[j-nsp] VMX 17.1 experiencing high latency/packet loss with SRIOV

[stephane.litkowski at orange.com]

Hi,

This is one of my feeling also but I do not have the confirmation yet (yes the release notes points to Niantic only but the orchestration scripts detects and checks/accepts the i40e driver).
The fact that you faced issues with CSR1000V also points also in this direction.

Thanks for the feedback.

-----Original Message-----
From: juniper-nsp [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of James Bensley
Sent: Wednesday, April 05, 2017 18:00
To: juniper-nsp at puck.nether.net
Subject: Re: [j-nsp] VMX 17.1 experiencing high latency/packet loss with SRIOV

On 5 April 2017 at 15:38,  <stephane.litkowski at orange.com> wrote:
> The NIC is an Intel XL710 running at 10Gbps.

I don't know about vMX for Junos 17, is the i40evf driver supported (for X710 Intel NICs)?

We are having a similar issue with Cisco's CSR1000v on CentOS with KVM and X710 NICs. The i40evf driver isn't support by the CSR1000v at present and we have one-way packet loss (inbound to the VM). We have to wait for IOS-XE/CSR1000v 16.7 coming in Q3 2017to support X710 NICs/the i40evf driver. Are you use its supported for vMX 17?

Having a quick scan of juniper.net says: For single root I/O virtualization (SR-IOV) NIC type, use Intel 82599-based PCI-Express cards (10 Gbps) and Ivy Bridge processors.

https://www.juniper.net/techpubs/en_US/vmx17.1/topics/reference/general/vmx-hw-sw-minimums.html

Cheers,
James.
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