topic Re: Xor bond rx load balancing in General Topics

Xor bond rx load balancing

Amir_Arama — Thu, 17 Jun 2021 08:41:20 GMT

Hi,

i configured xor bond on my checkpoint cluster, now on netstat -ni i can see that ex packets are not balanced equally between the interfaces. the bond0 is shared among eth4 and eth5. please ignore rx-drp and rx-ovr because it seems it was happening at the trials to set the bond as lacp, and the number aren't growing for at least 30 hours now.

netstat -ni

Iface MTU Met RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP TX-OVR Flg

bond0 1500 0 308398076 0 7639 7639 276182384 0 0 0 BMmRU
eth4 1500 0 1305664 0 3902 3902 132707486 0 0 0 BMsRU
eth5 1500 0 307092420 0 3737 3737 143474902 0 0 0 BMsRU

what can be the reason the rx not balanced?

in the sw side i configured nothing.

thx

Re: Xor bond rx load balancing

Vladimir — Thu, 17 Jun 2021 10:58:40 GMT

What is on the other side of that bond how is the bonding configured on that device? post the config snip in here please.

Re: Xor bond rx load balancing

Amir_Arama — Thu, 17 Jun 2021 11:00:20 GMT

Aruba switch

Nothing configured on the switch

Re: Xor bond rx load balancing

Vladimir — Thu, 17 Jun 2021 11:18:42 GMT

Check the LB algorithm for XOR settings in Gaia (sorry, do not have access to it myself at the moment), what is it set to?

L2/L3, L3/L4? depending on circumstances, individual sessions will stick to the same port and you will not see equal balancing unless you simulate equal traffic from/to different sources and destinations.

Re: Xor bond rx load balancing

Amir_Arama — Thu, 17 Jun 2021 11:40:20 GMT

it's configured on layer 3+4 (the other option is layer2)

Re: Xor bond rx load balancing

Vladimir — Thu, 17 Jun 2021 11:45:04 GMT

If you want to equally distribute traffic, L2 only may do that, but at the cost of packet delivery not being guaranteed to be "in order". This may have performance impact downstream.

BTW, are there LAG configuration requirements for something like this on the Aruba side, or does it do it automatically?

Re: Xor bond rx load balancing

Amir_Arama — Thu, 17 Jun 2021 12:03:46 GMT

i'm not sure what i should configure when working with xor. on google i found that xor don't need sw configuration.

by the way, do you think that lacp will work better than xor?

Re: Xor bond rx load balancing

Vladimir — Thu, 17 Jun 2021 12:07:28 GMT

LACP would be my first choice, whenever possible. There are some situations, when it is not, such as VMware ESXi with no distributed switch, but required link redundancy.

Re: Xor bond rx load balancing

Amir_Arama — Thu, 17 Jun 2021 12:29:32 GMT

I will try change to lacp next week

Thx