Transcript Network Infrastructure

Outline..
• Introduction
• Network Infrastructure
• Network topology
• Cabling and Physical Connectivity
• Types of Applications within the network
• Wire and Wireless Communication and Access Points
• Maintenance and Troubleshooting
• Monitoring Network Performance
• Network Strength And Weaknesses
• Conclusion
Introduction
• Schlumberger Limited is the world's largest oilfield services
company. Schlumberger employs over 115,000 people of
more than 140 nationalities working in approximately 85
countries. Its principal offices are in Houston, Paris, and The
Hague. Schlumberger Limited (Schlumberger N.V.) provides
a range of products and services from exploration through
production. The Company is a supplier of technology,
integrated project management and information solutions to
customers in the oil and gas industry globally.
Network Infrastructure:
• A network infrastructure is an
interconnected group of computer systems
linked by the various parts of
telecommunication architecture .
Servers:
• Computer or device on a network that
manages the network resources.
- Schlumberger Company uses HP servers,
which is group of physical servers
clustered together, and all those separate
servers’ work together to maximize the
availability of applications and services.
• - Schlumberger have different types of
servers:
• 1-Application server:
• 2-Database server:
• 3-Mail server:
• 4- Member server:
• The main infrastructures that the company
implemented to run the IT services include:
• Active directory:
• Active Directory (AD) is a directory service created by Microsoft
for Windows domain networks. It is included in most Windows
Server operating systems. Active Directory in Schlumberger
provides a central location for network administration and
security. Server computers in the company that run Active
Directory are called domain controllers. An AD domain
controller authenticates and authorizes all users and computers
in a Windows domain type network—assigning and enforcing
security policies for all computers and installing or updating
software.
• Connectivity devices
• Connectivity devices are devices used to make physical network
connections.
• Schlumberger uses multilayer switch for connecting the network
equipment all together, which is basically used to speed up the
routing performance.
• Schlumberger uses CISCO routers:
• This type of router the company uses is connected to MPLS network,
which hosted by (STC) Internet service provider (ISP), which they
can access their WAN through.
• The idea behind the MPLS technology is that it directs data from
one network node to the next based on short path labels rather than
long network addresses, avoiding complex lookups in a routing
table. The labels identify virtual links (paths) between distant nodes
rather than endpoints. MPLS can encapsulate packets of various
network protocols.
• Schlumberger rely on various types of gateways to provide protection to
their network services such as: LAN gateway, WAN gateway, and Internet
gateway.
• LAN gateway
• Schlumberger LAN’s gateway allows the traffic to move from one LAN with
a subnet to another LAN with different subnet.
• It is also allow the clients to access information securely from the server.
•
• WAN Gateway:
•
Schlumberger uses a router as a gateway to their WAN. Which is
connected to their MPLs in order to manage the traffic securely with high
speed from the local networks to the wide ones.
•
• Internet Gateway:
•
Schlumberger use this technology to secure and control their data while
transmitting or moving. They do install firewall in a router as a gateway to
the Internet it drops packets data according to their source and destination
address.
Network Topology
Schlumberger uses star topology as a connection for their
circuit. Where all computers connected to a central device as
point-to-point connection, not like bus topology that has no
central device. Hub, switch or router links the computer to
the central device. Data has to get through the central device
first then to the estimated destiny. The company has that
type of topology for it advantages.
Cabling and Physical Connectivity:
Cable is the medium through which information usually moves from one
network device to another. There are different types of cable, which are
commonly used with LANs. The type of cable chosen for a network is
related to the network's topology, protocol, and size.
Schlumberger Company use fiber optic cable which consists of a center
glass core surrounded by several layers of protective materials. It
transmits light rather than electronic signals eliminating the problem of
electrical interference. It has also made it the standard for connecting
networks between buildings, due to its immunity to the effects of
moisture and lighting.
There are two common types of fiber cables single mode and
multimode.
• Both cables provide high bandwidth at high speeds , Single mode can provide
more distance, but it is more expensive.
• Schlumberger use cat 6 cable which is a high speed gigabit Ethernet networks
and contains four pairs of copper wire. CAT6 supports Gigabit Ethernet speeds up
to 1 gigabit per second (Gbps) and supports communications at more than twice
the speed ofCAT5e, the other popular standard for Gigabit Ethernet cabling.
Types of Applications used in Schlumberger:
Email- application:
Microsoft Outlook 2007(client):
Microsoft Exchange 2007 (Server):
Document management server:
Wire, Wireless Communication and Access
Points:
*Wired Communications:
Schlumberger Company use a type of wired
communication which is called Wired drillpipe
(WDP).
• It allows for a several orders of magnitude
increase in data transmission rates.
• It provides a two – way communication between
downhole sensors and the surface at a very high
speed.
