About Hanfeng Cai

Hanfeng Cai · 03-06-2025

Your understanding is correct! Since BDPU is sent out every 2 seconds, it is difficult to manage it effectively during ISSU control plane frozen time.

Hanfeng Cai · 02-25-2025

You need to make sure all ports are host interface when you ISSU system. They can't participate STP calculation.https://www.cisco.com/c/en/us/td/docs/dcn/nx-os/nexus9000/101x/upgrade/cisco-nexus-9000-nx-os-software-upgrade-downgrade-guide-101x/m-upgr...

Hanfeng Cai · 03-02-2023

That's cool.

Hanfeng Cai · 03-02-2023

You're using 1st generation N9K. It's not listed in support list. Beginning Cisco NX-OS Release 9.3(3), SVI and subinterface unicast counters are supported on Cisco Nexus 9300-EX, 9300-FX/FX2 switches; and Cisco Nexus 9500 series switches with X9700-...

Hanfeng Cai · 03-02-2023

Basically, switch is doing HW forwarding, I don't believe you hit such basic performance issue. You can take a look the physical path of your testing flow and figure out which hop triggers this problem. In case of any low speed issue, I always suspec...

Member Since	‎03-11-2014 07:06 PM
Date Last Visited	‎03-13-2025 11:31 PM
Posts	32
Total Helpful Votes Received	32

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Re: Nexus - ISSU upgrade could not be done

Re: Nexus - ISSU upgrade could not be done

Re: VxLAN Slow Performance when routing

Re: Nexus 9332PQ SVI (Interface VLAN) Graph

Re: VxLAN Slow Performance when routing