I am pretty exhausted after having a great NYE. It’s the third week of January but it feels like I need six months of hibernation after 1 night of celebration. If you are feeling the same way, well, we definitely meet up because we’re a good fit for each other. We’re compatible! Let’s be friends!
The topic I like to discuss today is about port-channel in Nexus. Port-channel bundles physical links to form one logical link by using the channel group that provides aggregated bandwidth and redundancy. On the M-series module, you can bundle up 8 physical links but with the release of Cisco NX-OS 5.1, you can bundle up to 16 ports on the F series module. The Port-channel feature does not need a license in order for you to use it. However, since you are going to use VDCs, you need to have the Advanced Services license. This need to be installed before you configure ports within the VDC. Make sure that all member ports are in the same VDC. You can have them configured in any desired VDC but if you are going to configure the load balancing, you must do it in the default VDC. (more…)