*Wireless Communications:
Schlumberger Company contains a wireless
communication service called ERF Wireless service that
will help improve their wireless communications. The
company will be provided with 1.5Mbps data
communications by using Wireless and WiMAX
communications.
*Access Points:
For the Access Points Schlumberger Company had
physically installed about 12 Access Points in the whole
building.
Maintenance and Troubleshooting:
Backup Systems:
•Schlumberger Company uses a type of backup software
called TLM (Total Lifecycle Management). TLM software
is provided for the company users, which will help
have a full daily backup of their files and data.
• The company also uses another backup tool
called CNB (Connected Network Backup) an
expensive but efficient tool for backing up the
clients on the company’s network. It also
provide daily backup.
• Schlumberger Company has a hardware
backup in order to restore their data called
Tape Libraries or Autoloaders (server backup).
It is the most common approach for easing
the burden of backup and restore.
Disaster recovery
• Cold backup is known as an offline backup, it is an
inaccessible database. The important data are not changeable
no new data to add or to remove, to prevent the dangerous
stages of security breaching. Users cannot use the database if
it is backed up already, it considered save and inexpensive
counted as an advantages to be used as a type in
Schlumberger.
•
• Warm back up it is a space that allocated in the used
database hardware. It is hard
• to set and it mostly depends on the space of the data to
restore.
•
• Hot back up has an accessible database while it’s backing
up. In which it uses
• techniques to avoid data breaching when the database is in
use. But it has higher price
• than the cold and warm back up.
Network Security and Monitoring Performance
Security:
Some of rules that the company follow to secure their employees:
1. Protect your computer
2. Handled client and SLB data properly.
3. Protect your password.
4. Use startup and screensaver password.
5. Ensure that antivirus is current.
The company secures their system by:
• System Center Configuration Manager, SCCM : software management
that allow users to manage a large number of Windows computers.
• Big fix: which is a utility provides automated solutions to bug and virus
problems over the Internet, without compromising your privacy.
• McAfee ePolicy Orchestrator (ePO): is widely acknowledged as the most
advanced and scalable security management software in the industry.
Monitoring
Schlumberger use Intrusion Detection Systems (IDS) which are like a burglar
alarm for the computer network. They detect unauthorized access attempts. They
are the first line of defense for your computer systems. An intrusion detection
system (IDS) monitors network traffic and monitors for suspicious activity and
alerts the system or network administrator. In some cases the IDS may also
respond to anomalous or malicious traffic by taking action such as blocking the
user or source IP address from accessing the network. So the goal of an Intrusion
Detection System (IDS) is to monitor the effectiveness of control systems by
monitoring for evidence of attacks. An intrusion detection system is often
necessary to help control the risks associated with common vulnerabilities such as
e-mail borne viruses, infected laptops and human factors.
LAN monitoring tool:
Network monitoring tool that helps you to ensure that your computer systems are
running smoothly and that no outages occur. Network monitoring is also important to
increase the efficiency of your network by knowing bandwidth and resource
consumption.
WAN monitoring tool:
Multiprotocol Label Switching (MPLS) which is enables Enterprises and Service
Providers to build next-generation intelligent networks So they use it as a backup if one
of them collapse they can use the other one.
In addition to monitor Schlumberger net the company use Netcool which is a web
server application that processes network alert information and presents the data
output to users so that they can monitor events in their Netcool environment.
Network Strengths and Weaknesses:
Network Strengths:
• The Wired drill pipe (WDP) will improve the wired
communication by having the ability to transmit data at a
rate of 57,000 bits per second, with 1 Megabit/second
rates.
• ERF Wireless has expertise in wireless data security, this
way the company improve their data security
Network Strengths (continue):
• CNB backup is that reduces backup time, storage space,
and bandwidth usage.
•TLM software keeps ten previous versions of each file and
holds on to deleted files for 30 days.
• Using a tape library or autoloader can provide s a high
scalability, centralization of backup and a high
performance backup
Network Weaknesses:
•The oilfields use satellite communications to send high
bandwidth data, which is very expensive, and have a high
latency.
• The company uses a 1 GB LAN network it is now
considered a weakness because the market is
providing an expensive 10GB LAN network.
• The CNB backup is very is very expensive.
Network Weaknesses (continue):
• The tape library or autoloader can cause a heavy load on
the LAN or WAN that will affect the network
performance, and it is very costly.
Conclusion
•
This report prepared for Network management course,
which is discussing many things about the network in
Schlumberger Company according to what we noticed
and watched in our visit to the company. This report
basically covered the basics of the network, the
components of the network like: the infrastructure, the
topology, the cabling, the transmission, the network
applications, wireless communication and monitoring
performance of the network and much more details with
analyzing and clarifying the strengths and weaknesses
based on the advantages and disadvantages of using each
technology or device.