Changes between Version 15 and Version 16 of Tutorials/Wireless/MassiveMIMO

Timestamp:

Jul 8, 2022, 7:19:12 AM (3 years ago)

Author:

zhenzhou77

Comment:

—

Tutorials/Wireless/MassiveMIMO

@@ -63 +63 @@
 ==== Find and prepare USRPs and the Sounder software ====
 
-* The IP addresses for Ethernet Port 1(10G) on {{{sdr2-s1-lg1}}} and {{{sdr2-md1}}} were hard-coded to {{{10.118.2.2}}} and {{{10.118.3.2}}} respectively. To access them from {{{srv2-lg1}}}, configure the network interface {{{eno2}}} as follows:
+* The IP addresses for Ethernet Port 1(10G) on {{{node23-1}}} to {{{node23-8}}} were hard-coded to {{{10.10.23.1}}} to {{{10.10.23.8}}} respectively. To access them from the server {{{node21-1}}}, no configure of the network interface is needed, however, for better performance, we suggest the following operations:
 {{{#!shell
-root@srv2-lg1:~# ifconfig eno2 10.118.1.2 netmask 255.255.0.0 mtu 9000 up
-root@srv2-lg1:~# sudo sysctl -w net.core.wmem_max=24862979
+root@node21-1:~# ifconfig CTRL mtu 9000 up
+root@node21-1:~# sudo sysctl -w net.core.wmem_max=24862979
 net.core.wmem_max = 24862979
-root@srv2-lg1:~# sudo sysctl -w net.core.rmem_max=24862979
+root@node21-1:~# sudo sysctl -w net.core.rmem_max=24862979
 net.core.rmem_max = 24862979
 root@srv2-lg1:~# ifconfig 
-eno2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 9000
-        inet 10.118.1.2  netmask 255.255.0.0  broadcast 10.118.255.255
-        inet6 fe80::9a03:9bff:fe61:9609  prefixlen 64  scopeid 0x20<link>
-        ether 98:03:9b:61:96:09  txqueuelen 1000  (Ethernet)
-        RX packets 4053772  bytes 17770502341 (17.7 GB)
-        RX errors 0  dropped 0  overruns 0  frame 0
-        TX packets 1727950  bytes 2972166223 (2.9 GB)
+root@node21-1:~# ifconfig CTRL
+CTRL: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 9000
+        inet 10.10.21.1  netmask 255.255.0.0  broadcast 10.10.255.255
+        inet6 fe80::9a03:9bff:fe3b:81e3  prefixlen 64  scopeid 0x20<link>
+        ether 98:03:9b:3b:81:e3  txqueuelen 1000  (Ethernet)
+        RX packets 28985875  bytes 107820952173 (107.8 GB)
+        RX errors 121  dropped 0  overruns 0  frame 121
+        TX packets 12711747  bytes 14132140459 (14.1 GB)
         TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
+}}}
 
-}}}
+* Similarly in {{{node23-8}}}, no further configuration of the network interface is needed.
+
 
 * Run {{{uhd_find_device}}} to make sure that the USRP-2974s can be reached: