My setup is a Windows 10 PC with 10G card (LR-LINK 6880BT) and a Synology DS1618+ NAS with 10G card (Synology E10G18-T1). Both 10G ports are connected directly to avoid buying a 10G switch.
A) How the 10G connection works:
- NAS eth4 (10G) is set to 192.168.178.11
- PC 10G is set to 192.168.178.13
- NAS 10G and PC 10G are connected directly
- >400 MB/s (limited by NAS performance) copying a file from .11 through SMB
B) How it does not work:
- NAS eth4 (10G) is set to 192.168.178.11
- PC 10G is set to 192.168.178.13
- NAS 10G and PC 10G are connected directly
- NAS eth3 (1G) is set to 192.168.178.10
- NAS eth3 is connected to the router (192.168.178.1)
- I create on the NAS a bridge between eth3 (1G) and eth4 (10G) (to connect the PC to the intra- and internet):
brctl addbr br0 brctl stp br0 off ifconfig br0 192.168.178.12 netmask 255.255.255.0 up brctl addif br0 eth3 brctl addif br0 eth4 ifconfig eth3 promisc up ifconfig eth4 promisc up - <115 MB/s copying a file from .12 through SMB
In both cases the PC shows "10,0 Gbit/s" transfer speeds in its adapters status. The NAS, too:
ethtool eth4
Settings for eth4:
Supported ports: [ TP ]
Supported link modes: 100baseT/Full
1000baseT/Full
10000baseT/Full
Supported pause frame use: Symmetric
Supports auto-negotiation: Yes
Advertised link modes: 100baseT/Full
1000baseT/Full
10000baseT/Full
Advertised pause frame use: Symmetric
Advertised auto-negotiation: Yes
Speed: 10000Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 0
Transceiver: external
Auto-negotiation: on
MDI-X: Unknown
Supports Wake-on: g
Wake-on: d
Link detected: yes
Maybe important: I'm not able to set a gateway for the bridge. I tried this:
route add default gw 192.168.178.1 dev br0
But it returns:
SIOCADDRT: Network is unreachable
I do not know why as the IPs are all correctly set up:
ifconfig
br0 Link encap:Ethernet HWaddr 00:00:00:00:00:00
inet addr:192.168.178.12 Bcast:192.168.178.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:553505 errors:0 dropped:0 overruns:0 frame:0
TX packets:3324 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:61656890 (58.8 MiB) TX bytes:2251363 (2.1 MiB)
...
eth3 Link encap:Ethernet HWaddr 00:00:00:00:00:00
inet addr:192.168.178.10 Bcast:192.168.178.255 Mask:255.255.255.0
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
RX packets:3422085 errors:0 dropped:0 overruns:0 frame:0
TX packets:845424 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:4592877231 (4.2 GiB) TX bytes:1126753162 (1.0 GiB)
eth4 Link encap:Ethernet HWaddr 00:00:00:00:00:00
inet addr:192.168.178.11 Bcast:192.168.178.255 Mask:255.255.255.0
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
RX packets:1354792 errors:0 dropped:0 overruns:0 frame:0
TX packets:4370314 errors:1 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1199786642 (1.1 GiB) TX bytes:6062719532 (5.6 GiB)
route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default fritz.box 0.0.0.0 UG 0 0 0 eth1
192.168.178.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
192.168.178.0 0.0.0.0 255.255.255.0 U 0 0 0 eth3
192.168.178.0 0.0.0.0 255.255.255.0 U 0 0 0 eth4
brctl show
bridge name bridge id STP enabled interfaces
br0 8000.000000000000 no eth3
eth4
Maybe interesting, too:
- All clients in the intranet are able to ping .12 after the bridge is setup
- the router does not show up .12. It lists only .10 (not pingable) and .13 (PC).
- br0 and eth3 and the routers .10 client have all the same mac address
