Why Does Vpc Not Block Either Of The Vpc Uplinks?

1.	Why Does Vpc Not Block Either Of The Vpc Uplinks?
Answer» Nexus 7000 has a loop prevention method that drops TRAFFIC traversing the peer link (DESTINED for a vPC peer link) when there are no failed vPC ports or links. The rule is SIMPLE: if the packet crosses the vPC peer link, it may not go out any port in a vPC even if that vPC does not have the ORIGINAL VLAN. Nexus 7000 has a loop prevention method that drops traffic traversing the peer link (destined for a vPC peer link) when there are no failed vPC ports or links. The rule is simple: if the packet crosses the vPC peer link, it may not go out any port in a vPC even if that vPC does not have the original VLAN.

Answer»

Nexus 7000 has a loop prevention method that drops TRAFFIC traversing the peer link (DESTINED for a vPC peer link) when there are no failed vPC ports or links. The rule is SIMPLE: if the packet crosses the vPC peer link, it may not go out any port in a vPC even if that vPC does not have the ORIGINAL VLAN.

Nexus 7000 has a loop prevention method that drops traffic traversing the peer link (destined for a vPC peer link) when there are no failed vPC ports or links. The rule is simple: if the packet crosses the vPC peer link, it may not go out any port in a vPC even if that vPC does not have the original VLAN.

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