UCS - East West switching... Does not I think

Hi all hope you can enlighten us.

I have understood that the FI switch East West traffic, had a problem tonight where we removed Unplugged the South North portchannels at the Network Layer 3 to upgrade the kernel and all virtual machines in the UCS lost connectivity between them even if they are on the same VLAN.

So question is should downing uplinks really stop east west switching?

Hope you can shed some light,

Thank you

Assuming that end host for Ethernet mode: f you have vnic on the transmitter connected to the fabric A, the vnic to the destination to the fabric B, both on the same Vlan. then your traffic will leave the area of the UCS to the North and re-enter UCS on the other fabric.

Turning on the FI - A doesn't happen, if same vnic Van and initiator and target on A fabric.

Hope that clarifies your situation.

Tags: Cisco DataCenter

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