topic ASAv50 Cannot See Interface Tengigabit in Network Security

ASAv50 Cannot See Interface Tengigabit

jewfcb001 — Fri, 03 Apr 2020 03:22:49 GMT

I deploy ASAv50 with ESXI version 6.7 with vmxnet 3 but I cannot found the interface tengigabit .

Please help and suggest me .

Re: ASAv50 Cannot See Interface Tengigabit

Gustavo Medina — Fri, 03 Apr 2020 03:41:58 GMT

Hi,

This is a cosmetic issue and has no impact on the throughput.

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvj98466

Re: ASAv50 Cannot See Interface Tengigabit

jewfcb001 — Fri, 03 Apr 2020 03:50:32 GMT

Hi Gustavo ,
We use asa version asav9-12-3-9 . You mean no impact on the throughput. Can you more explain for me ?

In the configuration see Gigabitethernet but the real throughput can increase more than 1G to 10G

Please suggest me

Re: ASAv50 Cannot See Interface Tengigabit

Gustavo Medina — Fri, 03 Apr 2020 04:02:28 GMT

Correct. ASAv calling VMXnet3 interfaces "gigabit" rather than "ten-gigabit" is cosmetic and has no impact on the throughput of the interface; as long as the vmxnet3 is properly configured of course.
https://www.cisco.com/c/en/us/td/docs/security/asa/asa913/asav/getting-started/asav-913-gsg/asav_intro.html#id_45635

"When using vmxnet3, you need to disable Large Receive Offload (LRO) to avoid poor TCP performance."

If you do have a throughput issue then you should open a TAC case to investigate.