Skip to main content
NetApp Knowledge Base

Can an interface group (IFGRP) be modified after it is created?

Views:
3,234
Visibility:
Public
Votes:
1
Category:
ontap-9
Specialty:
NAS
Last Updated:

Applies to

ONTAP 9

Answer

  • Only member ports of an IFGRP can be modified (added/removed) after it is created
  • An IFGRP must be deleted and re-created to change the mode or distribution function
    • Move any lifs away from the ifgrp (ifgrp cannot be deleted with lifs hosted on it)
    • Delete any vlans on the ifgrp (ifgrp cannot be deleted if it contains vlans)
      • network port vlan delete -node <node> -vlan-name <ifgrp-vlan>
    • To remove/delete the existing IFGRP:
      • network port ifgrp delete -node <node> -ifgrp <ifgrp>
    • To recreate the IFGRP:
      • network port ifgrp create -node <node> -ifgrp <ifgrp> -distr-func <function> -mode <mode>
        • Distribution function:
          • mac - Network traffic is distributed based on MAC addresses
          • ip - Network traffic is distributed based on IP addresses
          • sequential - Network traffic is distributed in round-robin fashion from the list of configured, available ports
          • port - Network traffic is distributed based on the transport layer (TCP/UDP) ports
        • Mode:
          • multimode - Bundle multiple member ports of the interface group to act as a single trunked port
          • multimode_lacp - Bundle multiple member ports of the interface group using Link Aggregation Control Protocol
          • singlemode - Provide port redundancy using member ports of the interface group for failover
    • Port(s) need to be added to the new IFGRP:
      • network port ifgrp add-port -node <node> -ifgrp <ifgrp> -port <port>
    • Move lifs back to the recreated ifgrp

 

NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.