LACP on HP2530-48G

[WojtekZ]

Hi,

I would ask if HP2530 support LACP 802.3ad based on MAC (layer2) or also on MAC+IP (layer3)?

[Ivan_B]

Hi @WojtekZ !

https://support.hpe.com/hpesc/public/docDisplay?docLocale=en_US&docId=a00110673en_us , Page 98:

"The actual distribution of the traffic through a trunk depends on a calculation using bits from the SA/DA. When an IP address is available, the calculation includes the last five bits of the IP source address and IP destinationaddress; otherwise, the MAC addresses are used."

So it's either IP-src-dst hash for IPv4 traffic or MAC-src-dst hash for other traffic types. It works automatically and can't be adjusted.

Hope this helps!

[Emil_G]

Hello, 

The CLI of the switch actually allows to configure different load balancing methods. L3 based is the default, L2 and L4 are possible. (tested on version 16.08.x)

HP-2530-48G# sh trunks

Load Balancing Method: L3-based (default)

Port | Name Type | Group Type
------ + -------------------------------- ---------- + ----- --------

HP-2530-48G# conf
HP-2530-48G(config)# trunk-load-balance ?
L2-based Load balance based on Layer 2 information in packets.
L3-based Load balance based on IP Layer 3 information in packets.
L4-based Load balance based on Layer 4 information in packets.

It is a global setting which is applied to all trunks, either LACP or static.