Hi, Devs and Community Users
To be more specific, our environment is built with
* 2 Dell R740XD Servers + Dell Compellent Storage w/ iSCSI
* Each server equiped with two Mellanox Connect-4 LX 25GbE network adapters,
and configured with bond mode(active+active) in XenServer
* CloudStack 4.11.2 LTS + XenServer 7.1CU2(LTS) Enterprise
Everything goes fine with shared network, but the weird thing is if we setup 2
isolated networks, try to use 'iperf', 'wget' or 'SCP' to test the network
performance betwen two VMs located in these 2 isolated networks, the traffic
will drop to zero in about 200-300 seconds, even though we were still able to
ping or SSH VM B1 from A1 or verse.
VM A1 ---> VR A(Isloated Network A) ----> VR B(Isolated Network B) ----> VM B1
----------------------------------------------------------------------------------------------------------------------------------------
We have checked the configuration on switches, upgraded Mellanox driver for
XenServer, but no luck.
Meanwhile, we can not re-produce this issue in another environment (XenServer
7.1CU2+ACS 4.11.2+ Intel Gb network).
It seems it might be related to Mellanox adapter, but we have no idea what
part we could possibly miss in this case.
Any advice would be highly appreciated ! Thank you !
在2019年02月22 13时09分, "gu haven"<gumin...@hotmail.com>写道:
hi ，all
I try iperf wget scp connection will break after 200 seconds ，Do need
any optimization in vr ?
environment infomation below:
cloudstack 4.11.2
xenserver 7.1 CU2 Enterprise
NIC :MLNX 25GbE 2P ConnectX4LX
bond mode in xenserver : acitce-active
