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/ch4/4_3_1/buttons.html | 109 +++++++++++++++++ Bachelor/CCNA4/en_CCNA4_v30/ch4/4_3_1/content.html | 134 +++++++++++++++++++++ Bachelor/CCNA4/en_CCNA4_v30/ch4/4_3_1/index.html | 29 +++++ Bachelor/CCNA4/en_CCNA4_v30/ch4/4_3_1/media.html | 21 ++++ 4 files changed, 293 insertions(+) create mode 100644 Bachelor/CCNA4/en_CCNA4_v30/ch4/4_3_1/buttons.html create mode 100644 Bachelor/CCNA4/en_CCNA4_v30/ch4/4_3_1/content.html create mode 100644 Bachelor/CCNA4/en_CCNA4_v30/ch4/4_3_1/index.html create mode 100644 Bachelor/CCNA4/en_CCNA4_v30/ch4/4_3_1/media.html (limited to 'Bachelor/CCNA4/en_CCNA4_v30/ch4/4_3_1') diff --git a/Bachelor/CCNA4/en_CCNA4_v30/ch4/4_3_1/buttons.html b/Bachelor/CCNA4/en_CCNA4_v30/ch4/4_3_1/buttons.html new file mode 100644 index 0000000..cbf30af --- /dev/null +++ b/Bachelor/CCNA4/en_CCNA4_v30/ch4/4_3_1/buttons.html @@ -0,0 +1,109 @@ + + + + + + + + + + + +New Page 1 + + + + + + + + + + + + + + + + + + + + + + + +
  + + + + + + + +
+ + \ No newline at end of file diff --git a/Bachelor/CCNA4/en_CCNA4_v30/ch4/4_3_1/content.html b/Bachelor/CCNA4/en_CCNA4_v30/ch4/4_3_1/content.html new file mode 100644 index 0000000..f25dc05 --- /dev/null +++ b/Bachelor/CCNA4/en_CCNA4_v30/ch4/4_3_1/content.html @@ -0,0 +1,134 @@ + + + + + + + + +Content + + + + + + + + + + + + + + + + + + + +
+ + 4.3 + DDR Configuration 
  + 4.3.1 + DDR + operation 
+ + + + + + +
+ Dial-on-demand routing (DDR) is triggered when traffic that matches a predefined set of + criteria is queued to be sent out a DDR-enabled interface. The traffic + that causes a DDR call to be placed is referred to as interesting + traffic. Once the router has transmitted the interesting traffic, the + call is terminated.

The key to efficient DDR operation is in the + definition of interesting traffic. Interesting traffic is defined + with the + + dialer-list + command. Dialer lists can allow all traffic from a specific protocol + to bring up a DDR link, or they can query an access list to see what + specific types of traffic should bring up the link. Dialer lists do not filter + traffic on an interface. Even traffic that is not interesting will be + forwarded if the connection to the destination is active.

+

DDR is implemented in Cisco routers in the following steps:

+
    +
  1. The router receives traffic, performs a routing table lookup to + determine if there is a route to the destination, and identifies the + outbound interface. +
    2. +
  2. If the outbound interface is configured for DDR, the router does a + lookup to determine if the traffic is interesting. +
    3. +
  3. The router identifies the dialing information necessary to make + the call using a dialer map to access the next-hop router. +
    4. +
  4. The router then checks to see if the dialer map is in use. If the + interface is currently connected to the desired remote destination, + the traffic is sent. If the interface is not currently connected to + the remote destination, the router sends call-setup information + through + the BRI using the D channel. +
    5. +
  5. After the link is enabled, the router transmits both interesting + and uninteresting traffic. Uninteresting traffic can include data and + routing updates.
    6. +
  6. The idle timer starts and runs as long as no interesting traffic + is seen during the idle timeout period and disconnects the call based on the idler + timer configuration. +
    7. +
+

The idle timer setting specifies the length of time the router should + remain connected if no interesting traffic has been sent. Once a DDR + connection is established, any traffic to that destination will be + permitted. However, only interesting traffic resets the idle timer.

+

+ + + + +
+ + + + + +
+ +
+ + + + + +
+ + + + + +
  +

+ + Web Links

+ + +

DDR

+ + http://www.cisco.com/en/US/tech/tk801/ tk133/tech_protocol_family_ home.html

+ +

+

+
+
+

+       +       +

+ + + + \ No newline at end of file diff --git a/Bachelor/CCNA4/en_CCNA4_v30/ch4/4_3_1/index.html b/Bachelor/CCNA4/en_CCNA4_v30/ch4/4_3_1/index.html new file mode 100644 index 0000000..82a25be --- /dev/null +++ b/Bachelor/CCNA4/en_CCNA4_v30/ch4/4_3_1/index.html @@ -0,0 +1,29 @@ + + + + +Cisco Global Learning Network + + + + + + + + + + + + + + + + <body> + + <p>This page uses frames, but your browser doesn't support them.</p> + + </body> + + + + diff --git a/Bachelor/CCNA4/en_CCNA4_v30/ch4/4_3_1/media.html b/Bachelor/CCNA4/en_CCNA4_v30/ch4/4_3_1/media.html new file mode 100644 index 0000000..dee6b88 --- /dev/null +++ b/Bachelor/CCNA4/en_CCNA4_v30/ch4/4_3_1/media.html @@ -0,0 +1,21 @@ + + + + + + +Flash Graphic + + + + + + + + + + + + \ No newline at end of file -- cgit v1.2.3