the network edge wiki
The network layer Addressing and routing
Ngày tải lên :
17/09/2012, 09:13
... agent
will then perform the final delivery to the client.
( )
If the ’giaddr’ field is set to 0.0.0.0, then the client resides on
one of the same networks as the BOOTP server.
5
course NAK’ed and the ... agent,
modifies the destination address indicating the destination address field the
address of the care-of-address.
c) If the user emits a packet, it must use its basic address or the address that the
network ... automating the choice of the server in allocating them to each
one the same Anycast address. The availability represents (number of users connected,
the memory available, the load CPU…). What will be the...
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Securing the Network Infrastructure
Ngày tải lên :
17/09/2012, 10:43
... compromising the
information
–
A worm or virus could be introduced to the media,
potentially damaging the stored information and
infecting the network
Hardening Network Security Devices
ã
The final ... activity
ã
Network- based IDS monitors all network traffic instead
of only the activity on a computer
–
Typically located just behind the firewall
ã
Other IDS systems are based on behavior:
Watch network ... attached to a network
(also called a client)
–
Connected to a LAN and shares resources with other
workstations and network equipment
–
Can be used independently of the network and can
have their...
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Outsourcing the Network II - Green IT and SAN
Ngày tải lên :
17/09/2012, 10:43
... giữa sáng kiến và
hiệu quả của nó
SAN solution
Hp nht vic lu tr
ã
SAN (Storage Area Network) v NAS (Network Attached Storage)
là hai cách để tổ chức lại một hệ thống vào trong một nguồn lưu ... được gắng liền với hệ thống(chẳng hạn như các máy
chủ kết nối sử dụng LAN hoặc WAN) đã phỏt trin theo cp s nhõn nhng nm
gn õy
ã
Qun lý a nn(nh Windows NT đ, UNIX, Novell NetWare, VMS v phn
mm ... máy chủ
thông qua một card adapter, và thiết bị lưu trữ chỉ phục vụ cho mt
server duy nht
ã
NAS (network attached storage): l mt dng mạng LAN cơ bản
chạy trên máy chủ file server sử dụng giao...
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The Email Edge
Ngày tải lên :
06/11/2012, 15:51
...
One of the joys of the Internet is the culture of knowledge sharing. In that tradition, a
number of people contributed their knowledge to this booklet. Chief among them are
the members of the ... (Extensions are the three letter
codes that appear after the period in a file name.) These types of extensions
designate program files, which have the capacity to carry viruses.
The Email Edge: 101 ... Preview Pane to
toggle the Preview Pane off. Under the Tools menu, Options, Read tab, turn off
the option for automatically downloading messages in the preview pane.
The Email Edge: 101 Tips
...
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The Network Switching Subsystem
Ngày tải lên :
19/10/2013, 03:20
... hierarchy.
4
The Network Switching Subsystem
The NSS plays the central part in every mobile network. While the BSS pro-
vides the radio access for the MS, the various network elements within the NSS
assume ... deficiencies in the protocol between the MSC and
the VLR forced the manufacturers to implement proprietary solutions. That
is the reason the interface between the MSC and the VLR, the B-interface, ... illustrates another difference between
the HLR and the VLR. The VLR is assigned a limited geographical area, while
the HLR deals with tasks that are independent of a subscriber’s location. The
The Network...
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The Network Press - Encyclopedia of Networking - Second Edition
Ngày tải lên :
22/10/2013, 15:15
... its LSP, the
new version is broadcast and replaces
the older versions at each other router.
The scheme used to distribute the LSP
greatly influences the performance of
the routers. These types ... to the 100BaseVG variant (now
officially, IEEE 802.12)—which is the other
major 100 Mbps Ethernet available.
The main differences between fast (100
Mbps) Ethernet and standard (10 Mbps)
Ethernet ... Two nodes of a
100BaseT4 network can be no further
apart than 205 meters—regardless of
whether the nodes are next to each
other.
The following variants of 100BaseT
Ethernet have been defined:
100BaseFX:...
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Look both ways before crossing the network
Ngày tải lên :
22/10/2013, 18:15
... each for the trans-
mit and receive circuits. Whenever a con-
nector is cleaned or new circuits turned
up, there is the potential for damaging dust
or dirt to enter other connectors within the
fiber ... without exposing the
other fiber to the risk of breaking and tak-
ing down service.
Many transmission equipment vendors
build in performance monitoring functions
into their equipment. There is a mistaken
notion ... alarms
is done at the path terminating points with-
in long haul or metro routes, making it
difficult to locate the exact point of the
problem. VAMs located at strategic points
in the network simplify...
