Title: OSS Essentials
1OSS Essentials
- TTY, Automaatioverkkojen erityiskysymyksiä
- Leo Sutinen
23SS
- OSS Operating support system
- BSS Business support system
- MSS Marketing support system
3Contents
- Classification of Service Providers
- Industry issues of Support systems
- Market Drivers for Support Systems
- The Service Delivery Cycle
4Classification of Service Providers
- Due to the opportunities given by deregulation in
many countries. there are a number of new
entrants in the telecommunications services
industry. - Product and service portfolios need some fine
tuning in most cases because customers are faced
with overlapping offers from various service
providers. - Service creation and provisioning are becoming
more dynamic and provider-customer-interconnection
s are getting simpler by using Internet
technology.
5Classification of Service Providers ASP
(applications service provider)
- Emerging service provider who must combine
- Application
- Systems
- Network management
- Service level expectations are extremely high
the whole business of a customer may rely on this
provider.
6Classification of Service ProvidersCAP
(competitive access provider)
- Facilities-based or non-facilities-based
- Similar to the ILEC, but bas carefully selected
local loops for high-profit commercial customers
7Classification of Service ProvidersCLEC
(competitive local-exchange carrier)
- Smaller, flexible provider who owns little or no
telecommunications facilities (facilityless). - By offering excellent customer care and new
services, they try to build the support structure
step-by-step. - Their support systems are state-of-the-art,
lightweight, and less expensive to operate. - In certain cases, they use service bureaus for
billing and provisioning.
8Classification of Service ProvidersCSP (cable
service provider)
- Emerging service providers with offers for access
networks. - They still face technological challenges, which
can be overcome. - Support systems are practically nonexistent.
- In terms of support systems, they buy instead of
build occasionally, they use service bureaus for
billing and provisioning.
9Classification of Service ProvidersCSP (content
service provider)
- Emerging service providers who concentrate on the
value, Quality, and timeliness of content in
eCommerce environments. - They strongly co-operate with ISPs and ASPs.
10Classification of Service ProviderESP
(enterprise service provider)
- Emerging service provider from the enterprise
environment. - They offer services for a limited user community
with similar attributes to the provider. - They use and customize their existing support
systems that may not scale well.
11Classification of Service ProvidersICP
(integrated communications provider)
- Emerging provider with integrated services offer,
concentrating on next generation, high-speed data
and wireless services, in particular for
profitable business users. - Their acceptance in the market space is expected
to be high. - In terms of support systems, they buy instead of
build occasionally, they use service bureaus for
billing and provisioning. gtgtgt
12Classification of Service ProvidersICP
(integrated communications provider)
- gtgtgt They take advantage of the fact that
intranet, extranet, virtual private networks,
eCommerce, and multimedia applications require
more bandwidth than is available over traditional
circuit-switched voice networks
13Classification of Service ProvidersIEX
(interexchange carrier)
- Primarily responsible for long-distance services
with stepwise penetration of the local-exchange
area. - They can be both incumbent and competitive
providers with the result of the need for very
heterogeneous support systems.
14Classification of Service ProvidersILEC
(incumbent local-exchange carrier)
- Strong provider who owns a considerable amount of
telecommunications facilities and doesn't want to
give away this position easily. - Most likely, has a number of legacy support
systems with little interoperability and
integration in use. - The result is high operating costs.
15Classification of Service ProvidersISP (Internet
service provider)
- Wide variety of sizes of these providers.
- Their main goal is to provide Internet access to
business and private customers. - Major challenges include peering to each other
and to other carriers, managing quality, and
offering acceptable performance.
16Classification of Service ProvidersNSP (network
service provider)
- They are responsible for providing a highly
reliable networking infrastructure, consisting of
equipment and facilities. - Their responsibilities are usually limited to the
physical network, but element management systems
are usually included in their offers.
17Classification of Service ProvidersPTT (Post,
Telegraph, and Telephone)
- strong provider who owns a considerable amount of
telecommunications facilities and doesn't want to
give away this position easily. - Most likely, has a number of legacy support
systems with little interoperability and
integration in use. - The result is high operating costs. gtgtgt
18Classification of Service ProvidersPTT (Post,
Telegraph, and Telephone)
- gtgtgt It represents service providers prior to
liberalization of telecommunications services.
