Table Of Contents
Managing RAN Backhaul Services
Overview of RAN Backhaul Services
Prerequisites
Sample Configlets for RAN Backhaul Services
Overview
CEM TDM using SAToP PW3
CEM TDM using CESoPSN
ATM/IMA PVP Service
ATM/IMA VCC Service
Managing RAN Backhaul Services
This chapter describes how to use Prime Provisioning to manage radio access network (RAN) backhaul services in Prime Provisioning. It contains the following sections:
•
Overview of RAN Backhaul Services
•Prerequisites
•Sample Configlets for RAN Backhaul Services
Overview of RAN Backhaul Services
Radio access network (RAN) transport manages the backhaul traffic (both voice and data) from the cell site base transceiver stations (BTSs) to aggregation nodes and to base station controllers (BSCs), between BSCs, and between the BSC and an associated mobile switching center (MSC). Figure 4-1 shows an example RAN backhaul topology.
Figure 4-1 Example RAN Backhaul Topology
Figure 4-2 is an abstracted topology view that is used in this chapter when discussing how to configure RAN backhaul services in the Prime Provisioning GUI.
Figure 4-2 Abstracted RAN Backhual Topology
Prime Provisioning uses Internet Protocol (IP) to transport backhaul traffic in RANs. You use Ethernet Virtual Circuit (EVC) policies and service requests in Prime Provisioning to provision the following services to support RAN backhaul traffic management:
•Circuit Emulation Time Delay Multiple Access (CEM TDM)
•Pseudowire provisioning of Asynchronous Transfer Mode (ATM)
In addition, the EVC service requests use CEM and pseudowire class objects to bundle common attributes for resuse on every node where the service is provisioned.
The basic workflow for configuring and managing RAN backhaul services in Prime Provisioning, involves the following tasks:
1. Verify prerequisites and preform necessary setup tasks.
2. Create CEM and/or pseudowire classes to be used in RAN backhaul policies and service requests.
3. Create the CEM TDM or ATM policy.
4. Create template(s) for use in the CEM TDM or ATM service request.
5. Create the CEM TDM or ATM service request.
6. Deploy the service request to the device(s) on the network.
The chapter is organized into two sections, one for CEM TDM services and one for ATM services. The above workflow tasks are documented in each of these sections.
Prerequisites
This section covers prerequisites and limitations you should be aware of before configuring RAN backhaul services in Prime Provisioning.
To create CEM TDM policies and service requests, you must first define the service-related elements Prime Provisioning, such as target devices and network links. Normally, you create these elements once. For some coverage of these tasks, see Setting Up the Prime Provisioning Services. Also see other chapters of this guide for how to perform basic infrastructure set up and discovery tasks. The information in the following chapters assumes you have already performed these preliminary tasks.
•Chapter 4 "Working with CEM TDM Services (RAN Backhaul)"
•Chapter 5 "Working with ATM Services (RAN Backhaul)"
Sample Configlets for RAN Backhaul Services
This section provides sample configlets for RAN backhaul service provisioning in Prime Provisioning. It contains the following subsections:
•Overview
•CEM TDM using SAToP PW3
•CEM TDM using CESoPSN
•ATM/IMA PVP Service
•ATM/IMA VCC Service
Overview
The configlets provided in this section show the CLIs generated by Prime Provisioning for particular services and features. Each configlet example provides the following information:
•Service
•Feature
•Devices configuration (network role, hardware platform, relationship of the devices and other relevant information)
•Sample configlets for each device in the configuration
•Comments
Note The configlets generated by Prime Provisioning are only the delta between what needs to be provisioned and what currently exists on the device. This means that if a relevant CLI is already on the device, it does not show up in the associated configlet.
Note The CLIs shown in bold are the most relevant commands.
CEM TDM using SAToP PW3
Configuration
•Service: RAN Backhaul.
•Feature: This sections contains sample configlets that would be generated for CEM TDM SAToP PW3 service on a cell site router and two distribution nodes (A and B).
•Device configuration:
–The cell site router is an MWR 2941-DC router with an IOS image.
Controller: E1 0/0
Interface(s): CEM 0/0
–Distribution node A is a 760X series device with IOS image.
Contoller: SONET 3/0/0
Interface(s): CEM 3/0/0
–Distribution node B is a 760X series device with IOS image.
