commit	a17354e0ae6dcb8e5b71c9cb6335564e61acb582	[log] [tgz]
author	Amit Ghosh <aghosh@radisys.com>	Wed Aug 23 12:56:04 2017 +0100
committer	Amit Ghosh <aghosh@radisys.com>	Wed Aug 23 12:58:13 2017 +0100
tree	4f0fb444bb87b87d062a7bd07204b790943687a5
parent	c6cf168d0096fad640bd10fb37e6c7fc2d120943 [diff]

tree: 4f0fb444bb87b87d062a7bd07204b790943687a5

README.md

ONOS DHCP L2 RELAY Application

The ONOS dhcpl2relay application is a DHCP Relay Agent which does Layer 2 relay.

The DHCP packets sent towards the DHCP Server (DHCP DISCOVER and DHCP REQUEST) are double tagged by this app. It retrieves the tag values to be used from the Sadis Service. Similarly it replaces the tags on the packets received from the server (DHCP OFFER and DHCP ACK) with priority tags.

DHCP Option 82 with CircuitId and RemoteId are added to packets sent to the DHCP server and Option 82 received from the server are removed before relaying back to the client. The CircuitId and Remote Id are retrieved from Sadis Service.

Configuration

"org.opencord.dhcpl2relay" : {
      "dhcpl2relay" : {
        "dhcpserverConnectPoints" : [ "of:00000000000000b2/2" ]
      }
    }

Configuration Parameters

dhcpServerConnectPoints

Port on the switch through which the DHCP Server is reachable

Example configuration of Sadis

   "org.opencord.sadis" : {
      "sadis" : {
        "integration" : {
          "cache" : {
            "enabled" : true,
            "maxsize" : 50,
            "ttl" : "PT1m"
          }
        },
        "entries" : [ {
          "id" : "uni-128", # (This is an entry for a subscriber) Same as the portName of the Port as seen in onos ports command
          "cTag" : 2, # C-tag of the subscriber
          "sTag" : 2, # S-tag of the subscriber
          "nasPortId" : "uni-128"  # NAS Port Id of the subscriber, could be different from the id above
        }, {
          "id" : "1d3eafb52e4e44b08818ab9ebaf7c0d4", # (This is an entry for an OLT device) Same as the serial of the OLT logical device as seen in the onos devices command
          "hardwareIdentifier" : "00:1b:22:00:b1:78", # MAC address to be used for this OLT
          "ipAddress" : "192.168.1.252", # IP address to be used for this OLT
          "nasId" : "B100-NASID" # NAS ID to be used for this OLT
        } ]
      }
    }