RDMA support

[Maryam]

Does Extreme 7520 series support RDMA and NVMe over fabric ??

[JamieR]

Hi Maryam

As pointed out below, RDMA does have options that could be used on any ethernet network (as does NVMe).  However others require underlying capabilities at the ethernet level for optimal performance such as Priority Flow Control (PFC) which the Fabric Engine products do not currently support (see https://extreme-networks.my.site.com/ExtrArticleDetail?an=000099793).   The specific requirements you are looking to achieve and the details of  your deployment may be something that your Extreme account team would be best suited to discuss.

[WillyHe]

Hello,

As I understand it well, L2 is not supported but L3 is supported.

Does this mean, a L3 subnet (vlan) must be local to an SPBM switch or SPBM-SMLT cluster?

regards

WillyHe

[WillyHe · Accepted solution]

Hello,

Following link explains how RDMA can work https://www.digitalocean.com/community/conceptual-articles/rdma-high-performance-networking

There are tree options

1. Specific switches designed to support RDMA.
2. "Normal" switches in a vlan RDMA-L2 support (so also SPBM setups).
3. "Normal" switches RDMA-L3 support (so also SPBM setups).

All solutions have their pros and cons, read the article.

Hope it helps

regards
WillyHe

[Yoann_Jonard]

Neither these protocols nor the RFC associated with them are mentioned in the release notes or the user guide, so I would say no unfortunately.