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My Cluster can't use the newly added VLAN

  • 26 March 2021
  • 7 replies
  • 63 views

Badge +2

Hi

I have 4 Nodes cluster with the detailed network below

VLAN1000 : IPMI Usage (192.168.255.x/24)

VLAN20 : GuestVM & Internal Cluster Network (192.168.2.x/24)

I was using eth3 and eth4 in bond br0-up in bridge br0 (vs0)

 

And then i’m adding a new vlan (VLAN30 : 192.168.3.x/24) for separating GuestVM network from Internal Cluster

I am using eth0 and eth1 in another bond (bond br1-up in bridge br1) connected to my switchport mode access VLAN30. The problem is, when i created VM using that network (vs1), my guest vm cant ping anywhere even the gateway of its subnet. But when i test my laptop that connected to the switchport mode access VLAN30, my laptop can ping the Gateway.

Here i give the detail of my topology and uplinks configuration

Topology
Uplinks of each hosts
vs1 configuration

 

Perhaps someone can enlight me maybe i missed something here when i’m trying to configure this?

 

Thank you.

icon

Best answer by UPX 28 March 2021, 05:57

Hi KarangDika,

just to be sure, which command did you use to create the new bridge?

this

hostssh "ovs-vsctl add-br br1"

or this

manage_ovs --bridge_name br1 create_single_bridge

 

if you used the first way remove the bridge and try with the second one

Of course do a double check about ports and topology too

I created from PRISM by adding new vs. And after i created from there, i checked using 

manage_ovs show_uplinks

and it shows up my bridge is already created like i did via PRISM.

As i can see you are using “switchport mode access” for VLAN30 so why did you set the vlan tag 30 in the configuration? It should be native and you should use 0 instead of 30 i guess

Let me know

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7 replies

Userlevel 2
Badge +3

Hello,

Sorry to hear about you difficulties.

If you PuTTy to the HV/CVM can you ping from there?

Are the vLan settings verified on the HV and CVM?

Are the vLan setting verified on the switches?

Good luck...

Badge +2

Hello,

Sorry to hear about you difficulties.

If you PuTTy to the HV/CVM can you ping from there?

Are the vLan settings verified on the HV and CVM?

Are the vLan setting verified on the switches?

Good luck...

Hi,

I did test ping from CVM to my Guest VM with new VLAN, it didnt work.

But when i try to direct connect my laptop to my switch with new VLAN, and ping the CVM, it worked.

Userlevel 2
Badge +3

Hi KarangDika,

just to be sure, which command did you use to create the new bridge?

this

hostssh "ovs-vsctl add-br br1"

or this

manage_ovs --bridge_name br1 create_single_bridge

 

if you used the first way remove the bridge and try with the second one

Of course do a double check about ports and topology too

Badge +2

Hi KarangDika,

just to be sure, which command did you use to create the new bridge?

this

hostssh "ovs-vsctl add-br br1"

or this

manage_ovs --bridge_name br1 create_single_bridge

 

if you used the first way remove the bridge and try with the second one

Of course do a double check about ports and topology too

I created from PRISM by adding new vs. And after i created from there, i checked using 

manage_ovs show_uplinks

and it shows up my bridge is already created like i did via PRISM.

Userlevel 2
Badge +3

Hi KarangDika,

just to be sure, which command did you use to create the new bridge?

this

hostssh "ovs-vsctl add-br br1"

or this

manage_ovs --bridge_name br1 create_single_bridge

 

if you used the first way remove the bridge and try with the second one

Of course do a double check about ports and topology too

I created from PRISM by adding new vs. And after i created from there, i checked using 

manage_ovs show_uplinks

and it shows up my bridge is already created like i did via PRISM.

As i can see you are using “switchport mode access” for VLAN30 so why did you set the vlan tag 30 in the configuration? It should be native and you should use 0 instead of 30 i guess

Let me know

Badge +2

Hi KarangDika,

just to be sure, which command did you use to create the new bridge?

this

hostssh "ovs-vsctl add-br br1"

or this

manage_ovs --bridge_name br1 create_single_bridge

 

if you used the first way remove the bridge and try with the second one

Of course do a double check about ports and topology too

I created from PRISM by adding new vs. And after i created from there, i checked using 

manage_ovs show_uplinks

and it shows up my bridge is already created like i did via PRISM.

As i can see you are using “switchport mode access” for VLAN30 so why did you set the vlan tag 30 in the configuration? It should be native and you should use 0 instead of 30 i guess

Let me know

Hi @UPX

I just realized i did give vlan tag 30 in configuration for ovs. Thank you for fixing my mistake.

I just fixed it now and it can either the gateway or other guest vms.


Thank you. Regards.

VLAN Tag changed to native

 

Guest VM can ping to gateway now

 

Userlevel 2
Badge +3

Hi KarangDika,

just to be sure, which command did you use to create the new bridge?

this

hostssh "ovs-vsctl add-br br1"

or this

manage_ovs --bridge_name br1 create_single_bridge

 

if you used the first way remove the bridge and try with the second one

Of course do a double check about ports and topology too

I created from PRISM by adding new vs. And after i created from there, i checked using 

manage_ovs show_uplinks

and it shows up my bridge is already created like i did via PRISM.

As i can see you are using “switchport mode access” for VLAN30 so why did you set the vlan tag 30 in the configuration? It should be native and you should use 0 instead of 30 i guess

Let me know

Hi @UPX

I just realized i did give vlan tag 30 in configuration for ovs. Thank you for fixing my mistake.

I just fixed it now and it can either the gateway or other guest vms.


Thank you. Regards.

VLAN Tag changed to native

 

Guest VM can ping to gateway now

 

 

Happy to hear that!

Stay safe and enjoy your cluster!