19Classification of Service ProvidersWSP (wireless
service provider)
- Carrier who provides
- cellular,
- personal, and
- mobile communications services.
20Industry issues of Support systemsConvergence
and telecom consolidation
- It accelerates the use of advanced support
systems. - Creates advantage for support systems targeting
multiple end markets. - It increases the complexity of telecom networks
and the demand for the integration of support
systems.
21Industry issues of Support systemsDeveloping
support systems markets
- Growth is dominated by new carrier adoptions and
incumbent upgrades. - Developing markets, such as data solutions, and
carrier interconnections, are likely to justify
the next wave of support systems spendings.
22Industry issues of Support systemsEmergence of
complex, multiplatform environments
- Reliability and scalability of large centralized
systems remain excellent. - Service providers incorporate a multiplatform
strategy augmenting existing investments in
legacy solutions with newer technologies targeted
at profitable customer market sectors.
23Industry issues of Support systemsEmphasis on
telecom systems integration
- Complex multiplatform, multivendor telecom
networks require substantial systems integration
for interoperability. - With multiple client server and legacy support
systems in place, integration capabilities of
vendors are in high demand.
24Industry issues of Support systemsGrowth of
support systems is tied to share-shift among
telecom end markets andcarriers
- The strongest near-term growth bas been achieved
by vendors targeting the - fast-growing telecom end markets,
- emerging local-exchange carriers (LECs),
- wireless carriers.
25Industry issues of Support systemsOutsourcing.
- Ongoing structural changes in the telecom
industry will place new requirements on support
systems. - In order to concentrate on customer management,
some back-office functions may be outsourced to
service bureaus. - These service bureaus might use support systems
from the same vendors, but they use them in a
shared fashion among multiple service providers.
26Industry issues of Support systemsProduct-based
vendor-driven solutions
- Carriers increasingly demand solutions rather
than raw technology and development kits for
custom-developed support systems solutions. - The advent of technology standards encourages the
use of best-of-breed vendor solutions.
27Industry issues of Support systemsUpgrade cycles
in support systems
- As a result of global deregulation, carrier
competition is driving the demand for new, more
efficient back-office solutions. - In addition to reducing operating expenses,
advanced support systems improve time-to-market
and often facilitate the introduction of new,
revenue-producing solutions.
28Market Drivers for Support Systems
- The market is changing very rapidly.
- Support systems should be positioned well and
should meet providers' expectations in a timely
fashion. - Principal market drivers are addressed in this
segment.
29Market Drivers for Support SystemsGrowth of the
GlobalTelecommunications Market
- Explosive telecom expansion driven by internal
growth and acquisition is forcing
telecommunications providers to assess the
productivity of their current support systems - Number of subscribers grows for existing
services new services are provisioned on
existing infrastructures and completely new
services on new infrastructures are deployed or
acquired. gtgtgt
30Market Drivers for Support SystemsGrowth of the
GlobalTelecommunications Market
- Several support system vendors have striven to
capitalize on this opportunity with solutions
that reduce complexity - These vendors do not usually replace existing
systems, but add functionality to accommodate new
services, such as...
31Market Drivers for Support SystemsGrowth of the
GlobalTelecommunications Market
- gtgtgt new services, such as
- - Internet, intranets, and extranet
- - Special data services on top of voice networks
- - Wireless services
- - Cable and video services
- - Voice and fax services on top of IP
- - Storage area networks
- - Web hosting
- - Content management
- - Support of ASPs
- - eCommerce services
32Market Drivers for Support SystemsIncreasing
Network Complexity
- As a result of customer expectations, the
time-to-market of new services is extremely
short. - New telecommunicatious services providers do not
have the time to build anew, but instead combine
existing and new infrastructures, such as copper,
fiber, and wireless. - They are deploying new services on the basis of a
mixture of infrastructures.
