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From: Yuvaraj Ranganathan <>
Subject: [Intel-wired-lan] [E1000-devel] Traffic not passing for VLAN ID >= 32 on the I350 SR-IOV enabled NIC
Date: Thu, 29 Jul 2021 09:37:16 +0000	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

Hi Laurent,

Thanks for your help.

Below is the information of SR-IOV interface, where VF 2 is directly mapped to VM interface.

root at local-node:~# ip link show heth-0-1
5: heth-0-1: <BROADCAST,MULTICAST,ALLMULTI,PROMISC,UP,LOWER_UP> mtu 9192 qdisc mq state UP mode DEFAULT group default qlen 1000
    link/ether 58:00:bb:aa:ee:49 brd ff:ff:ff:ff:ff:ff
    vf 0 MAC aa:81:c7:6f:b4:0a, spoof checking on, link-state auto, trust on
    vf 1 MAC 16:26:97:40:0f:86, spoof checking on, link-state auto, trust on
    vf 2 MAC 58:00:bb:aa:ee:60, spoof checking on, link-state auto, trust on
    vf 3 MAC 22:28:fa:f4:68:1a, spoof checking on, link-state auto, trust on
root at local-node:~#

On configuring the VLAN >=32 on the VM interface and tried sending outgoing traffic, there is no packet captured in tcpdump at SR-IOV(heth-0-1) interface. In case of VLAN <= 31, the outgoing packet captured in tcpdump at heth-0-1 interface.

You help is always appreciated!


From: Laurent Dumont <>
Date: Thursday, 29 July 2021 at 7:41 AM
To: Yuvaraj Ranganathan <>
Cc: e1000-devel at <>, intel-wired-lan at <>, Pushp Saurav <>
Subject: Re: [E1000-devel] Traffic not passing for VLAN ID >= 32 on the I350 SR-IOV enabled NIC
[External Email. Be cautious of content]

Can you show the output of

ip link show $SRIOV_INT_NAME_HERE

Are you seeing any traffic reaching inside the VM if you tcpdump there?

On Tue, Jul 27, 2021 at 10:07 AM Yuvaraj Ranganathan via E1000-devel <e1000-devel at<>> wrote:
Hi Team,

With the SR-IOV enabled on I350 NIC which has 4 VF?s, on configuring VLAN ID from range 1 to 31 on the VM interface, network traffic is fine and no issues. When trying to create an interface with VLAN ID >= 32 on the VM, traffic is not passing to that interface and as per HW specs, VLAN ID?s from 1 to 4096 are supported.

VM?s interface is directly mapped to one of the VF on I350 NIC. I am using IGB PF driver version 5.7.2(latest).

Could somebody please help!

Thanks in advance,

Juniper Business Use Only

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To learn more about Intel Ethernet, visit<;!!NEt6yMaO-gk!XuSTry-yCsDfr50s_cea2F8i2aZsn1EgmahFyYNsHaHk47t9o3oazDYLdf8qBIRweU8$>

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  reply	other threads:[~2021-07-29  9:37 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-27  6:23 [Intel-wired-lan] " Yuvaraj Ranganathan
2021-07-27 15:04 ` [Intel-wired-lan] [E1000-devel] " Fujinaka, Todd
2021-07-27 16:04   ` Fujinaka, Todd
2021-07-29  2:11 ` Laurent Dumont
2021-07-29  9:37   ` Yuvaraj Ranganathan [this message]
2021-07-29 12:34     ` Laurent Dumont

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