Understanding the Features Supported on Modified and Unmodified Drivers
Table 1 lists the features that are supported on modified and unmodified drivers.
Feature |
IXGBE Driver |
i40e Driver |
||||||
|---|---|---|---|---|---|---|---|---|
vlan-offload=on |
vlan-offload=off |
vlan-offload=on |
vlan-offload=off |
|||||
trust=on |
trust=off |
trust=on |
trust=off |
trust=on |
trust=off |
trust=on |
trust=off |
|
Untagged (IPv4 or IPv6) |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Single tag (IPv4 or IPv6) |
Yes |
Yes |
No |
No |
Yes |
Yes |
Yes |
Yes |
Q-in-Q or double tag |
Yes |
Yes |
No |
No |
Yes |
Yes |
Yes |
Yes |
MTU (64 - 9000) |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
MPLS |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
BGP |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
OSPF version 2 |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
OSPF version 3 |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
AE or LACP |
Yes |
No |
Yes |
No |
Yes |
Yes |
Yes |
Yes |
LLDP |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
STP |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
BFD or Micro-BFD |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
CFM |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
LFM |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
ISIS |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
VRRP |
No |
No |
No |
No |
Yes |
Yes |
Yes |
Yes |
Multicast (PIM or IGMP or IGMP traffic) |
Yes |
No |
Yes |
No |
Yes |
No |
Yes |
No |
Layer 2 bridging |
No |
No |
No |
No |
Yes |
No |
Yes |
No |
Multiple VFs per PF with VLAN to VF mapping |
Yes |
Yes |
No |
No |
Yes |
Yes |
No |
No |
By default, the ethtool priv-flag vf-true-promisc-support option is set to false. It means that the promiscuous mode for the
virtual function (VF) 'will be set to limited mode.
To set the promiscuous mode for the VF to true promiscuous and allow the VF to see all ingress traffic, use the following command:
#ethtool set-priv-flags vf-true-promisc-support
on
Support for modified drivers for i40e is not available starting in Junos OS Release 19.1 and later releases.
The use_native_drivers option does not support
Layer 2 promiscuous mode and other such features.