33Market Drivers for Support SystemsIncreasing
Network Complexity
- - Emerged technologies
- Voice networks, Integrated Services Digital
Network (ISDN), circuit switching, packet
switching, message switching, frame relay, Fast
Ethernet, Fast Token Ring, and Fiber Distributed
Data Interface/Copper Distributed Data Interface
(FDDI/ CDDI) - - Emerging technologies
- (Asynchronous Transfer Mode (ATM), mobile and
wireless, SMDS, SONET /SDH, cable, xDSL, and
Broadband ISDN (B-ISDN).
34Market Drivers for Support SystemsIncreasing
Network Complexity
- Each of these technologies bas its own support
system solutions. In a PSTN, the element that
should be managed are the switches themselves. - Multiple elements per subscriber in digital loop
carrier systems, digital cellular networks, or
hybrid fiber-coax systems may cause an explosion
in terms of managed elements. As a result, the
size of configuration databases have grown
exponentially over last 20 years.
35Market Drivers for Support SystemsIncreasing
Network Complexity
- Growth in the number of network elements bas been
accompanied by an increase in the complexity of
items to be managed. SONET /SDH, ATM, and digital
wireless are highly complex, with a high degree
of interdependence among network elements. - This makes service activation and fault isolation
a challenge. - Support systems must adapt to this new situation.
36Market Drivers for Support SystemsEmerging
standardsfor Telecommunications Providers
- When services are offered in combination, support
systems should be modified and connected to each
other. - This opens new business opportunities for support
systems vendors - The introduction of standards for support systems
is accelerating the demand for third-party
support systems.
37Market Drivers for Support SystemsEmerging
standards TMN
- The introduction of technology standards,
- Telecommunication Management Network (TMN)
- Distributed Common Object Model (DCOM
- Common Object Request Broker Architecture (CORBA)
- Telecommunication Information Network
Architecture (TINA) - Web-Based Enterprise Management (WBEM)
- have begun to gain critical support by new
support systems vendors.
38Market Drivers for Support SystemsEmerging
standards TMN
- Telecommunication Management Network (TMN) is a
special network that is implemented to help
manage the telecommunication network of the
service provider. - It interfaces to one or more individual networks
at several points in order to exchange
information. It is logically separate from the
networks it manages, and may be physically
separate as well.
39Market Drivers for Support SystemsEmerging
standards TMN
- Telecommunication Management Network is an
extension of the Open Systems Interconnection
(OSI) standardization process. - It attempts to standardize some of the
functionality and many of the interfaces of the
managed networks. - When fully implemented, the result will be a
higher level of integration. - TMN is usually described by three architectures
40Market Drivers for Support SystemsEmerging
standards TMN
- 1 The functional architecture
- describes the appropriate distribution of
functionality within TMN. - 2 The information architecture
- gives the rationale for the application of OSI
systems management principles to the TMN
principles. - 3 The physical architecture
- describes interfaces that can actually be
implemented together with examples of physical
components that make up the TMN.
41Market Drivers for Support SystemsEmerging
standards TMN
- Telecommunication Management Network distributes
management responsibilities into several layers,
such as - business management layer (BML),
- service management layer (SML),
- network management layer (NML),
- element management layer (EML),
- and into the actual network element layer (NEL).
42Market Drivers for Support SystemsEmerging
standards DCOM
- Distributed Common Object Model (OCOM) is the
heart of Microsoft's ActiveOSS suite. - DCOM is an integration framework infrastructure
designed to facilitate communication between
software components operating on the same host or
with DCOM on multiple-networked hosts. - It was originally developed to create
interoperability between components.
43Market Drivers for Support SystemsEmerging
standards DCOM
- ActiveOSS acts as a centralized management and
translation point for an OSS network. - Conceptually, applications ride on top of the
framework, but communicate through it. - The common model allows the various applications
to communicate in a uniform manner within the
framework or across multiple-networked frameworks
44Market Drivers for Support SystemsEmerging
standards
- The framework is intended to create uniformity
among application services without any
modifications to source code. - Application services are built into and managed
by the framework. The overall architecture also
incorporates the Smart TMN business process model
and related work by TINA.
