I have the following situation:
bce0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=1bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4>
ether 00:14:5e:6d:2d:74
media: Ethernet autoselect (1000baseSX <full-duplex>)
status: active
vlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=3<RXCSUM,TXCSUM>
ether 00:14:5e:b3:2a:38
inet xx.xx.xx.xx netmask 0xffffff00 broadcast xx.xx.xx.255
media: Ethernet autoselect (1000baseSX <full-duplex>)
status: active
vlan: 250 parent interface: bce1
e.g. the network card is directly on a trunked network, and I have the
vlan interface with actual IP address. My question is: since this setup
mixes various network&protocol layers, are the TSO capabilities of the
card used? I guess not and that only RXCSUM & TXCSUM are used (for
IP-level packets).
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