add enodeb setup doc
Change-Id: Ifb949dda447a5efa5815a84d9fbd5498bd3f73fb
diff --git a/profiles/comac/configure/enodeb.md b/profiles/comac/configure/enodeb.md
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+# eNodeB Setup
+
+## Supported eNodeBs
+
+COMAC's virtual EPC (OMEC) should work with any standard eNodeB. In this release, we tested the Accelleran E1000 and we will use this commercial enodeb to describe how
+to setup it in the COMAC environment.
+
+The Accelleran E1000 is a splitted enodeb, which include a RRU, and 3 containers:
+
+
+## Connect the RRU to the pod
+
+For physical connectivity, the RRU hardware box has a single 1G Ethernet interface. We need to connect it to the fabric. Since our breakout cable for fabric is 10G, so we connect the RRU to a Layer2 switch (as a converter) and then conenct it to the fabric. The layer2 switch should support both 1G interface and 10G interface.
+
+There are two logical connectivities for the RRU: (1) Control interface
+connection, between RRU and BBU for attaching process. (2) S1U interface
+connection, between RRU and SPGWU (SGWU+PGWU) for user traffic.
+
+## RRU configuration
+
+RRU need to talk to RAN-CU containers for 3GPP control plane and SPGWU for 3GPP data plane.
+
+The configuration file on RRU is located at /mnt/app/bootstrap.txt.
+find the "redis.hostname" line, and change the IP address value here.
+
+```bash
+redis.hostname:<redis IP>
+```
+where to get the redis IP? (1) in COMAC multicluster setup, you can use any node management IP of the remote cluster since the RAN-CU of RRU is running on remotely cluster; (2) in single cluster case, you use any node management IP in the cluster.
+
+
+## Configure the VNFs on the pod for the eNodeB
+
+This part will be introduced in the RAN-CU helm charts.
+
+
+## Connect a phone to the eNodeB
+
+We tested Samsung J5, with android system version 7.1.1.
+After EPC and RAN up, turn on the phone, the phone will automatically search and attach to COMAC EPC.
+
+## Setup verification
+
+Download a ping applicaiton on your phone. You can ping the SGI interface IP
+address of CDN container from the phone.
+
+The CDN service and containers will be introduced in other sections.
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diff --git a/profiles/comac/images/hardware-connectivity.png b/profiles/comac/images/hardware-connectivity.png
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