The charge (LBT) Teaming and physics-based pass config?

I must say LBT is very promising, but I'm not clear on some points.

Since this is a feature of VMware how this interface with physical switches? And what strategy for load balancing should be used on the aggregates of physical switch?

I imagine that only traffic outgoing/evacuation could be balanced with this policy, but without a physical switch configured to complete this config this penetration/inbound traffic would be treated by the physical switch.

In NIC teaming the physical switch config might look like:

switchport access vlan 145

switchport trunk vlan native 145

switchport trunk allowed vlan 145,622,623

switchport trunk encapsulation dot1q

switchport mode trunk

spanning tree portfast

What strategy for load balancing is used on the physical switches? In the example above, no. How does this work? Well basically each NETWORK card is considered as being connected to a different device (see: http://blog.ioshints.info/2011/01/vmware-vswitch-does-not-support-lacp.html). In the case of LBT, configuration remains the same. This means THAT LBT is interfaced with physical switches identical regular grouping of NETWORK cards.

With regard to the question of if the exit/entry traffic is balanced, the answer is both. While the physical switch could handle the traffic of penetration before the vDS, switching as MAC address learning functions would ensure that the right interface is used. Using grouping of NETWORK cards for example, if an interface in a team of NETWORK adapter disconnects the physical switch manages failover? The answer is no at least not initially. From: http://www.vmware.com/files/pdf/techpaper/VMW-Whats-New-vSphere41-Networking.pdf

How does the LBT
LBT adjusts dynamically the mapping of physical virtual NIC ports the best balance the network load entering or leaving the ESX.
Host of ESXi 4.1. When LBT detects a condition of entry or exit-congestion on an uplink, signified by an average use of 75% or
over a period of 30 seconds, it will attempt to move one or more streams mapped to common links vmnic virtual ports
within the team.
LBT is a great tool and one I've been waiting a long time. I hope that answers your questions!

Tags: VMware

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