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Luca Dell'Oca Principal Cloud Architect @Veeam
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Virtualization blog, the italian way.

Abilitare i jumbo frames su ESXi via riga di comando

Luca Dell'Oca, June 4, 2010December 4, 2016

Siccome ricevo parecchie richieste in merito a questo argomento, ho creato questo velocissimo post a futura memoria, per poterlo consultare quando necessario.

NOTA: per far funzionare i jumbo frames dovrete averli abilitati su ogni nodo della catena, quindi non solo esxi, ma anche switch di rete e storage iscsi.

  • fate login via ssh o console su ESXi
  • esxcfg-vswitch -l (vi elenca gli switch correnti, e per ognuno il valore mtu attuale)
  • esxcfg-vswitch -m 9000 vSwitch0 (portate la MTU di vswitch0 a 9000, ovvero i jumbo frames. Da fare sullo switch dove avete connesso la porta vmkernel di iscsi)
  • esxcfg-vswitch -l (adesso il valore di MTU che vi compare sarà 9000)
  • ripetete l’operazione per ogni switch che vi interessa e per ogni host
  • provate a fare un reboot di esxi per assicurarvi che l’impostazione venga mantenuta

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Tecnologia command lineesxijumbo frames

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