Contoller: SONET 3/0/0
Interface(s): CEM 3/0/0
Configlets
Cell Site Router
|
pseudowire-class c76a3-1
encapsulation mpls
!
pseudowire-class c76a3-2
encapsulation mpls
!
controller E1 0/0
clock source internal
cem-group 0 unframed
!
interface CEM0/0
no ip address
cem 0
xconnect 10.0.0.1 2090102001 pw-class c76a3-1
backup peer 10.0.0.4 2090403001 pw-class c76a3-2
|
Distribution Node A
|
Distribution Node B
|
pseudowire-class c76a3-1
encapsulation mpls
preferred-path interface Tunnel211
!
controller SONET 3/0/0
ais-shut
framing sdh
clock source line
aug mapping au-4
!
au-4 1 tug-3 2
mode c-12
tug-2 1 e1 1 description m29a2-3(CEM0/0)
tug-2 1 e1 1 cem-group 100 unframed
!
interface CEM3/0/0
no ip address
cem 100
xconnect 10.0.0.1 2090102001 pw-class
c76a3-1 sequencing both
|
pseudowire-class c76a3-2
encapsulation mpls
preferred-path interface Tunnel340
!
controller SONET 3/0/0
ais-shut
framing sdh
clock source line
aug mapping au-4
!
au-4 1 tug-3 2
mode c-12
tug-2 1 e1 1 description m29a2-3(CEM0/0)
tug-2 1 e1 1 cem-group 100 unframed
tug-2 1 e1 1 framing unframed
!
interface CEM3/0/0
cem 100
xconnect 10.0.0.4 2090403001 pw-class
c76a3-2 sequencing both
|
Comments
•None.
CEM TDM using CESoPSN
Configuration
•Service: RAN Backhaul.
•Feature: This sections contains sample configlets that would be generated for CEM TDM CESoPSN service on a cell site router and two distribution nodes (A and B).
•Device configuration:
–The cell site router is an MWR 2941-DC router with an IOS image.
Contoller: E1 0/4
Interface(s): CEM 0/4
–Distribution node A is a 760X series device with IOS image.
Contoller: SONET 3/0/0
Interface(s): CEM 3/0/0
–Distribution node B is a 760X series device with IOS image.
Contoller: SONET 3/0/0
Interface(s): CEM 3/0/0
Configlets
Cell Site Router
|
pseudowire-class c76a3-1
encapsulation mpls
!
pseudowire-class c76a3-2
encapsulation mpls
!
controller E1 0/4
clock source internal
cem-group 0 timeslots 1-7
!
interface CEM0/4
cem 0
xconnect 10.0.0.1 3090102001 pw-class c76a3-1
backup peer 10.0.0.4 3090403001 pw-class c76a3-2
|
Distribution Node A
|
Distribution Node B
|
pseudowire-class c76a3-1
encapsulation mpls
preferred-path interface Tunnel211
!
controller SONET 3/0/0
ais-shut
framing sdh
clock source line
aug mapping au-4
!
au-4 1 tug-3 2
mode c-12
tug-2 2 e1 2 description m29a2-3(CEM0/4
cem 0)
tug-2 2 e1 2 cem-group 104 timeslots 1-7
!
interface CEM3/0/0
cem 104
xconnect 10.0.0.1 3090102001 pw-class
c76a3-1 sequencing both
|
pseudowire-class c76a3-2
encapsulation mpls
preferred-path interface Tunnel340
!
controller SONET 3/0/0
ais-shut
framing sdh
clock source line
aug mapping au-4
!
au-4 1 tug-3 2
mode c-12
tug-2 2 e1 2 description m29a2-3(CEM0/4 cem
0)
tug-2 2 e1 2 cem-group 104 timeslots 1-7
!
interface CEM3/0/0
cem 104
xconnect 10.0.0.4 3090403001 pw-class
c76a3-2 sequencing both
|
Comments
•None.
ATM/IMA PVP Service
Configuration
•Service: RAN Backhaul.
•Feature: This sections contains sample configlets that would be generated for ATM PVP service on a cell site router and two distribution nodes.
•Device configuration:
–The cell site router is an MWR 2941-DC router with an IOS image.
Contoller(s): E1 0/12, E1 0/13
Interface(s): ATM0/IMA2
–Distribution node A is a 760X series device with IOS image.
