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Testing Cisco's Media-Centric Data Center

Light Reading
6/11/2009
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  • Key finding: The Nexus 7000 kept running a full traffic profile, with zero packets lost, when a linecard with an active control plane was physically removed from the switch.

    In the previously released IP Video Service Delivery Network report we detailed a series of control plane failover tests performed on Cisco's CRS-1 and ASR 9010 routers. In addition to these core and aggregation routers, Cisco asked that we run this test on the Nexus 7000 in the data center.

    To do this, we repeated the same procedure used when testing the CRS-1 and ASR 9010 as described in the previous article, consisting of running the full traffic profile under steady network conditions and physically removing the card with the active control plane.

    Throughout three full repetitions of the test we observed zero packets lost, indicating that a control plane failure in the Nexus 7000 would not induce a negative impact on the end user. That’s another useful piece of news for the service provider operating a data center. All he needs are two control planes in each Nexus 7000 switch for both control plane failure conditions and hitless software upgrade – and for that he gets many more good night sleeps.

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    lron58
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    lron58,
    User Rank: Light Beer
    12/5/2012 | 4:00:46 PM
    re: Testing Cisco's Media-Centric Data Center


    A statement was made,  "We accepted that for the major upgrade we would run all traffic except telepresence, digital signage, and IP video surveillance, leaving IP video, VoIP, and Internet traffic traversing one Nexus 7000, and VoIP and Internet traffic traversing the other Nexus 7000?."


     


    Why was this "accepted"?



    Ron


     

    cross
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    cross,
    User Rank: Light Beer
    12/5/2012 | 4:00:23 PM
    re: Testing Cisco's Media-Centric Data Center


    Hi Iron58,


    We accepted turning off the traffic profiles representing telepresence, digital signage, and IP video surveillance as part of the major upgrade test procedure due to the lack of Virtual Port Channel support in the earlier code from which we were upgrading (this is disclosed in the article).  Since traffic was still traversing the Device Under Test (Nexus 7000) we could perform the test without those streams.


    Apologies for the late response. Too much travel...


    Thanks, Carsten/EANTC

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