Configuring CES service on RTN950

Felipe Sevillano, Transport & Data Planning Department, TELECOM PERSONAL PARAGUAY

 

In order to deploy LTE Services on city X, in my company, we decide to implement a MW backbone due to the lag of fiber optic availability to reach city X. We choose to use the RTN950 to implement a XPIC 2+2 MW backbone in order to get 400Mbps of throughput with a full IP solution.

The issue to solve in this project was the E1 legacy services that can´t be replaced by IP services yet, so we choose to implement CES E1s using the mpls ability of RTN950. In the following topology you can see the interconnection of the sites and also the mpls tunnels and CES to be deployed.

The steps for configuring CES services you can check it below:

1.         Create an MPLS Tunnel:

a.       Assign an mpls lsr id to the devices.

b.      Configure the IF/GE port to work in Layer 3 mode and assign an IP address to each one.

c.       Add a positive and negative tunnel id that should be inverted in the other end.

d.      Complete the tunnel parameters that include: tunnel name, next hop, sink node, in label and out label.

2.       Configure OAM parameters for the tunnel:

a.       Enable OAM status.

b.      Set detection mode to manual.

c.       Detection packet Type: FFD

d.      Detection packet interval: 3.3

e.       Select the opposite tunnel id as the reverse tunnel

3.         Configure E1 physical port:

a.       Disable DCN management of E1 ports.

b.      E1 port should be set up in layer 1.

c.       Set up frame format to unframed.

4.         Configure PW to emulate E1s (CES service):

a.       Go to create CES service.

b.      Set PW ID.

c.       Service name.

d.      Set the mode to UNI-UNI.

e.       PW signal type is static.

f.       PW type is SAToP.

g.      Direction is set to bidirectional.

h.      PW encapsulation type: MPLS

i.        PW ingress label:  16 to 1048575

j.        PW egress label: 16 to 1048575

k.      Tunnel type: MPLS

 

More details at support.huawei.com.

 

The library of reference is OptiX RTN 950 Product Documentation.

Very Good info...!!!

topology is very clear to understand the scenario