For an aggregation pair serving as HSRP gateway for downstream L2 access switches, is there any advantage of using trunk between the aggregation pair than simply a L3 link?
If vPC is used, a trunk is somewhat justified because vPC requires the trunk for peer link. But without vPC why not just put links between aggregation pair into a L3 bundle for simplicity and visibility? As I understand per port per VLAN traffic stats is not available on any platform.
VPC pair could be used as layer-3 as well. In addition to VPC peer link, you add an addition link used for layer-3 only or use an SVI from the VPC peer link connection. Deployment of each one depends on the Nexus platform you use.
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