Juniper

Moving Towards JNCIE

Posted on November 1, 2009. Filed under: JNCIE, Juniper, Professional, tips for JNCIE |

Moving towards JNCIE is not very easy. Alot of things to cover, many milestones to achieve, needs to practice alot of things. Well so far i have started as usual i did in JNCIP just following the book and practicing as much as i can.

  1. Network Discovery
  2. MPLS  and Traffic Engineering
  3. Firewall Filters and Traffic Sampling
  4. Multicast
  5. IPV6
  6. Class of Servic
  7. VPNS

I have gone through the book once. Trying it second time and doing the hands on practice also this time.

The recommended stuf to perpare for that is JNCIE Study Guide a great book and Advanced VPNs Training of Juniper.

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overload in OSPF in JUNOS

Posted on April 30, 2009. Filed under: Juniper, ospf, overload |

Configure the Router to Appear Overloaded

You can configure the local router so that it appears to be overloaded. You might do this when you want the router to participate in OSPF routing, but do not want it to be used for transit traffic. (Note that traffic to immediately attached interfaces continues to transit the router.)

You configure or disable overload mode in OSPF with or without a timeout. Without a timeout, overload mode is set until it is explicitly deleted from the configuration. With a timeout, overload mode is set if the time elapsed since the OSPF instance started is less than the specified timeout.

A timer is started for the difference between the timeout and the time elapsed since the instance started. When the timer expires, overload mode is cleared. In overload mode, the router LSA is originated with all the transit router links (except stub) set to a metric of 0xFFFF. The stub router links are advertised with the actual cost of the interfaces corresponding to the stub. This causes the transit traffic to avoid the overloaded router and take paths around the router. However, the overloaded router’s own links are still accessible.

To mark the router as overloaded, include the overload statement at the [edit protocols (ospf | ospf3)] hierarchy level (for routing instances, include the statement at the [edit routing-instances routing-instance-name protocols ospf] hierarchy level):

[edit protocols (ospf | ospf3)]

overload;

To specify the number of seconds at which overload is reset, include the timeout option when specifying the overload statement:

[edit protocols (ospf | ospf3)]

overload timeout <seconds>;

The time can be a value from 60 through 1800 seconds.

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Juniper Olive 9.3

Posted on April 24, 2009. Filed under: Juniper |

Hurray! I am able to run Juniper Olive version 9.3

I will update Olive page  in a few days i am damn tired 🙂

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JNCIP Passed

Posted on April 22, 2009. Filed under: Juniper, Professional |

A milestone is achieved on 1st April 2009, JNCIP-M/T is passed.

I have been working for long time to get JNCIP done. Last year 2008 July I asked my company to get me boot-camp but they didn’t agree. So in November I wanted to appear as exam was going to held in Islamabad Pakistan. Again I was disappointed as Bomb blast postponed the exam.

At last for April they agreed to take exam in Pakistan for the first time Juniper Networks took lab exam in Pakistan. And I passed the exam.

Jason was the proctor he was very nice person, professionaly and socialy as well.

Now next mile-stone is JNCIE-M/T lets strat…

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