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Tài liệu Look both ways before crossing the network doc
Ngày tải lên :
10/12/2013, 16:15
... traffic. The pattern
is carried on the network or circuit
under test, then test equipment at the
receive point determines whether the
transmission is successful (without
errors). At this point, the ... choosing a VAM is the access to
the connectors. Dirty connectors are
the highest cause of poor performance
and the most likely failure points in the
network. Thus, periodic cleaning of
the connectors ... and
production of the coupler components,
which are mounted within the VAM
and provide the means for splitting
signals with low loss and high reliabil-
ity. The coupler devices used in the
network must...
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Tài liệu LoopStar® 750 Cost-Effective Ethernet/TDM Services at the Metro Edge pptx
Ngày tải lên :
10/12/2013, 19:15
... Ethernet/TDM Services at the Metro Edge
With customers demanding higher speed Ethernet services at lower price points, carriers are
looking for ways to offer new services while maintaining the ... to extend the life of current infrastructures and
be able to migrate to the next generation of networks at the appropriate time. ADCs LoopStar
đ
700 product family addresses all of these requirements ... 1
LoopStar
đ
750
Cost-Effective Ethernet/TDM Services at the Metro Edge
Innovation for Next Generation Ethernet and IP Services
Based on a flexible, IP-centric architecture, the LoopStar 750 uses programmable...
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Tài liệu Chapter 2 - Communicating over the Network CCNA Exploration 4.0 docx
Ngày tải lên :
12/12/2013, 14:15
... Devices and their Role on the Network
ã Intermediary devices to provide connectivity and to work behind the scenes to
ensure that data flows across the network.
ã These devices connect the individual ...
over the Network
CCNA Exploration 4.0CCNA Exploration 4.0
End Devices and their Role on the Network
ã The network devices that people are most familiar with are called end devices.
These ... set of rules for all
networks.
ã Using this research, the ISO created a network model that helps vendors
create networks that are compatible with other networks.
ã The Open System Interconnection...
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Tài liệu Reduced Bend Radius Fiber into the Network docx
Ngày tải lên :
21/12/2013, 07:17
... from one end of the fiber to another
(see Figure 1). By improving the bend radius of optical
fiber, light entering the core is effectively reflected by the
cladding back into the core. Instead ... refraction than the core, causing light to stay
within this core.
To achieve tighter bend radii, some constructions change
the Mode Field Diameter (MFD) the area across the core
of the fiber that ... just not
to the extent of regular fiber. There is still a mechanical
limit on how tightly any optical fiber
can be routed before the structural
integrity of the glass is violated.
The assumptions...
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Tài liệu Chapter 6 - Addressing the Network – IPv4 pdf
Ngày tải lên :
22/12/2013, 13:17
... - Website: www.bkacad.com 28
• Use the subnet mask and ANDing process to extract
the network address from the IP address.
Network portion and the role of the subnet mask
Học viện mạng Bách ... to networks by ISPs and
within networks by administrators
ã
Hc vin mng Bỏch khoa - Website: www.bkacad.com 2
ã Determine the network portion of the host address and explain
the role of the ... Addressing
the Network – IPv4
CCNA Exploration version 4.0CCNA Exploration version 4.0
Assigning Addresses
ã Describe the process for requesting IPv4 public
addresses, the role ISPs play in the process,...
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Tài liệu Marketing in the network economy pdf
Ngày tải lên :
22/12/2013, 21:16
... Reproduced with permission of the copyright owner. Further reproduction prohibited without permission.
Reproduced with permission of the copyright owner. Further reproduction prohibited without ... permission.
Reproduced with permission of the copyright owner. Further reproduction prohibited without permission.
Reproduced with permission of the copyright owner. Further reproduction prohibited without ... permission.
Reproduced with permission of the copyright owner. Further reproduction prohibited without permission.
Reproduced with permission of the copyright owner. Further reproduction prohibited without...
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Tài liệu Wiring the Network docx
Ngày tải lên :
21/01/2014, 04:20
... reliable network. (Most people wind up hiding the hub in a closet, and running the
wiring either along the edges of the room or inside the walls.) You can buy Ethernet
cables, plus the hub, ...
The Network window opens, showing the icons for all the computers on the
local network. Double-click the one you want, enter the account password, if
necessary, and you're in.
Whether ... network
and Internet connection.
If you think about it, the AirPort system is a lot like a cordless phone, where the base
station is, well, the base station, and the Mac is the handset.
The...
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Tài liệu Is It the Network? Solving VoIP Problems on a Wireless LAN ppt
Ngày tải lên :
24/01/2014, 09:20
... While WMM focuses on improving the network,
WMM Power Save was created with the goal of
improving the performance of devices that access the network.
All wireless network interfaces require processing ... 802.1X/EAP authentication (fast) while maintaining a PMK
that ensures that the station is allowed on the network (secure).
The problem with PMK caching is that the initial association to each AP on the ... forsaken by the designers of 802.11i FSR.
The second way of limiting server-based authentications is preauthentication. Preauthentication is an optional
part of the 802.11i amendment, so there are...
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