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... the backup switch. In
contrast, a larger unit can switch to redundant features automatically. As always,
consider such trade-offs carefully for your particular company and its needs.
69
Chapter ... build a network
using smaller 24-port switches. You can simply purchase an extra 24-port unit as
a hot-swap backup (a backup unit that can be quickly swapped in to take the place
of a...
Networking: A Beginner’s Guide Fifth Edition- P19 pps
...
Network Architecture (SNA) model, use a gateway. Gateways can also translate from
Ethernet to Token Ring, although simpler solutions than gateways exist if you need
such a translation. Because gateways ... that are handled by gateways. Most e-mail systems that can
connect to disparate systems either use a computer set up as a gateway for that chore
or let the e-mail server handle...
Networking: A Beginner’s Guide Fifth Edition- P20 ppsx
... 79
Chapter 7: Making WAN Connections
Analyzing Requirements
A company’s first WAN is usually driven by a particular application, such as an
accounting system. Then once the WAN is operational, ... cloud. Packet-switched networks can be more reliable because the data can
take many different paths, but you are not guaranteed that each packet will arrive in
77
Chapter 7
Making WAN Connect...
Networking: A Beginner’s Guide Fifth Edition- P21 pps
...
rural areas.
ADSL
As mentioned, ADSL can support up to 8 Mbps of receive data (also called downstream
data) and up to 1 Mbps of send data (also called upstream data). In addition to the data ... symmetric, meaning that the available
upstream bandwidth and downstream bandwidth are the same.
N RADSL Rate-adaptive DSL (RADSL) allows for 600 Kbps to 12 Mbps of
data to be received and 128 Kbps...
Networking: A Beginner’s Guide Fifth Edition- P23 ppsx
... either a Class A or a Class B address,
and then can handle a number of Class C addresses within its own address structure.
Changing ISPs, even for a company that has a valid Class C address, means ... changing
the company’s address from a Class C address available through the first ISP to a Class C
address available from the new ISP.
As mentioned earlier, the addresses 0,...
Networking: A Beginner’s Guide Fifth Edition- P28 ppsx
... of LDAP is that an organization can build a global directory
structure using a feature called referral, where LDAP directory queries that are managed
by a different LDAP server are transparently ... template for the directory and its entries. Classes are categories to which
all entries are attached. Attributes are items of data that describe the classes, such
as CN and OU. The synta...
Networking: A Beginner’s Guide Fifth Edition- P32 ppsx
... to an SSL VPN, they are shown a home page that displays all of
the connection options available to them, such as the example shown in Figure 10-8.
The choices available to a remote user may ...
that are managed might be hosted on Windows- or UNIX-based servers
N Access to shared corporate applications that have been set up to work through
the SSL VPN, such as an accounting system
N Ac...
Networking: A Beginner’s Guide Fifth Edition- P40 pps
... data needs of all those users. Database servers
might manage databases that are many gigabytes or terabytes in size, and they must
be able to retrieve large chunks of data from their databases ... certain applications, having such a large
number of processors can be an advantage. The Xeon processor family is packaged in
a Single Edge Contact Cartridge, which is much larger than the pac...
Networking: A Beginner’s Guide Fifth Edition- P48 pps
... and retransmissions as real
data. In fact, the total amount of good data flowing over a saturated Ethernet network will
be less than the amount flowing over a less-saturated network.
You can ... impact of growth on the different parts of the network that you’ve
already examined (applications, users, and services), because linear growth does not
always mean a matching linear impact ....
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