Network link aggregation?

D

Dmitry Shumov2021-11-01 15:05:56

Computer networks

Dmitry Shumov, 2021-11-01 15:05:56

Colleagues, help me figure it out ...
There are 2 gigabit ports, I aggregated them on CISCO and (according to my meager concepts) I expect that at the output I will have a logical interface with 2 gigabit.

Conf on CISCO

!
interface Port-channel9
description srv-hv12-manage
switchport mode trunk
spanning-tree portfast trunk
spanning-tree bpduguard enable

!
interface Port-channel10
description srv-hv12-vm
switchport mode trunk
spanning-tree portfast trunk
spanning-tree bpduguard enable

!
interface GigabitEthernet1/0/9
description srv-hv12-manage
switchport mode trunk
channel-protocol lacp
channel-group 9 mode active
spanning-tree portfast trunk
spanning-tree bpduguard enable

!
interface GigabitEthernet1/0/10
description srv-hv12-vm
switchport mode trunk
channel-protocol lacp
channel-group 10 mode active
spanning-tree portfast trunk
spanning-tree bpduguard enable

!
interface GigabitEthernet2/0/9
description srv-hv12-manage
switchport mode trunk
channel-protocol lacp
channel-group 9 mode active
spanning-tree portfast trunk
spanning-tree bpduguard enable

!
interface GigabitEthernet2/0/10
description srv-hv12-vm
switchport mode trunk
channel-protocol lacp
channel-group 10 mode active
spanning-tree portfast trunk
spanning-tree bpduguard enable

Timing is configured on the server side. I did it both with windows and with network card drivers. But in fact, on the test, it gives gigabit. How so? I set up LACP with server tools, When I set up the driver tools, I set both 802.3ad and LACP - gigabit, even if you crack ....

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1 answer(s)

A

Armenian Radio, 2021-11-01
@dshumov

Everything is correct. Two gigabits between two specific hosts can only be obtained with the Round-Robin policy (when packets in turn fall into one or the other network interface).
Venda and Cisco do not support this - only Linux and Mikrotik.
In other cases, you will have acceleration for access from different hosts (because with the policy of splitting by poppies, which is the default, packets will fall into the interfaces depending on the MAC)