Thank you all for all the feedbacks.
I'm told once again that the WAN i have is symmetrical at the point of entry to home, i.e. 1 GbE up and 1 GbE down.
So, on that, i will continue my investigation on what makes sens to take that 1 WAN connection, add a router, and a switch for single flat LAN in home, to distribute to 8 LAN ports from the wiring closet.
Seems like at minimum i need 9 ports switch unit to use with any EdgeRouter device, i.e.
1 WAN ---- Edge Router ---- 9 ports switch
And possibly more switch ports if i'm going to have LACP between the swith and EdgeRouter. And i'm assuming the switch needs to also support LACP.
My wiring closet On-Q panel is not that big, dimensions are, 3.7" (D) x 20.1" (H) x 14.3 (W), and i will also need to put in there the ISP's device, which is around 9" x 2" x 6").
There is WAN service i can go with that is around 940 Mbps download and 35 Mbps upload, which is considerably cheaper than 1 GbE up/1 GbE down.
For the 940 Mbps down/35 Mbps up, would ER-X-SFP add to it the 5 ports switch be sufficient? That is. in the wiring closet's panel,
WAN ---- ER-X-SFP (SFP port) ---- eth0 to eth3 internal switch ------------ gives 4 LAN ports to rest of house from panel,
---- eth4 to GbE port on separate LAN switch, to give remaining 4 LAN ports from panel,
Without going to bonding (bonding will need larger switch to add to the ER), would you recommend ER-X-SFP for a WAN service of 940 Mbps down/35 Mbps up ? Seems like this WAN service would no achieve more than 1 GbE up and down.
Would eth4 to GbE on switch become the bottleneck? Maybe i'm just being paranoid, much to do with nothing.
(i had previously though about whether 10 GbE link between ER and switch would make sens)
If 940 Mbps down/35 Mbps up were to be used, how would you fill the blank between that WAN connection and need to provide 8 GbE flat/shared LAN to rest of home from panel? At the moment, not looking to add VLAN's to my home networking.
WAN 940 Mbps/35 Mbps ---- ER ????? / Switch ???? ---- 8 LAN ports in the panel to distribute to rest of house
And I do not need AP and PoE.
Thanks much.