Interface(s): ATM 3/1/1
–Distribution node B is a 760X series device with IOS image.
Interface(s): ATM 3/1/1
Configlets
Cell Site Router
|
pseudowire-class c76a3-1
encapsulation mpls
!
pseudowire-class c76a3-2
encapsulation mpls
!
controller E1 0/12
framing NO-CRC4
clock source internal
ima-group 2 scrambling-payload
!
controller E1 0/13
framing NO-CRC4
clock source internal
ima-group 2 scrambling-payload
!
interface ATM0/IMA2
no ip address
ima version 1.0
ima group-id 2
atm mcpt-timers 1000 5000 10000
atm pvp 9 l2transport
cell-packing 28 mcpt-timer 3
xconnect 10.0.0.1 4090102003 pw-class c76a3-1
backup peer 10.0.0.4 4090403003 pw-class c76a3-2
no atm ilmi-keepalive
|
Distribution Node Z
|
Distribution Node Z Backup
|
pseudowire-class c76a3-1
encapsulation mpls
preferred-path interface Tunnel211
!
interface ATM3/1/1
no ip address
atm mcpt-timers 1000 5000 10000
atm pvp 9 l2transport
cell-packing 28 mcpt-timer 3
xconnect 10.0.0.1 4090102003 pw-class
c76a3-1
no atm enable-ilmi-trap
|
pseudowire-class c76a3-2
encapsulation mpls
preferred-path interface Tunnel340
!
interface ATM3/1/1
no ip address
atm mcpt-timers 1000 5000 10000
atm pvp 9 l2transport
cell-packing 28 mcpt-timer 3
xconnect 10.0.0.4 4090403003 pw-class
c76a3-2
no atm enable-ilmi-trap
|
Comments
•None.
ATM/IMA VCC Service
Configuration
•Service: RAN Backhaul.
•Feature: This sections contains sample configlets that would be generated for ATM VCC service on a cell site router and two distribution nodes.
•Device configuration:
–The cell site router is an MWR 2941-DC router with an IOS image.
Contoller(s): E1 0/8, E1 0/9
Interface(s): ATM0/IMA0, ATM0/ IMA0
–Distribution node A is a 760X series device with IOS image.
Interface(s): ATM 3/1/0
–Distribution node B is a 760X series device with IOS image.
Interface(s): ATM 3/1/0
Configlets
Cell Site Router
|
pseudowire-class c76a3-1
encapsulation mpls
!
pseudowire-class c76a3-2
encapsulation mpls
!
controller E1 0/8
framing NO-CRC4
clock source internal
ima-group 0 scrambling-payload
!
controller E1 0/9
framing NO-CRC4
clock source internal
ima-group 0 scrambling-payload
!
interface ATM0/IMA0
ima version 1.0
ima group-id 0
atm mcpt-timers 1000 5000 10000
!
interface ATM0/IMA0.1 point-to-point
snmp trap link-status
pvc 9/34 l2transport
cbr 255
encapsulation aal0
cell-packing 28 mcpt-timer 3
xconnect 10.0.0.1 4090102001 pw-class c76a3-1
backup peer 10.0.0.4 4090403001 pw-class c76a3-2
|
Distribution Node Z
|
Distribution Node Z Backup
|
pseudowire-class c76a3-1
encapsulation mpls
preferred-path interface Tunnel211
!
interface ATM3/1/0
atm mcpt-timers 1000 5000 10000
!
interface ATM3/1/0.9001 point-to-point
description m29a2-3 - ATM0/IMA0
no atm enable-ilmi-trap
pvc 9/34 l2transport
cell-packing 28 mcpt-timer 3
encapsulation aal0
xconnect 10.0.0.1 4090102001 pw-class
c76a3-1
|
pseudowire-class c76a3-2
encapsulation mpls
preferred-path interface Tunnel340
!
interface ATM3/1/0
atm mcpt-timers 1000 5000 10000
!
interface ATM3/1/0.9001 point-to-point
description m29a2-3 - ATM0/IMA0
no atm enable-ilmi-trap
pvc 9/34 l2transport
cell-packing 28 mcpt-timer 3
encapsulation aal0
xconnect 10.0.0.4 4090403001 pw-class
c76a3-2
|
Comments
•None.
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