From 33613a85afc4b1481367fbe92a17ee59c240250b Mon Sep 17 00:00:00 2001 From: Sven Eisenhauer Date: Fri, 10 Nov 2023 15:11:48 +0100 Subject: add new repo --- Bachelor/CCNA4/en_CCNA4_v30/ch2/2_2_3/buttons.html | 110 +++++++++++++++++ Bachelor/CCNA4/en_CCNA4_v30/ch2/2_2_3/content.html | 132 +++++++++++++++++++++ Bachelor/CCNA4/en_CCNA4_v30/ch2/2_2_3/index.html | 29 +++++ Bachelor/CCNA4/en_CCNA4_v30/ch2/2_2_3/media.html | 21 ++++ 4 files changed, 292 insertions(+) create mode 100644 Bachelor/CCNA4/en_CCNA4_v30/ch2/2_2_3/buttons.html create mode 100644 Bachelor/CCNA4/en_CCNA4_v30/ch2/2_2_3/content.html create mode 100644 Bachelor/CCNA4/en_CCNA4_v30/ch2/2_2_3/index.html create mode 100644 Bachelor/CCNA4/en_CCNA4_v30/ch2/2_2_3/media.html (limited to 'Bachelor/CCNA4/en_CCNA4_v30/ch2/2_2_3') diff --git a/Bachelor/CCNA4/en_CCNA4_v30/ch2/2_2_3/buttons.html b/Bachelor/CCNA4/en_CCNA4_v30/ch2/2_2_3/buttons.html new file mode 100644 index 0000000..03c01c5 --- /dev/null +++ b/Bachelor/CCNA4/en_CCNA4_v30/ch2/2_2_3/buttons.html @@ -0,0 +1,110 @@ + + + + + + + + + + + +New Page 1 + + + + + + + + + + + + + + + + + + + + + + + + +
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+ + 2.2 + WAN Technologies 
  + 2.2.3 + Leased line 
+ + + + + + +
+ + When permanent dedicated connections are + required, leased lines are used with capacities ranging up to 2.5 Gbps.

+ A point-to-point link provides a + pre-established WAN communications path from the customer premises + through the provider network to a remote destination. Point-to-point + lines are usually leased from a carrier and are called leased lines. + Leased lines are available in different capacities. + These + dedicated circuits are generally priced based on bandwidth required + and distance between the two connected points. Point-to-point links + are generally more expensive than shared services such as Frame Relay. + The cost of leased-line solutions can become significant when they are + used to connect many sites. There are times when cost of the leased + line is outweighed by the benefits. The dedicated capacity gives no + latency or jitter between the endpoints. Constant availability is + essential for some applications such as electronic commerce.

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A router serial port is required for + each leased-line connection. A CSU/DSU and the actual circuit from the service provider are also + required.

+

Leased lines are used extensively for + building WANs and give permanent dedicated capacity. + They have + been the traditional connection of choice but have a number of + disadvantages. WAN traffic is often variable and leased lines have a + fixed capacity. This results in the bandwidth of the line seldom being + exactly what is needed. In addition, each end point would need an + interface on the router which would increase equipment costs. Any changes to the leased line + generally require a site visit by the carrier to change capacity.

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Leased lines + provide direct point-to-point connections between enterprise LANs and connect individual branches to a + packet-switched network. Several connections can be multiplexed over + a leased line, resulting in shorter links and fewer required + interfaces.

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+ + + Interactive Media Activity

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Checkbox: WAN Technologies Leased Lines

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Upon completing this activity, the student + will be able to identify the characteristics associated with a + leased line connection.

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