Ether Channel, Bridge Group, Virtual Tunnel or VNI - I'm so confused!

[BrianChernish]

We have a Cisco Firepower 1120 (ver 7.2) managed by FMC (ver 7.2.5). Our ISP is currently delivering 500 MB of DIA to us over Ethernet 1/1, which we have designated "Outside".

We are upgrading to 2 GB of bandwidth and since the 1120 only has 1 gig ports I need to somehow combine multiple ports so I can realize the 2 GB of internet bandwidth.

This is where I get lost. Which of the interface modes, listed above (if any) will I need to configure to achieve this outcome? Can any one direct me to a step by step configuration guide for the required mode?

Thank you in advance.

Brian Chernish

[MHM Cisco World]

I think none of above help you

You need Port channel and since frp have only one gige interface you can not do that.

To be sure what is exactly your firepower platform?

MHM

[BrianChernish]

This is a FirePower 1120 and as far as I can tell it has 12 Gig capable interfaces. The reading I have done it seems like they interchange "Port Channel" and "EtherChannel" .

"When you bind multiple physical ports together an interface which is created is port-channel which is actually termed as etherchannel."

So does this mean I can choose to configure an Etherchannel and it will it aggregate multiple physical interfaces into one logical interface to provide higher bandwidth?

Brian

[MHM Cisco World]

Yes you are correct' cisco some time called it etherchannel and some time port channel 

https://www.cisco.com/c/en/us/support/docs/security/firepower-ngfw/215351-configure-verify-and-troubleshoot-port.html

And Yes if ypu use PO ypu will get high BW.

MHM

[BrianChernish]

I am hitting the wall here. The way I have this configured now, I can get 1750 - 1850 MB upload (clearly the LACP is working) BUT I can only get 950 GB download. If I remove the "globally added load-balance" command, my upload also drops to less than 1 GB. Cisco TAC has looked at the configs and says they are right but they cannot explain the discrepancy between upload and download.  I have attached a PDF (the topology I am working with) and a Word document showing various configurations as well as the output of some related "show" commands.

Do we have an LACP masters out there who can chime in?

Thanks in advance.

Brian