Data Center Switches

Hi All, Please could someone explain me how the traffic enters the vxlan tunnel,I am comparing this with GRE and in GRE the routing process puts the traffic in tunnel interface but how does this happen in NVE.I think I  am missing a basic understandi...

Hi, We are planning to purchase several Cisco Nexus - N9K-C93180YC-FX3 switches. We will run just basic layer2 vlan and vPC, static routing. Apart from that we will not run anything. Do we need to purchase "NXOS-ES-XF" - NX-OS Essentials license for ...

Is it possible to deploy/manage a spineless VXLAN/EVPN fabric with DCNM using pre-built templates? Everything that I've read or seen in the configuration guide points to no. 

I have realized that although I have the following local users configured I cannot access with them, in fact I have added a test one and I cannot. local user CONFIGMy nexus has aaa configured with an ISE server for authentication, with remote users i...

As Cisco build & price suggests, there are two options for Power Modules on Nexus 9336c-FX2:NXA-PAC-1100W-PI2NXA-PHV-1100W-PEBesides Airflow direction what is the main difference between them? PHV provides High voltage. In what situation do we need t...

Hello, can't enable "no-drop" pfc queue  on Cisco Nexus 3064 or Nexus3548: switch(config-cmap-nqos)# policy-map type network-qos p1switch(config-pmap-nqos)# class type network-qos c1switch(config-pmap-nqos-c)# pause no-dropWarning: Pause no-drop cann...

Let's say if we were to upgrade from 9148T Fabric Switch thru to Cisco MDS 9396T, what is best and simple method. On a high level; In Brocade, we would clear configuration on the new switch first, assign an unique Domain ID, ISL it to the legacy swit...

What is cisco SFP part number for  "1Gbase-CISCO-AVAGO". I am unable to find by "1Gbase-CISCO-AVAGO" or "SFBR-5780APZ-CS2" on cisco.com ccw or https://tmgmatrix.cisco.com/.Ethernet1/1transceiver is presenttype is 1Gbase-CISCO-AVAGOname is CISCO-AVAGO...

We are getting below error continuously in our Nexus 7k device. %USER-2-SYSTEM_MSG: (cmd_rep_attr_add) tlv_handle is full - ipqosmgr But there are not enough details on the Internet to understand this. Is anyone having experience with this kind of er...

Hi, Is there any way of monitoring the configured levels of EVPN Multisite unicast/broadcast/multicast traffics, e.g. to baseline a topology before optimising storm control values. Also, I see there is a new feature "Dual RD" in 9.3(5) and later. Wha...

Hi I need to upgrade from version 5.1(3)N1(1) to version 7.3(8)N1(1) Nexus 4x N5K-C5548P (vPC) + dual-homed FEXs I want to do it via ISSU, but I can't identify the paths from version 5.1 onwards. I needed to go to version 5.2, but I couldn't find thi...

Hi, I was wonderring about the Architectural difference between a N3k/N5k/N9k Switches.I can't find good information on it, my Google-Fu seems to not be sufficient enough. Since we got a problem at a customer where a Nexus 3k (N3548P-10GX to be exact...