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Routing Quiz

Ahmed Serag
Level 1
Level 1

Hello Ciscos !!

I have a Routing question that I need to answer it  quickly 

if I have this topology how can making router 0 switching between two links every 10 minutes,, the direct link is administratively down and another link is up for 10 minutes .. then the other link is up and direct link become administratively down for 10 minutes 
The routing protocol used EIGRP  

 

Screenshot (64).png

4 Replies 4

Seb Rupik
VIP Alumni
VIP Alumni

Hi there,

create a full mesh EIGRP topology bertween the three routers.

 

Assuming on router0 fa0 is connected to router1 and fa1 is connected router2 ...

 

On router0 create an EEM script which runs every 10 minutes. It will check the status of fa0, if it is up then it will shut it down. If fa0 is down, then it will no shut it.

You could add a small sanity check to ensure that fa1 is up before shutting fa0 down....you could then go a step further and ensure that routes on router2 are being received via fa1 before shutting down fa0.

 

cheers,

Seb.

Leo Laohoo
Hall of Fame
Hall of Fame
I am very certain this question is school work.
You need to talk to your instructor so he/she can properly guide you which direction you should be going.
There is a strong chance the answers we will provide will be unsuitable and you will get a bad score.

Martin L
VIP
VIP
you may want to seek help in proper education and cert forum which is CLN, cisco learning network. this forum here is more technical, real-life issues, problem, solutions.

Hello,

 

on a side note, and following Sep's suggestion to use an EEM script, below is what the script would look like (you need two scripts actually). The first script would run at 10, 30, and 50 minutes, the second at 20, 40, and 60 (0) minutes:

 

interface FastEthernet0/0
description Direct Link to Router2
!
interface FastEthernet0/1
description Backup Link to Router2
!
event manager applet SHUT_INT_FA0
event timer cron cron-entry "*/10,30,50 * * * *" maxrun 999999
action 1.0 cli command "enable"
action 2.0 cli command "int FastEthernet0/0"
action 3.0 cli command "shut"
action 4.0 cli command "exit"
action 5.0 cli command "int FastEthernet0/1"
action 6.0 cli command "no shut"
action 7.0 cli command "exit"
action 8.0 cli command "end"
!
event manager applet SHUT_INT_FA1
event timer cron cron-entry "*/0,20,40 * * * *" maxrun 999999
action 1.0 cli command "enable"
action 2.0 cli command "int FastEthernet0/0"
action 3.0 cli command "no shut"
action 4.0 cli command "exit"
action 5.0 cli command "int FastEthernet0/1"
action 6.0 cli command "shut"
action 7.0 cli command "exit"
action 8.0 cli command "end"

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