45Market Drivers for Support SystemsEmerging
standards CORBA
- Common Object Request Broker Architecture (CORBA)
is a generic communication framework to connect
various network management applications. - The object request broker (ORB) is the
coordinator between distributed objects. The
broker receives messages, inquiries, and results
from objects, and routes them to the right
destination.
46Market Drivers for Support SystemsEmerging
standards CORBA
- If the objects are in a heterogeneous
environment, multiple brokers are required. - They will talk to each other in the future by a
new protocol based on Transmission Control
Protocol/Internet Protocol (TCP/IP).
47Market Drivers for Support SystemsEmerging
standards CORBA
- There is no information model available no
operations are predefined for objects. - But an object does exist containing all the
necessary interfaces to the object request
broker. For the description, the Interface
Definition Language (IDL) is being used. - There are no detailed management information
bases (MIBs) for objects.
48Market Drivers for Support SystemsEmerging
standards CORBA
- The functional model consists of the Object
Services Architecture. - It delivers the framework for defining objects,
services, and functions. - Examples of services are instantiation, naming,
storing objects' attributes, and the
distribution/receipt of events and notification.
49Market Drivers for Support SystemsEmerging
standards TINA
- Telecommunications Information Networking
Architecture (TINA) is is actually a concept
integrator from intelligent network (IN), TMN,
open distributed processing (ODP) from ISO and
CORBA from object management group (OMG).
50Market Drivers for Support SystemsEmerging
standards TINA
- The core is OSI-based network management,
expanded by the layered structure of TMN. - The emphasis with TINA is not on the management
of network elements, but on the network and
services layers. - TINA is going to be standardized by a consortium
consisting of telecommunications suppliers and
computer and software vendors.
51Market Drivers for Support SystemsEmerging
standards WBEM
- Web-Based Enterprise Management (WBEM) is a joint
initiative of many manufacturers led by Compaq,
Microsoft, and Cisco. - The initial announcement called for defining the
following specifications
52Market Drivers for Support SystemsEmerging
standards WBEM
- HyperMedia Management Schema (HMMS). It was to be
further defined by the Desktop Management Task
Force (DMTF). - HyperMedia Object Manager (HMOM). C reference
implementation and specification, defined by
Microsoft and Compaq, to be placed in the public
domain.
53Market Drivers for Support SystemsEmerging
standards WBEM
- HyperMedia Management Protocol (HMMP) A
communication protocol embodying HMMS. running
over HTTP, and with interfaces to SNMP and DMI. - Common Information Model (CIM). It is the basis
of the information exchange between various
management applications.
54Market Drivers for Support SystemsEmerging
standards WBEM
- Web-Based Enterprise Management (WBEM) is helpful
to unify and simplify network management. - The combination of CIM and eXtensible Markup
Language (XML) is going to set the basics of a
new standard that significantly facilitates the
interoperability between various support,
documentation, and management systems.
55Market Drivers for Support SystemsDeregulation
and Privatization
- Telecommunications service competition began in
the 1980s in the USA led by MCI with 3SSs playing
a key role. - Under the pressure of the European Commission
(EC), Europe is in the process of deregulation
and privatization.
56Market Drivers for Support SystemsDeregulation
and Privatization
- Key issues are
- Local Number Portability (LNP) It allows
customers to retain their telephone numbers even
if they change service providers. - Customers also typically want to retain access to
advanced features they have come to expect from
an intelligent network.
57Market Drivers for Support SystemsDeregulation
and Privatization
- Key issues are
- Extranets connecting support systems of ILECs and
CLECs. ILECs are required to provide access to
information on five classes of support systems.
They are preordering, ordering, provisioning,
repair, and maintenance. This is now the
principal focus of local and access service
providers.
58Market Drivers for Support SystemsDeregulation
and Privatization
- Key issues are
- Directory services. Real-time service processing
requires additional customer-related data. The
expanded directory role includes end-user
authorization and authentication. - Directory enabled networks (DENs) are tackling
the standardization of directory information.
59Market Drivers for Support SystemsDeregulation
and Privatization
- Innovation and reengineering on behalf of the
incumbent carriers show a trend toward - Better customer care. Based on call detail record
(CDR) and other resource utilization-related
data, unsophisticated customer analysis can be
accomplished. It includes discovering trends in
customer behavior and traffic patterns, etc.
