)]}'
{"doc/networking-guide/source/intro_basic_networking.rst":[{"author":{"_account_id":964,"name":"Anne Gentle","email":"annegentle@justwriteclick.com","username":"annegentle"},"change_message_id":"554d579d1499d15c3da206389f1efcd9546d9e66","unresolved":false,"context_lines":[{"line_number":35,"context_line":"each network host connects directly to a network device called a *switch*."},{"line_number":36,"context_line":"Still, this conceptual model is useful, and in network diagrams (including those"},{"line_number":37,"context_line":"generated by the OpenStack dashboard) an Ethernet network is often depicted as"},{"line_number":38,"context_line":"if it was a single bus. You\u0027ll sometimes hear an Ethernet netowrk"},{"line_number":39,"context_line":"referred to as a *layer 2 segment*."},{"line_number":40,"context_line":""},{"line_number":41,"context_line":"In an Ethernet network, every host on the network can send a frame directly to"}],"source_content_type":"text/x-rst","patch_set":2,"id":"7a016987_f27d26b2","line":38,"updated":"2015-05-27 04:21:21.000000000","message":"network","commit_id":"260a3fb7134fe38e02e6cdd73517060ead4a6671"},{"author":{"_account_id":964,"name":"Anne Gentle","email":"annegentle@justwriteclick.com","username":"annegentle"},"change_message_id":"554d579d1499d15c3da206389f1efcd9546d9e66","unresolved":false,"context_lines":[{"line_number":56,"context_line":"the appropriate NICs configured for promiscuous mode."},{"line_number":57,"context_line":""},{"line_number":58,"context_line":"As mentioned earlier, modern Ethernet networks uses switches to interconnect the"},{"line_number":59,"context_line":"networked hosts. A switch is a box of networking hardware with a large number of ports,"},{"line_number":60,"context_line":"that forwards Ethernet frames from one connected host to another. When hosts first send"},{"line_number":61,"context_line":"frames over the switch, the switch doesn’t know which MAC address is associated"},{"line_number":62,"context_line":"with which port. If an Ethernet frame is destined for an unknown MAC address,"}],"source_content_type":"text/x-rst","patch_set":2,"id":"7a016987_9243926c","line":59,"updated":"2015-05-27 04:21:21.000000000","message":"modern Ethernet networks use switches","commit_id":"260a3fb7134fe38e02e6cdd73517060ead4a6671"},{"author":{"_account_id":964,"name":"Anne Gentle","email":"annegentle@justwriteclick.com","username":"annegentle"},"change_message_id":"554d579d1499d15c3da206389f1efcd9546d9e66","unresolved":false,"context_lines":[{"line_number":65,"context_line":"associated with a port, it can send Ethernet frames to the correct port instead"},{"line_number":66,"context_line":"of broadcasting. The switch maintains the mappings of MAC addresses to switch"},{"line_number":67,"context_line":"ports in a table called a *forwarding table* or *forwarding information base*"},{"line_number":68,"context_line":"(FIB). Switches can be dasiy-chained together, and the resulting connection of"},{"line_number":69,"context_line":"switches and hosts behaves like a single network."},{"line_number":70,"context_line":""},{"line_number":71,"context_line":".. _OSI model: http://en.wikipedia.org/wiki/OSI_model"}],"source_content_type":"text/x-rst","patch_set":2,"id":"7a016987_d230ea09","line":68,"updated":"2015-05-27 04:21:21.000000000","message":"daisy-chained","commit_id":"260a3fb7134fe38e02e6cdd73517060ead4a6671"},{"author":{"_account_id":964,"name":"Anne Gentle","email":"annegentle@justwriteclick.com","username":"annegentle"},"change_message_id":"554d579d1499d15c3da206389f1efcd9546d9e66","unresolved":false,"context_lines":[{"line_number":149,"context_line":"are the network number. In dotted quad notation, the netmask would be written as"},{"line_number":150,"context_line":"``255.255.255.0``. CIDR notation includes both the IP address and netmask,"},{"line_number":151,"context_line":"and this exmaple would be written as ``192.168.1.5/24``."},{"line_number":152,"context_line":""},{"line_number":153,"context_line":"Sometimes we want to refer to a subnet, but not any particular IP address on"},{"line_number":154,"context_line":"the subnet. A common convention is to set the host identifer to all zeros to make"},{"line_number":155,"context_line":"reference to a subnet. For example, if a host\u0027s IP address is ``10.10.53.24/16``, then"}],"source_content_type":"text/x-rst","patch_set":2,"id":"7a016987_32097e32","line":152,"updated":"2015-05-27 04:21:21.000000000","message":"example","commit_id":"260a3fb7134fe38e02e6cdd73517060ead4a6671"},{"author":{"_account_id":964,"name":"Anne Gentle","email":"annegentle@justwriteclick.com","username":"annegentle"},"change_message_id":"e18419e34e5a0bd2ed6c7aa83333e69910c99dcc","unresolved":false,"context_lines":[{"line_number":178,"context_line":""},{"line_number":179,"context_line":"    $ arping 10.30.0.132"},{"line_number":180,"context_line":"\tARPING 10.30.0.132 from 10.30.0.131 eth0"},{"line_number":181,"context_line":"\tUnicast reply from 10.30.0.132 [54:78:1A:86:1C:0B]  0.670ms"},{"line_number":182,"context_line":"\tUnicast reply from 10.30.0.132 [54:78:1A:86:1C:0B]  0.722ms"},{"line_number":183,"context_line":"\tUnicast reply from 10.30.0.132 [54:78:1A:86:1C:0B]  0.723ms"},{"line_number":184,"context_line":"\tSent 3 probes (1 broadcast(s))"}],"source_content_type":"text/x-rst","patch_set":2,"id":"7a016987_f2b52631","line":181,"updated":"2015-05-27 03:39:53.000000000","message":"Welcome back Lorin! :)\n\nThe test is failing due to these tabs.","commit_id":"260a3fb7134fe38e02e6cdd73517060ead4a6671"},{"author":{"_account_id":9382,"name":"Shilla Saebi","email":"shilla.saebi@gmail.com","username":"shillasaebi"},"change_message_id":"cbb2044505d94564f16b4a64258fb7bf6d938595","unresolved":false,"context_lines":[{"line_number":28,"context_line":"    2: eth0: \u003cBROADCAST,MULTICAST,UP,LOWER_UP\u003e mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000"},{"line_number":29,"context_line":"        link/ether 08:00:27:b9:88:74 brd ff:ff:ff:ff:ff:ff"},{"line_number":30,"context_line":""},{"line_number":31,"context_line":"Conceptually, you can think of an Ethernet network is a single bus that each of the"},{"line_number":32,"context_line":"networked hosts connects to. In early implementations, an Ethernet"},{"line_number":33,"context_line":"network consisted of a single coaxial cable that hosts would tap into to connect"},{"line_number":34,"context_line":"to the network. Modern Ethernet networks do not use this approach, and instead"}],"source_content_type":"text/x-rst","patch_set":3,"id":"7a016987_0912c209","line":31,"updated":"2015-05-27 14:38:58.000000000","message":"this should be \"as\" instead of \"is\"\n\nConceptually, you can think of an Ethernet network as a single bus that each...","commit_id":"1cce4baad3f5155c08fb46cdf566cfdcc32b3620"}]}