EAPS and Load Sharing

[Mrxlazuardin]

Hi,

I want to double my ring bandwidth between one BD8800 and two X460. Which one is the best, using EAPS over load sharing ports (ex. LACP) or use multiple domain rings with different ways (clockwise and conter clockwise)?

Best regards,

[Paul_Russo]

Hey Lazuardi

You can change the CRC to customize the hash. The command is

"configure sharing address-based custom"
"configure sharing address-based custom [ipv4 [L3-and-L4 | source-only |"
"destination-only | source-and-destination] | hash-algorithm [xor | crc-16 |"
"crc-32 [lower | upper]]]"

I would recommend calling GTAC to help set this up to make sure that everything is set up properly.

P

[Paul11]

Hi Paul Russo,

It is in Production live network. Please advice how to load share on two links.
Really appreciate your help and thanks for your time.

We do need your advice.

Thanks sir.

[Paul_Russo]

Hey Lazuardi

you will not get a perfect load balance. that is why it is called sharing or link aggregation versus load balanced. It all depends on how the addresses are hashed. I see you are using L3 and L4 which should hash based on src and dst IP and IP port number. How much traffic are you providing across the link? is this production or in a lab?

Thanks
P

[Paul11]

Utilization is high on Link 1 only. I want to use load balance on both links.
Please kindly see the below output and advice thanks.

* I try L2 static, L3_L4 and LACP. all the same. Ports are not load balance. *

enable sharing 1 grouping 1,4

enable sharing 1 grouping 1,4 L3_L4

enable sharing 1 grouping 1,4 algorithm address-based L3_L4 lacp

CoreSW # sh port 1,4 utilization bandwithPort Link Link Rx Peak Rx Tx Peak Tx
State Speed % bandwidth % bandwidth % bandwidth % bandwidth
================================================================================
Link_1> A 1000 82.06 94.94 48.23 55.72
Link_2> A 1000 0.25 0.30 1.34 1.57
================================================================================
> indicates Port Display Name truncated past 8 characters
Link State: A-Active, R-Ready, NP-Port Not Present, L-Loopback

Please help me how to load balance these two links together. Thanks sir.

[Paul_Russo]

Hello Linn the LAG is what we call sharing it is created using the command enable sharing Grouping algorithm address LACP You can either set the group as static which means it will not use LACP or add LACP where the two sides communicate to establish the LAG group. The effect is that you share the load over all of the links in the LAG. It will not be balanced because the traffic is sent over a particular port based on the hash and is flow based. So for example if I have two flows one can be a ping and the other can be a TFTP connection. They can be assigned to two different ports but the data I'll not be the same. Hope that helps