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Citrix XenServer & HPE SY480 Compute Module - Nic Team Issues (Server not reachable - unable to add Server to XenCenter & configure NIC teaming).


Mehal Patel

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Hi All

 

Hope you're doing good.

 

I'm new to this and could really do with some help on an issue being seen. Below are the solutions active in this design:

   - Servers - HPE Synergy 480 Compute Module

   - Network Switches - Cisco Catalyst 6880-X-LE

   - HyperVisor - Citrix XenServer 7.1 CU2

I'm trying to add XenServer (PG.....P201.PGDS.......) to the XenCenter in order to then configure NIC Teaming. However, when I try to ping the server, the request times out and cannot reach the Server. On OneView, (which is the GUI Tool used to manage Synergy) I get an error saying that there's an error on the downlink port from the Synergy Virtual Connect, to the Synergy 480 Compute Module. 

Not sure how familiar/experienced you are with HPE Synergy & HPE OneView, but this is the resolution message I get to the error seen:

   Resolution - Verify the switch-assisted load-balancing using 802.1AD/LACP based NIC teaming is configured on the server PG51ONVP12_CZJ92909CV, bay 1.

 

Hoping you can help out here. Thanks. :)

 

Regards,

Mehal 

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5 answers to this question

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Don't know anything about your hardware. But you definitely need to start simple and work forward.

When you are adding the server to XenCenter is it a single nic for the management interface?  If not

I would do that first then work on bonding. Definitely could be some configuration causing the

issue. 

 

--Alan--

 

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I've got a smilar issue with XenServer 7.1 CU2 -> I upgraded a server to the latest pachlevel of 7.1 yesterday and suddenly I've lost network-connection. I also have a bond for the 2 NICs; it all worked normally until the latest patch. To be clear; server was behind on patches; so I believe it was the last 7 updates or so.

 

But whatever I try; an Emergency Network Reset; nothing helps; the result is that I have an unconfigured Management Interface, so the XenServer is not network-accessible. I have a bond that is not connected, the physical interfaces are connected. When using the x-console to reconfigure the network sometimes the 2 physical adapters just disappear from the list, other times I see the physical adapters but when trying to configure a static/dhcp IP on it; it just says Unknown Error.

 

Any help is appreciated.

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1 minute ago, Tobias Kreidl said:

I've run into this before and perhaps a re-install might be your only option. When you did the emergency network reset did you fall back on just a single network management interface (no bond)?

 

Thank you for your quick reply Tobias. With the emergency reset I selected the separate adapter (eth0 or eth1) but didn't make a difference.

 

I'm already preparing a reinstall like you suggested; somehow the Ethernet-interfaces are not showing up at all anymore so seems like the best suggestion.

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