Skip to main content
NetApp Response to Russia-Ukraine Cyber Threat
In response to the recent rise in cyber threat due to the Russian-Ukraine crisis, NetApp is actively monitoring the global security intelligence and updating our cybersecurity measures. We follow U.S. Federal Government guidance and remain on high alert. Customers are encouraged to monitor the Cybersecurity and Infrastructure Security (CISA) website for new information as it develops and remain on high alert.
NetApp Knowledge Base

Why does a 25gbE SFP+ in an Element storage node not negotiate to 10gbE?

Views:
194
Visibility:
Public
Votes:
0
Category:
element-software
Specialty:
solidfire
Last Updated:

Applies to

  • Element Software
  • H series storage nodes with 25GbE-capable NICs
    • H610S
    • H410S
    • H300S/H500S/H700S (deprecated)

Answer

Element storage nodes with NICs capable of 25GbE do NOT auto-negotiate to that speed (even with 25GbE SFP+ transceivers connected); however, the switches they connect to can.
 
Storage nodes with 10GbE SFP+ transceivers can be connected to switch ports with 25GbE SFP+ transceivers as the switch is responsible for auto-negotiating the connection speed; however, the switch will negotiate only to 10GbE in that scenario.
 
Ideally, 10GbE transceivers should be used on both the switch and the storage side in this scenario, but in any case the negotiation is at the switch side.
 
 

Additional Information

additionalInformation_text

 

Scan to view the article on your device

 

  • Was this article helpful?