60Market Drivers for Support SystemsDeregulation
and Privatization
- Convergent billing.
- The customer may expect to receive one bill for
all services, such as voice, data, video, and
Internet. The minimal requirement is to receive
multiple bills with electronic staples.
61Market Drivers for Support SystemsDeregulation
and Privatization
- Rapid provisioning of new services. Based on
additional support systems, provisioning can be
expedited by better interfaces and more accurate
data.
62Market Drivers for Support SystemsDeregulation
and Privatization
- Service differentiation. Still using the same
infrastructures, new services can be created and
deployed. By carefully defining the value-added
nature, they may be considered by customers as
differentiators
63Market Drivers for Support SystemsDeregulation
and Privatization
- Offering new services, such as Internet access,
xDSL, VPN, and VoIP. Also, incumbent service
providers are expected to react rapidly to new
communication needs, including offering Internet
access for reasonable money, the deployment of
xDSL, digital subscriber line, virtual private
networks (VPNs), and voice over IPs (VoIP).
64Market Drivers for Support SystemsCommunication
Convergence
- Advanced technology, coupled with deregulation,
is driving communications convergence. - Customers prefer to get all types of services,
such as long-distance and local voice,
data/Internet cable/video, and wireless access
from the same service provider. - Deregulation meant to encourage competition
through the proliferation of new entrants.
65Market Drivers for Support SystemsCustomer
Orientation
- Competition is driving telecommunications service
providers to emphasize customer management. - Driven by global competition. carriers are likely
to focus on improving the total value of their
services-quality, support, and price-as a means
to retain customers.
66Market Drivers for Support SystemsCustomer
Orientation
- Many of these improvements will come from
advanced support systems - Besides improving the customer interface (e.g..
offering Web access). granular data available
with new support systems can be utilized to
retain key customers and reduce the amount of
customer churn. - Further differentiation is expected High-margin
customers may receive special treatment.
67Market Drivers for Support SystemsASP Model
- There is an industry trend that shows a number of
of companies teaming up in an attempt to meet the
market demand for streamline OSS applications. - OSS APSs pull together applications rather than
create their own, and more companies are entering
this space. - Their success depends on their value to the
network service providers and on how their
solutions integrate across each OSS application.
68Market Drivers for Support SystemsASP Model
- BusinessNow from NetworkOSS is a good example of
an ASP model. - An unbiased collection of OSS applications from a
number of suppliers enables NetworkOSS to form
partnerships with its customers. - The buy or build dilemma for service providers.
69The Service Delivery Cycle
- The telecommunications industry today is
experiencing a number of changes and challenges.
Deregulation, new services, new technologies.
reengineering business processes and acquisitions
are just a few that demand attention. - Also, multiple concepts such as service
differentiation, quality of service,
time-to-market, customer care. return on
investment, and total cost of ownership request
attention.
70The Service Delivery Cycle
- Quality of processes, automation of processes,
and integration of support and management tools
may mean the difference between business success
and failure. - Business processes may be organized in several
ways,such as - Customer care, service development, order
processing, provisioning, network and systems
management,and billing - Fulfillment, service assurance, and billing.
71Customer Care and Billing ProcessThe customer
interface management process
- These are the processes of directly interacting
with customers and translating customer requests
and inquiries into appropriate events. - Process logs customer contacts, and tracks the
status to completion.
72Customer Care and Billing ProcessThe sales
process
- This process encompasses learning about the needs
of each customer. - It includes working to create a match between the
customer's expectations and the service
provider's ability to deliver. - Depending on the service provider process, it can
be purely selling or can include various levels
of support.
73Customer Care and Billing ProcessThe sales
process
- The sales process may include preorder work and
interfaces. - The aim is to sell the correct service to suit
the customer's need and to set appropriate
expectations with the customer. - Service level agreement (SLA) negotiation,
request for proposal - (RFP) management, and negotiation are led from
this process.
74Customer Care and Billing ProcessThe problem
handling process
- Responsible to receive service complaints from
customers, resolve them to the customer's
satisfaction, and provide meaningful status on
repair or restoration activity. - Responsible to be aware of any service-affecting
problems, including notifying customers in the
event of a disruption. - The aim is to have problems proactively
identified and communicated to the customer, and
to resolve.
