LCD Projectors

24
Feb

IPv6 (Cisco) Training – Using the "variation" (EIGRP) Command

Before taking this week's article to explain, let me thank all you readers who have read my previous articles, it was really my inspiration.

OK, let's get down to business in order for you to Cisco IOS "router configuration, use" command with "disorder" in an IPv6 network environment, the Cisco router (s) must be running Cisco IOS 12.4 (6) T or later.

Below shows the proper syntax and example of use ofcommand

Syntax: variance multiplier

Multiplier value – The value of measurement used for load balancing. Can be a value between 1 and 128 The default value is 1, which means equal cost load balancing.

Example
Router> Enable
Router # configure terminal
Router (config) # ipv6 unicast-routing
Router (config) # interface Fast Ethernet 0 / 0
Router (config-if) # enable IPv6
Router (config-if) # IPv6 EIGRP100
Router (config-if) # no shutdown
Router (config-if) # IPv6 EIGRP router 100
Router (config-router) # variance 4
Router (config-router) # router-id (IP address | ipv6-address)
Router (config-router) # no shutdown
Router (config-router) # End
Router # copy start run

In the above example, variance of the router is set to the value of four, warning that the speed router is "the router configuration mode" when "deviation" (EIGRP) commandused. If you need to "restore" the variance of a router back to default value of 1, used the word "Nee" in front of the command, as you can see the example below:

Example
Router> Enable
Router # configure terminal
Router (config) # ipv6 unicast-routing
Router (config) # interface Fast Ethernet 0 / 0
Router (config-if) # enable IPv6
Router (config-if) # IPv6 EIGRP 100
Router (config-if) # no shutdown
Router (config-if) # router EIGRP IPv6100
Router (config-router) # no variance
Router (config-router) # router-id (IP address | ipv6-address)
Router (config-router) # no shutdown
Router (config-router) # End
Router # copy start run

Now, for those not familiar with the "disorder" (EIGRP) command here is a quick overview:

"Diversion" (EIGRP) command is used to manage load balancing (sharing) in an international network EIGRP.

Meaning, when a network administrator(like you) make a "diversion" of value on a Cisco router, Enhanced Interior Gateway Routing Protocol   (EIGRP) use this value to install loops broken free with cost differences between a table of local bank. Subsequently, the local routing table will be (re) link hardware or software to load share (balance) between different paths.

EIGRP has two conditions that a route (s) must meet to be installed in the local routing table:

1.Cycle-free path. A route is considered as the loop-free if the distance is below the total distance, or when the path is possible successor.

2. And the statistics of the path is less than the best path metric (successor) of the variance is set for the instrument of routers.

In other words, if the variance of a router is set to 1, then only the paths with the same metric as a replacement (the bestroute) is installed in the local routing table. And if the variance of a router is set to 2, which means that any EIGRP-learned route with a metric less than 2 times the successor metric will be installed in local routing table.

I hope this article is very informative and has contributed to rapid use variance "understand" (EIGRP) command to configure the router. If you need to learn, I suggest you visit my site, I have found the latest information in connection withCisco IPv6 Design and Implementation Techniques.

To your success.

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