Changes between Version 5 and Version 6 of GENIHwOpenFlowIssues


Ignore:
Timestamp:
05/12/14 14:31:15 (7 years ago)
Author:
nriga@bbn.com
Comment:

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  • GENIHwOpenFlowIssues

    v5 v6  
    1818= Problems with HW OF switches =
    1919
     20== Useful documents ==
     21In OF 1.0 spec there is no easy, programatic way to figure out what is supported by the switch. Some times the best place to look is in the documentation published by the vendors. Although the information on these documents might not be 100% accurate, it is always a good place to start:
     22   * HP switches installed on the IG racks (HP J8697A Switch E5406zl): [http://h20565.www2.hp.com/portal/site/hpsc/template.BINARYPORTLET/public/kb/docDisplay/resource.process/?spf_p.tpst=kbDocDisplay_ws_BI&spf_p.rid_kbDocDisplay=docDisplayResURL&javax.portlet.begCacheTok=com.vignette.cachetoken&spf_p.rst_kbDocDisplay=wsrp-resourceState%3DdocId%253Demr_na-c03170243-3%257CdocLocale%253D&javax.portlet.endCacheTok=com.vignette.cachetoken OpenFlow notes]
     23
    2024== Action is SW vs HW path on the switch ==
    2125Many of the OF switches deployed do not support the whole OF 1.0 spec in the hardware path, when an action is sent to the SW path this causes great degradation on the performance. There is no easy way to tell which actions are supported in HW and which actions are supported in SW. Below is a list of known actions that end up is software, that have been discovered after extensive debugging.