75Customer Care and Billing ProcessThe customef
QoS management process
- This process encompasses monitoring,
managing,reporting quality of service (QoS) as
defined in service descriptions, SLAs, and other
service-related document. - It includes network performance, but also
performance across all service parameters (e.g.,
orders completion on time). - Outputs of this process are standard (predefined)
and exception reports.
76Customer Care and Billing ProcessThe call rating
and discounting process
- The process encompasses the following functional
areas - Applying the correct rating rules to usage data a
customer-by-customer basis - Applying any discount agreed
- Applying promotional discount and charges
- Applying outage credits
- Applying rebates ( SLAs were not met)
- Resolving unidentified usage(predefined) and
exception reports.
77Customer Care and Billing ProcessThe invoicing
and collection process
- This process encompasses sending invoices to
customers and performing collections. - The aim is to provide a correct bill and, if
there is a billing problem, resolve it quickly.
78Customer Care and Billing ProcessThe consulting
and supporting process
- The collaboration between providers and customers
includes establishing a special team of
consultants for the customer, arranging periodic
status and planning meetings, and defining the
interfaces between provider and customer.
79Order Processing and provisioning ProcessThe
inventory management process
- This process encompasses physical equipment and
the administration of this equipment - installation and acceptance of equipment, with
the physical configuration of the network, and
handling of spare parts and the repair process. - Software upgrades, implementing IP-based
services, the number of managed objects is going
to grow. - Physical assets also include servers, access
servers, gateways, gatekeepers, routers, and new
connections.
80Order Processing and provisioning ProcessThe
service creation, planning and development process
- This process encompasses the following functional
areas - Designing technical capability to meet specified
market need at desired cost - Ensuring that the service (product) can be
properly installed, monitored, controlled, and
billed - Initiating appropriate process and methods
modifications, as well as initiating changes to
levels of operations personnel and training
required
81Order Processing and provisioning ProcessThe
service creation, planning and development process
- Initiating any modifications to the underlying
network or information systems to support the
requirements - Performing preservice testing
- Ensuring that sufficient capacity is available to
meet forecasted sales - Developing IP-based services.
82Order Processing and provisioning ProcessThe
network planning and development process
- This process encompasses development and
acceptance of strategy, description of standard
network configurations for operational use, and
definition of rules for network planning,
installation, and maintenance. - It is about the planning of boundary nodes,
routes, and capacity.
83Order Processing and provisioning ProcessThe
network planning and development process
- Considering IP-based services, multiple
- alternatives for the implementation are
available. - Popular solutions are
- IP over ATM
- IP over frame relay
- IP over SONET/SDH
84Order Processing and provisioning ProcessThe
network planning and development process
- Special modelling tools are very useful to
predict future performance under various load
conditions. - These tools utilize what-if scenarios to emulate
performance under various load conditions. - These tools depend today on the protocols used.
Many providers work with multiple tools there
are practically different tools for each service.
85Order Processing and provisioning ProcessThe
network planning and development process
- This process also deals with designing the
network capability to meet a specified service
need at the desired cost and for ensuring that
the network can be properly installed, monitored,
controlled, and billed. - The process is also responsible for ensuring that
enough network capacity will be available to meet
the forecasted demand.
86Order Processing and provisioning ProcessThe
network provisioning process
- This process encompasses the configuration of the
network to ensure that network capacity is ready
for provisioning of services. - Provisioning IP-based services involves a large
number of nodes and servers that are completely
unknown in a voice environment. - Provisioning requires experienced subject matter
experts.
87Order Processing and provisioning ProcessThe
service ordering process
- Includes all the functions accepting a customer's
order for service, tracking the progress of the
order, and notifyig the customer when the order
is complete. - Orders can include new,change, and disconnect
orders for all or part of a customer's service. - The aim is to order the service the customer
requested, and keep the customer informed.
