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recha
recha
New Member
January 24, 2018
Question

Forti LACP with several switch Huawei

  • January 24, 2018
  • 1 reply
  • 9223 views

Hello,

 

I have a simple question:

 

Is it possible to connect a LACP interface (of 8 ports) to several different switch?

 

To be more precise, i have 4 switch behind my ha-forti-101E (so 2 ports of LACP interface are connected to 1 switch).

On this 4 switch, i've got 2 of them stacked.

So, at logical level, i have 3 switch.

 

From port 13 to 16, it's connected to the 2 stacked switch => no problem, when i check their status, it's good, the lacp state is established.

But for the other port, it's pending at "negociating".

port 9 & 10 are connected to one switch.

port 11 & 12 are connected to the last one.

 

Can someone already tried this type de configuration please?

Thanks :)

1 reply

emnoc
emnoc
New Member
January 25, 2018

 If they are a  true stack than yes,  this is doable. I would double check if you can do  8 member  bundle on a 101E  tho.

 

Why 8 ports ? Do you think  you need that level of redundancy? Your not going to get  8gig if I had to guess  ;)

 

 

recha
rechaAuthor
New Member
January 26, 2018

Hi Emnoc,

 

No, i know i'm not going to have 8Gb bandwidth ^^

According to this kb, 8 ports in 802.ad interface is possible http://kb.fortinet.com/kb/viewContent.do?externalId=11640

8 is just redanduncy and the landing in a defective switch...

 

So, in my case, it's not possible to have an LACP interface with 8 ports connected to 3 different logical switch, can you confirm...is that it ?

Thanks for your help

ede_pfau
SuperUser
ede_pfau
SuperUser
January 26, 2018

I can confirm that you can run an LACP trunk from a FGT HA pair to a pair of stacked switches running ComOS (HP A5900 series, ex-Huawei). IMHO your design doesn't make too much sense. I've never seen a stack of switches (of 2 switches) fed from separate power feeds die at the same time. That is, HP/H3C/3Com switches, ComOS v5 and v7.

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