Data Center Switches

 Hello, i have a pair of 3548-X in a vpc domain in one DC, and another pair of 3548-X in another vpc domain in another DC.  i have all of them connected in a mesh. i have 3 vlans basically in a RPVST+ spanning tree. all of the vlans have converged be...

Hello,I have recently detected a LACP balance issue which I seem unable to solve. That's why I decided to share what I found out so far in order to see if anybody else has also seen this. The switch is 3164Q with NX-OS 7.0.3.I7.6. Reproduced the same...

Hello Guys,I need to know about the basic traffic flow of VPC of Nexus. We know in normal Port-channel the traffic can be load-shared between two physical link so that we can use maximum capacity of dual links. But in case of VPC of Nexus we know we ...

Hi guys, Can anyone told me what exactly will happen if I want to ping server 2 from server 1? this will help me a lot, thanks in advance 

Hi, We are planning to upgrade Nexus 9332PQ with Nexus9336C. Can we replace the secondary 9332PQ with 9336C? will there be any issue with VPC. This is our core switch, whats the best method to replace without downtime. Regards,gowrishankar

Hello, We're using VPC topology with FEX'es (straight through design). As I know - the STP should always sent own BPDU and see if's doesnt start to receive it.But when im checking my Nexus VPC port i see just a few BPDU's sent: LA2# show spanning-tre...

I have a cisco Nexus 6001 Chassis and ethernet103/1/19 was in BPDU errdisable state. After resetting the port , it went into down(link not connected) state. Any help on how to bring the port up?

Hello everyone,i would like to downgrade the epld for a C7706. This is for testing in a Lab environment. I understand that this is not usually done in Live, as the Upgrades and Downgrades are disruptive.It seems like this:"The allow-downgrade option ...

Hi all,I am about to purchase N9K-C93180YC-FX, and with NX-OS-ES-XF essential license.I need to use the N9k as the parent for the Cisco Nexus 2348UPQ.I wonder if N9k requires any license to install and enable the fabric extender feature. Regards Seek

Hi everybody I have a question that might be very simple but I'm trying to confirm whether I'm using the default VDC or a non-default one in my lab. I'm running 6.1(1) with a SUP1. I know that on the switch can only exist either the default VDC or th...

Hello, Need help with sampled netflow explained in below link: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus6000/sw/system_management/7x/b_6k_System_Mgmt_Config_7x/b_6k_System_Mgmt_Config_7x_chapter_010011.html#concept_B27322E2A7454...