88Order Processing and provisioning ProcessThe
service configuration process
- This process encompasses the installation and/or
configuration of services for specific customers,
including the installation/ configuration of
customer premises equipment. - Offering IP-based services, additional functions
must be considered. In particular, firewalls,
application services such as e-mail, Web hosting,
and their configurations are important.
89Order Processing and provisioning ProcessThe
service configuration process
- Also the setting of parameters to support QoS and
SLA requirements is important. - The more that can be automated, the better
service providers do in the competitive market.
90Order Processing and provisioning ProcessThe
security management process
- Due to factors such as opening networks,
connecting partners, and using a public domain
such as the Internet security risks increase
considerably. - Virtual private networks (VPNs) are one of the
possible answers to combining existing
infrastructure with acceptable protection. - Security management procedures are identical or
at least very similar.
91Order Processing and provisioning ProcessThe
security manamagement process
- Security management is in charge of protecting
all systems solutions. - Process includes a planning and controlling
function - In particular, three basic threats are
considered - (1) loss of availability of services,
- (2) loss of integrity, and
- (3) loss of privacy.
92Network Operational Management ProcessesThe
service problem resolution process
- Process encompasses isolating the root cause of
service-affecting and non-service-affecting
failures and acting to resolve them. Typically,
failures affect multiple customers. Actions may
include immediate reconfiguration or other
corrective actions. - Aim is to understand the causes impacting service
performance and to implement immediate fixes or
initiate quality improvement efforts.
93Network Operational Management ProcessesThe
service quality management process
- This process supports monitoring service or
product quality on a service class basis in order
to determine whether - Service levels are being met consistently
- There are any general problems with the service
or product - The sale and use of the service is tracking to
forecasts
94Network Operational Management ProcessesThe
service quality management process
- This process also encompasses taking appropriate
action to keep service levels within agreed
targets for each service class and to either keep
ahead of demand or alert the sales process to
slow sales. - The aim is effective service-specific monitoring
and to manage service levels to meet SLA
commitments and standard commitments for the
specific service.
95Network Operational Management ProcessesThe
service quality management process
- There have been quality metrics for voice
services for a long time. - For IP-based services, the term quality is
relatively new. - Philosophy behind IP-based services is to offer
best-effort quality depending on the capacity
constraints of networking infrastructures-but
there are no guarantees even for that.
96Network Operational Management ProcessesThe
service quality management process
- There are two alternatives with IP-based
services - - Integrated Services (IntServ) this alternative
supports RSVP and, as a result, bandwidth is
guaranteed for application network ingress and
egress points. - - Differentiated Services (DiffServ) This
alternative analyzes the type of service (ToS)
header of IPv4 and assigns priorities.
97Network Operational Management ProcessesThe
network maintenance and restoration process
- This process encompasses maintaining the
operational quality of the network in accordance
with required network performance goals. - Network maintenance activities can be
- preventative-such as scheduled routine
maintenance or - or corrective. Corrective maintenance can be in
response to faults or to indications that
problems may be developing (proactive).
98Network Operational Management ProcessesThe
network maintenance and restoration process
- Supervisory functions should be extended for
IP-based services- In most cases, distributed
monitoring capabilities must be implemented. - Voice networks use Transaction Language 1 (TL 1),
Common Management Information Protocol (CMIP),
and TMN as the basis of supervising status and
resource utilization.
99Network Operational Management ProcessesThe
network maintenance and restoration process
- The IP world brings Simple Network Management
Protocol (SNMP) and Remote Monitoring (RMON) into
the supervisory scenario. - Powerful filters and correlation engines are
required for the reduction of the total amount of
data generated by the supervisory function.
100Order Processing and provisioning ProcessThe
inventory management process
- This process encompasses physical equipment and
the administration of this equipment - installation and acceptance of equipment, with
the physical configuration of the network, and
handling of spare parts and the repair process. - Software upgrades, implementing IP-based
services, the number of managed objects is going
to grow. - Physical assets also include servers, access
servers, gateways, gatekeepers, routers, and new
connections.
101Order Processing and provisioning ProcessClosing
(finally!)
- Below these business processes, there are many
support, documentation, and management systems
most of them are legacy applications. - Some of them are best-of-breed. and just a few of
them are integrated with each other.