Broadcom 57711 + ESX/ESXi 4.1 + Jumbo frames

Having a few problems getting Broadcom 57711 NIC working on ESX/ESXi 4.1 with MTU 9000.

ESX/ESXi 4.0 U2 I have no problems to do and work MTU 9000 and I can push our strong enough EQL PS6010 SAN get 550 000 kbit/s with e/s meter runs inside 4 x VM.

I read the documentation and found that an MTU of 1500 is supported only for the NIC in ESX/ESXi 4.1 57711. It has somethig to do with the fact that these cards have hardware iSCSI unloading, there is additional iSCSI adapters that appear under the storage adapters heading 4.1 hosts.

I everything configured properly with 1:1 binding maps iSCSI network to ports VMK iSCSI with an MTU of 1500. When configured, this is the max that I can get out the SAN is 280 000 kbit/s. If I try the same process using the virtual machine a MTU of 9000 / host appears to stop responding.

While I understand that it is a limitation of 1500 when using iSCSI NIC hardware I am unable to get the iSCSI Software to work with a MTU of 9000 on ESX/ESXi 4.1. If I try the software iSCSI using a MTU of 9000 of the VM / host appears to stop responding.

Is also a limitation, or am I missing something.

Is there anyone else out there has the same problems as me?

VCP3 & VCP4 32846

VSP4

VTSP4

Looks like a CD to update the Broadcom Driver (1.60.50.v41.2) was recently published in the area of downloads/drivers & tools vsphere.  I have not tried yet, hopefully, it will solve this problem.

Tags: VMware

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