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CCIE Data Center Written & Lab Exam : Discussion & Sharing

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  1. admin
    May 23, 2020 at 12:03

    Lets begin with CCIE Data Center Discussion

  2. Cellini
    May 25, 2020 at 19:57

    What if i forget UCS password?
    How can i reset it?

  3. Jordan
    June 1, 2020 at 08:26

    What all operating systems are supported on UCS?

    • Jaxon
      June 2, 2020 at 12:45

      Microsoft Windows Server 2008
      Microsoft Windows Server 2003 R2
      Red Hat Enterprise Linux 5.3
      Novell SUSE Linux Enterprise Server 11
      VMware vSphere 4

    • Ryan
      June 4, 2020 at 15:10

      Red Hat Enterprise Linux 4.8
      VMware Infrastructure 3.5 Update 4

  4. Mateo
    June 3, 2020 at 13:59

    Can anybody tell me what is UCS Express?

    • Connor
      June 5, 2020 at 11:52

      The Cisco Unified Computing System Express (UCS Express) is a converged networking, computing, and virtualization platform for hosting essential infrastructure services and mission-critical business applications in the lean branch office.

  5. Ronnie
    June 7, 2020 at 22:35

    What happen if the fabric extender is connected to fabric interconnect using 4 links and one of the links fail?

    • Ezra
      June 9, 2020 at 19:12

      The server interfaces that are affected will either lose connectivity or fail over to another fabric extender, depending if interface is created as a HA interface. UCS M71KR-E/ UCS M71KR-Q Converged network adapter has the capability to fail over Ethernet interfaces if so configured. UCS 82598KR-CI 10 Gigabit Ethernet Adapter does not have this capability. Fibre Channel interfaces that are pinned to failing fabric extender link will just fail and their HA capability depends purely on host side multipathing driver.

  6. Jake
    June 8, 2020 at 12:32

    What are the major changes in new version?

  7. Kenzo
    June 10, 2020 at 11:04

    If anybody creating practice lab for new version, pls let me know.

    • Colton
      June 11, 2020 at 13:50

      Waiting for labs.

  8. Nick
    June 30, 2020 at 10:55

    Share study material pls.
    Thanks in advance.

  9. Fabrizio
    July 7, 2020 at 08:12

    OSPFv2 and OSPFv3 are very similar. OSPFv3 still establishes neighbor adjacencies, has areas, different network types, the same metrics, runs SPF, etc. There are however some differences. OSPFv2 runs on top of IPv4 and since OSPFv3 runs on IPv6, some changes had to be made.

    Here are some of the differences:

    1. Link-local addresses: OSPFv3 packets are sourced from link-local IPv6 addresses.
    2. Links, not networks: OSPFv3 uses the terminology links where we use networks in OSPFv2.
    3. New LSA types: there are two new LSA types, and LSA type 1 and 2 have changed.
    4. Interface commands: OSPFv3 uses interface commands to enable it on the interface, we don’t use the network command anymore as OSPFv2 does.
    5. OSPFv3 router ID: OSPFv3 is unable to set its own router ID like OSPFv2 does. Instead, you have to manually configure the router ID. It is configured as a 32-bit value, same as in OSPFv2.
    6. Multiple prefixes per interface: if you have multiple IPv6 prefixes on an interface then OSPFv3 will advertise all of them.
    7. Flooding scope: OSPFv3 has a flooding scope for different LSAs.
    8. Multiple instances per link: You can run multiple OSPFv3 instances on a single link.
    9. Authentication: OSPFv3 doesn’t use plain text or MD5 authentication as OSPFv2 does. Instead, it uses IPv6’s IPSec authentication.
    10. Prefixes in LSAs: OSPFv2 shows networks in LSAs as network + subnet mask, OSPFv3 shows prefixes as prefix + prefix length.

  10. Alexis
    July 9, 2020 at 08:10

    OSPFv2 stands for Open Shortest Path First version 2 and OSPFv3 stands for Open Shortest Path First version 3. OSPFv2 is the IPv4’s OSPF version, whereas OSPFv3 is the IPv6’s OSPF version. In OSPFv2, many OSPF instances per interface are not supported, whereas in OSPFv3, many OSPF instances per interface are supported.

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