high cpu usage when copy files

[pndmest]

i recognize high cpu usage when i copy files between servers
source server is connected to a lan port with another configured vlan 10 on another bridge
the destination server is connected to vlan 1

when i copy files from another lan port on the router which is connected to vlan 1 i dont have the problems

config:
brctl show
bridge name bridge id STP enabled interfaces
br0 8000.f832e47877a0 yes vlan1
eth1
wl0.1
br10 8000.f832e47877a0 yes vlan10

robocfg show
Switch: enabled
Port 0: 100FD enabled stp: none vlan: 2 jumbo: off mac: a0:4f:d4:dd:c3:b9
Port 1: 1000FD enabled stp: none vlan: 10 jumbo: off mac: 00:01:2e:2f:dc:3e
Port 2: 100FD enabled stp: none vlan: 1 jumbo: off mac: 50:4f:94:10:21:b5
Port 3: 1000FD enabled stp: none vlan: 1 jumbo: off mac: bc:5f:f4:5b:05:a6
Port 4: DOWN enabled stp: none vlan: 1 jumbo: off mac: 00:00:00:00:00:00
Port 8: DOWN enabled stp: none vlan: 1 jumbo: off mac: 00:00:00:00:00:00
VLANs: BCM5301x enabled mac_check mac_hash
1: vlan1: 2 3 5 7t
2: vlan2: 0 7
10: vlan10: 1 7t
1045: vlan1045: 0 1 4 7
1046: vlan1046: 2 5
1047: vlan1047: 0t 7 8t
1099: vlan1099: 1t 2t 3 4 5 7t
1100: vlan1100: 0 2 4t 7 8t
1101: vlan1101: 2 3
1102: vlan1102: 1 2t 5t 7t 8t
1103: vlan1103: 1 2 3t 4 7 8t

 

[ColinTaylor]

Yes, that will be the case. All the I/O is going through the router's CPU.

 

[pndmest]

Yes, that will be the case. All the I/O is going through the router's CPU.

any other possible configuration to isolate a computer and not have this behaviour,

 

[ColinTaylor]

any other possible configuration to isolate a computer and not have this behaviour,

Probably not, but it depends on what you mean by "isolate a computer". You are transferring data between two computers on different VLANs so they are obviously not isolated.