Здравствуйте.
В сети 3 свича:
SW1 HP 1820-48G Switch J9981A
SW2 HP 1820-48G Switch J9981A
SW2 HPE OfficeConnect Switch 1820 24G J9980A
Между собой соединены так:
SW1 Trunk(Port 50, 51) -> SW2 Trunk(Port 50, 51)
SW2 Trunk(Port 46, 48) -> SW3 Trunk(Port 24, 25)
На каждом свиче порты 1 и 2 объединены в Trunk. В эти порты подключаю провода от сервера.
На сервере Debian 12 установлено 6 сетевых карт:
Встроеная в материнку: 2.5Gb какая-то
Intel <EXPI9301CT> Сетевая карта 1 Гбит/с (1 x 1 Гбит/с, PCI Express)
Intel <Ethernet Server Adapter I350-T4 (I350T4BLK)> Сетевая карта 1 Гбит/с (4 x 1 Гбит/с, PCI Express)
Сеть перестаёт работать (сервак не виден в сети), если в один свич подключено 2 провода от сервера.
Как это выглядит, все подключения в 1 порт:
В SW1 подключая 1 провод от сервера.
В SW2 подключая 1 провод от сервера.
В SW3 подключая 1 провод от сервера.
Всё работает.
Если подключаю в любой свич (во 2-й порт) ещё один провод от сервера, то сервер больше не в сети.
root@fserver:/etc/network# cat interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# bond-slaves enp6s0 enp1s0f0 enp1s0f1
source /etc/network/interfaces.d/*
# The loopback network interface
auto lo
iface lo inet loopback
# Frontend bond interface
auto bond0
iface bond0 inet static
address 192.168.0.3/24
gateway 192.168.0.1
bond-slaves enp4s0 enp5s0 enp1s0f0 enp1s0f1 enp1s0f2 enp1s0f3
bond-mode 6
bond-miimon 50
bond-downdelay 200
bond-updelay 500
dns-nameservers 192.168.0.1
mtu 9000
root@fserver:/etc/network# ifconfig
bond0: flags=5187<UP,BROADCAST,RUNNING,MASTER,MULTICAST> mtu 9000
inet 192.168.0.3 netmask 255.255.255.0 broadcast 192.168.0.255
ether 04:7c:16:b7:d4:f1 txqueuelen 1000 (Ethernet)
RX packets 12117215 bytes 26896418862 (25.0 GiB)
RX errors 0 dropped 406 overruns 0 frame 0
TX packets 14402119 bytes 90865712754 (84.6 GiB)
TX errors 0 dropped 2 overruns 0 carrier 0 collisions 0
enp1s0f0: flags=6147<UP,BROADCAST,SLAVE,MULTICAST> mtu 9000
ether 00:e0:ed:43:47:18 txqueuelen 1000 (Ethernet)
RX packets 543 bytes 262560 (256.4 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 132 bytes 21722 (21.2 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device memory 0x80900000-8091ffff
enp1s0f1: flags=6211<UP,BROADCAST,RUNNING,SLAVE,MULTICAST> mtu 9000
ether 00:e0:ed:43:47:1b txqueuelen 1000 (Ethernet)
RX packets 1921728 bytes 2020118627 (1.8 GiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 8386752 bytes 54815544928 (51.0 GiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device memory 0x80920000-8093ffff
enp1s0f2: flags=6147<UP,BROADCAST,SLAVE,MULTICAST> mtu 9000
ether 00:e0:ed:43:47:1a txqueuelen 1000 (Ethernet)
RX packets 4979457 bytes 2812109424 (2.6 GiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1815851 bytes 11126428569 (10.3 GiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device memory 0x80940000-8095ffff
enp1s0f3: flags=6211<UP,BROADCAST,RUNNING,SLAVE,MULTICAST> mtu 9000
ether 04:7c:16:b7:d4:f1 txqueuelen 1000 (Ethernet)
RX packets 3087320 bytes 12120738963 (11.2 GiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1728184 bytes 10004123808 (9.3 GiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device memory 0x80960000-8097ffff
enp4s0: flags=6211<UP,BROADCAST,RUNNING,SLAVE,MULTICAST> mtu 9000
ether 00:e0:ed:43:47:19 txqueuelen 1000 (Ethernet)
RX packets 2127514 bytes 12605476263 (11.7 GiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 2464813 bytes 14865868728 (13.8 GiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device memory 0x82000000-820fffff
enp5s0: flags=6147<UP,BROADCAST,SLAVE,MULTICAST> mtu 9000
ether 68:05:ca:aa:9b:7b txqueuelen 1000 (Ethernet)
RX packets 653 bytes 47331 (46.2 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 6387 bytes 53724999 (51.2 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 17 memory 0x823c0000-823e0000
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
loop txqueuelen 1000 (Local Loopback)
RX packets 16630 bytes 4049322 (3.8 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 16630 bytes 4049322 (3.8 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
root@fserver:/etc/network#
