted solution]

If you are running nested, did you configure promiscuous mode and forged transmits?

http://www.virtuallyghetto.com/2013/11/why-is-promiscuous-mode-forged.html

[kapiljha]

Bingo,

You are awesome man!!

Thanks

Kapil