Create Bond for management
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@OskarNTT at that moment XO will lost connect to server and can't done creation.
Can you change mng to another link for that operation?Not sure if it any another workaround here.
maybe that possible at xen settings screen or console.
try to create bond withxsconsole -
@Tristis-Oris said in Create Bond for management:
@OskarNTT at that moment XO will lost connect to server and can't done creation.
Can you change mng to another link for that operation?Not possible this requires from me changing in physicall inftstrature
eth0 and eth1 going to managment switch
eth2 and eth3 going to main lan
eth4 and eth5 going to backup vlansand i create bond on lan and backup but cant on managment
edit:
Any tips, step by step how can i set this? -
@OskarNTT no bond creation at
xsconsole, so probably only way it's cli.look for syntax here https://support.citrix.com/article/CTX135690/lacp-bonding-in-xenserver-configuration-and-troubleshooting
But i have no idea what will happens. -
When creating a bond with XCP-NG center the mgmt interface is moved on top of bond0 and is the "untagged" vlan. So in cisco that would be the "native vlan".
There is a short interruption and then connectivity is back again if you've configured the switch in LACP-mode (if choosing lacp when creating the bond).
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@nikade said in Create Bond for management:
When creating a bond with XCP-NG center the mgmt interface is moved on top of bond0 and is the "untagged" vlan. So in cisco that would be the "native vlan".
There is a short interruption and then connectivity is back again if you've configured the switch in LACP-mode (if choosing lacp when creating the bond).
What if i have vlan and this is required?
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@OskarNTT bond never has a IP on it. You create your bond0 then create your VLANs on top. Make sure that LACP is enabled on the switch and configured as a Trunk not Access. Create VLAN first then move both Interfaces to Bond job done.
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@jbamford Xo cant create BOND without interface so i cant create bond and vlan to move interface
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@OskarNTT I’ve done it in XO.
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@OskarNTT you select the both which will automatically assign it to management just like in XCP-ng Center. I’ve done it like this on 3 nodes in a cluster.
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@jbamford said in Create Bond for management:
@OskarNTT you select the both which will automatically assign it to management just like in XCP-ng Center. I’ve done it like this on 3 nodes in a cluster.
Exactly, when selecting both eth0 and eth1 the mgmt interface will be moved ontop of the bond0 as an untagged vlan.
In your switch, just configure the native vlanid of your mgmt network to that lacp interface and you're good to go. -
@nikade correct. But I strongly recommend putting Management in a management VLAN. Do away with Native VLANs. Bond0 should never have a IP on it. Build Bond0 then VLANs on top I.e MGMT VLAN, Servers that are going to be exposed in an isolated VLAN. It is good practice to not use Native VLAN 1 and working in a Data Center like myself VLAN everything.
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@jbamford said in Create Bond for management:
@nikade correct. But I strongly recommend putting Management in a management VLAN. Do away with Native VLANs. Bond0 should never have a IP on it. Build Bond0 then VLANs on top I.e MGMT VLAN, Servers that are going to be exposed in an isolated VLAN. It is good practice to not use Native VLAN 1 and working in a Data Center like myself VLAN everything.
Im not talking about using VLAN 1, you can change the native vlan-id on the interface to your management vlan.
Also, if you dont have a dedicated nic for management you'll need to put it on the bond0 and that means bond0 having an ip on it, we've done this for about 10 years without any issues so im not really sure why you are against it.For example, our management vlan is vlan-id 99 and our server has 2 NIC's.
We then create a lacp bond on eth0 and eth1 and the mgmt interface is automatically moved from the default eth0 to bond0.
We then go to the switch and we configure the native vlan-id on the lacp interface to vlan-id 99. -
@nikade that is wrong. Bond0 never has a IP. It is one of the weaknesses with TCP-IP and 802.3ad. When I did my CCNA/CCNP it was well documented.
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@jbamford said in Create Bond for management:
@nikade that is wrong. Bond0 never has a IP. It is one of the weaknesses with TCP-IP and 802.3ad. When I did my CCNA/CCNP it was well documented.
I don't think you are correct, this is how it looks on all 18 of our XCP-NG's with management on top of the lacp/bonded interfaces:
But anyway, end of discussion, you've been presented with a solution that works, if you don't want to use it that's your decision.
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@nikade no management VLAN looks a mess. Don’t moan when you get compromised and you wonder why data breaches happen
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Have the same problem.
We use LACP fallback in the switch so if the ports in the LACP not receive LACP one port goes into standard mode/non LACP. That's what is active now.Trying to create a bond with the eth0 (currently used to manage) and eth1 but can't select bond mode.
Have also in the switch enabled native vlan that is the manage vlan.
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Weird
@MathieuRA any reason for bond mode to be empty? -
What happends if you just try choosing eth0 and paste the output view and then do the same with eth1?
Atleast we can narrow it down to which interface it is causing the inoperability. -
@nikade
It is solved.
Reinstalled the nodes since the setup is not in production yet.
Bond worked fine and the switch ports went from LACP fall back into LACP active/active.
