Communicates between host servers and client servers.

[H0TSUN]

Hello,
First of all, I apologize if this is a basic question.

I have connected a host server and a client server using a QSFP+ cable. Each server has an Alveo U50 card installed.
I have programmed the openNIC shell on the host server and completed the Ethtool and lm-sensors tests.

What I am curious about is how to enable communication between the host server and the client-server.
I looked in the manuals, but I couldn't figure out how to do it. Should I connect the switch to the host server like solution(https://www.xilinx.com/content/dam/xilinx/publications/product-briefs/algo-logic-kvs-product-brief.pdf)

I attached some results below.

dmesg

ifconfig

ifconfig ens85
ens85: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 00:0a:35:ec:27:fc  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 5584  bytes 876587 (876.5 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        
        virbr0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        inet 192.168.122.1  netmask 255.255.255.0  broadcast 192.168.122.255
        ether 52:54:00:8e:3d:8d  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

ethtool

sudo ethtool ens85
Settings for ens85:
	Link detected: no

sudo ethtool virbr0
Settings for virbr0:
	Supported ports: [ ]
	Supported link modes:   Not reported
	Supported pause frame use: No
	Supports auto-negotiation: No
	Supported FEC modes: Not reported
	Advertised link modes:  Not reported
	Advertised pause frame use: No
	Advertised auto-negotiation: No
	Advertised FEC modes: Not reported
	Speed: Unknown!
	Duplex: Unknown! (255)
	Port: Other
	PHYAD: 0
	Transceiver: internal
	Auto-negotiation: off
	Link detected: no

Thank you in advance.