tag:blogger.com,1999:blog-1978652979840829013.post7536707591072241062..comments2024-02-13T07:05:41.069-08:00Comments on sFlow: HP proposes hybrid OpenFlow discussion at Open Daylight design forumPeterhttp://www.blogger.com/profile/00856599914190257147noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-1978652979840829013.post-9861283218601376702015-02-22T19:31:13.366-08:002015-02-22T19:31:13.366-08:00OpenFlow rules are applied to the FIB and aren'...OpenFlow rules are applied to the FIB and aren't visible to the routing protocol. Hybrid OpenFlow could be extended to operations on the RIB, but currently SDN efforts in the routing space are targeted at protocols like I2RS or BGP.Peterhttps://www.blogger.com/profile/00856599914190257147noreply@blogger.comtag:blogger.com,1999:blog-1978652979840829013.post-87915995988000770392015-02-22T15:05:32.167-08:002015-02-22T15:05:32.167-08:00One practical application for this is to use the H...One practical application for this is to use the Hybrid switch to peer with a traditional core router for routing between OF and legacy networks. Could one install a static flow in the regular routing table with OF then have that route propagated upstream?<br /><br />Do you have a packet walk through example for normal action? can you modify the packet then output to normal?<br />Morleyhttps://www.blogger.com/profile/01384434608958528118noreply@blogger.comtag:blogger.com,1999:blog-1978652979840829013.post-21965216513230968272015-02-21T14:50:38.152-08:002015-02-21T14:50:38.152-08:00The NORMAL action is an important feature for addr...The NORMAL action is an important feature for addressing hybrid OpenFlow use cases - <a href="http://blog.sflow.com/2014/10/super-normal.html" rel="nofollow">Super NORMAL</a>. You are correct, you still need to automate the basic network setup. The ONF standardized the OF-Config protocol (built on NETCONF) to bring up OpenFlow networks. You could use NETCONF to bring up switching and routing protocols in a hybrid OpenFlow network (NETCONF is one of the southbound protocols in OpenDaylight).<br /><br />The essential requirement is that the platform provide a way of composing normal forwarding with selective overrides. The hybrid approach to SDN isn't limited to OpenFlow. Hybrid SDN controllers can be built around I2RS, BGP FlowSpec, or implemented directly on open networking platforms like Cumulus Linux (<a href="http://blog.sflow.com/2014/06/restful-control-of-cumulus-linux-acls.html" rel="nofollow">RESTful control of Cumulus Linux ACLs</a>).<br /><br />Cumulus Linux demonstrates a different approach to automating configuration management. Instead of relying on NETCONF, you can use tools from the DevOps space to manage switch and server configurations, e.g. Puppet, Chef, Ansible, CFEngine, etc. Peterhttps://www.blogger.com/profile/00856599914190257147noreply@blogger.comtag:blogger.com,1999:blog-1978652979840829013.post-82649729214940164602015-02-21T14:17:43.392-08:002015-02-21T14:17:43.392-08:00The hybrid approach looks very appealing but how d...The hybrid approach looks very appealing but how do you setup the traditional protocols on the switch? you would still need to do switch by switch configuration for those protocols. Maybe we need a solution to automate the basic network setup then use Openflow to stir traffic.<br /><br />Question:<br /><br />With integrated hybrid mode can you have a flow that modifies a packet then send to normal action?<br />Morleyhttps://www.blogger.com/profile/01384434608958528118noreply@blogger.com