- Only the Nexus 32 port 10G M1 and 48 port 1/10G F2 linecards support connectivity to Fabric Extenders
- Double Layer VPC is NOT supported when connecting a Nexus 2000 to Nexus 7000. Each 2K must be single homed to a Nexus 7000. Servers are then dual-homed across the Nexus 2000s.
- Nexus F2 linecards need to be in a dedicated VDC or switch. I’m merely the middle man relaying the message. It does suck.
- Cisco should stop investing in the 6500. Invest that time and money somewhere else.
- If trying to use GLC-SX-MM (or any 1G optic) in a Nexus 5548/5596, don’t forget to manually set the speed to 1000. By default, all ports are 10G.
- The Cisco 4500 series switch is bad ass and should be deployed over 6500s for sure in the access layer and the majority of new mid-size Core deployments (not comparing to N7K).
- IP Addresses with a /16 subnet mask should not be assigned to any end host on a network. Do you like man-made disasters?
- Don’t buy a Nexus 5548P. Buy the Nexus 5548UP.
- If you need security between multi 10G interfaces, it really may be okay to use ACLs that are accelerated and processed in HW. Verify its okay you don’t need to track state. If you don't know, it probably is okay.
- Even if you end up using Nexus F1 cards in your chassis with proxy L3 routing, it’s probably still 5x better performance than what you currently have.
- My brother Mike Edelman is going to the Super Bowl and will probably see Julian Edelman of said favored Patriots. We are not related to Julian although he has good initials.
Facts and perspectives of the week in review. Short and to the point.
Jason Edelman, Founder & CTO of Network to Code.