Cristina, Before rebooting during the VSS conversion, how long had it been since the chassis was rebooted ? You may be hitting this: https://www.cisco.com/c/en/us/support/docs/field-notices/637/fn63743.html  Please call TAC and let them investigate. Cheers, Scott Hodgdon Senior Technical Marketing Engineer Enterprise Networking Group ... View more

Knaik99, This module is 48 ports based on RJ-45 connectors. This is not transceiver based. Cheers, Scott Hodgdon Senior Technical Marketing Engineer Enterprise Networking Group ... View more

Mohammad, No End of Sale announcement has been made for the 6708-XL chassis, Sup6T or Sup2T at this time.  Cheers, Scott Hodgdon Senior Technical Marketing Engineer Enterprise Networking Group ... View more

Leo, It would be better to go with 16.12.1 as it is an Extended Maintenance release. 16.11 is a Standard Maintenance release and will have a much shorter lifespan (see https://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/ios-xe-16/bulletin-c25-741178.html ). If a customer really wants 16.11.1c, it can be made available through TAC, but there will be no further maintenance releases on this train most likely. Cheers, Scott Hodgdon Senior Technical Marketing Engineer Enterprise Networking Group ... View more

Just a note for the community ... This bug only affects those running IOX XE 16.11.1 and is fixed in 16.11.1c : https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvp73396 You will not find it in the 16.12.1 Resolved Caveats section of the Release Notes, but 16.12.1 will have the 16.11.1c fixes in them. Given that 16.12.1 is an Extended Maintenance Release, it would be a good idea to upgrade to that for the fix instead of 16.11.1c . Cheers, Scott Hodgdon Senior Technical Marketing Engineeer Enterprise Networking Group ... View more

vinothib1, If you are deploying Cisco DNA Center and Assurance, then you can search the Assurance database for the MAC Address or IP Address (or user ID if integrating with CIsco ISE) and DNA Center will give you an option to show where in the topology that user is connected.  Cheers, Scott Hodgdon Senior Technical Marketing Engineer Enterprise Networking Group ... View more

  mahdi makkawi, I would strongly recommend that you look at the latest 16.9.x release as this will have the same features as 16.8.1 and it is a long-lived release. 16.8.1 has already passed the End of Software Maintenance : https://www.cisco.com/c/en/us/products/collateral/routers/asr-1000-series-aggregation-services-routers/eos-eol-notice-c51-740983.html (yes that says routers, but this is the link you get to from the Catalyst 950o End of Sale page as well). To get an understanding of the different timelines associated with the different IOS XE 16 release, see https://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/ios-xe-16/bulletin-c25-741178.html . One you have chose your release, please follow the upgrade procedures outline in the Release Notes for that release. Cheers, Scott Hodgdon Senior Technical Marketing Engineer Enterprise Networking Group ... View more

ergonullu, You need 3 DNA Centers to build a cluster. If you have only 2, then you can have one active and on as cold standby (no cluster). If you need to restore a backup, it must be restored onto a system with same version (system and packages) as the system from which the backup came. When building a DNA Center, you need to use a CA-signed certificate and not a self-signed certificate. When you back up a cluster, you do not back up each member.  Cheers, Scott Hodgdon Senior Technical Marketing Engineer Enterprise Networking Group ... View more

Mohsen, How many links of each speed are required in this VSS setup ? Do you require large buffers for any specific applications ? We now have the Catalyst 9K series that supports StackWise Virtual (SWV) which is the same functionality as VSS. The Catalyst 9K will have a longer lifespan and higher scale than the Catalyst 6880-X-LE. Cheers, Scott Hodgdon Senior Technical Marketing Engineer Enterprise Networking Group ... View more

Andrew, To determine the best platform, we need a little information to understand the design and ultimate goal for the network. To that end, please answer a few questions: 1. How many links of each speed will be required to be connected to the core ? 2. Is the ultimate goal to go down a software-defined path, utilizing something like Cisco SD-Access ? 3. What level of resiliency is required here ? 4. Is segmentation / micro-segmentation in the campus a requirement now or down the road ? 5. Do you have a diagram of the current network you can share ? Cheers, Scott Hodgdon Senior Technical Marketing Engineer Enterprise Networking Group ... View more

Jookez, At this point in time, we only support embedded wireless controller (eWLC) function in Catalyst 9000 family switches when those switches are part of a Cisco SD-Access architecture. If you are not deploying SD-Access, then you cannot enable the eWLC function in the switch. Cheers, Scott Hodgdon Senior Technical Marketing Engineer Enterprise Networking Group ... View more

Cory, No change since my previous statement. Cheers, Scott Hodgdon Senior Technical Marketing Engineer Enterprise Networking Group ... View more