Powered by Max Banner Ads 

@fryguy

Posts Tagged ‘junos’

,

OSPF Router-ID and Traceoptions

In How To, Junos on April 3, 2013 at 09:55

 

OSPF Lab Topology

Ok, time for some of the other things that we might do with OSPF.  First up, router-ids.   For this lab, we will create router-ids in the form of xx.xx.xx.xx where x=Router number.  For example, R4 will be 44.44.44.44, and we won’t use a loopback interface for this.

 

First we can start with changing it on R4:

R4(config)#router ospf 1

R4(config-router)#router-id 44.44.44.44

Reload or use “clear ip ospf process” command, for this to take effect

 

So we have to clear the OSPF process in order for this to take effect.

R4(config-router)#^Z

R4#clear ip ospf process 

Reset ALL OSPF processes? [no]: y

R4#

 

Ok, we should now have a Router-ID of 44.44.44.44.

R4#sh ip ospf  | inc ID 

 Routing Process “ospf 1″ with ID 44.44.44.44

Good.  Time to recheck connectivity.

R4#ping 3.3.3.3 so lo 0

 

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 3.3.3.3, timeout is 2 seconds:

Packet sent with a source address of 4.4.4.4

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms

R4#

 

Good, we can still ping R3 from R4.  Now, let’s do the same thing on J2.

  Read the rest of this entry »

, ,

Junos – OSPF and Rollback

In How To, Junos on February 28, 2013 at 12:11

Junos_sw_logo.jpg

This post continues off the previous JUNOS posts.

OSPF-Lab-Topology.jpg

Ok, time to rollback to the rescue configs. 

 

Up first replacing the config on R4  (if you have not done this in the last lab)

R4#configure replace flash:base.txt

 

Ok, that’s done – J1, J2, and J3 next.

 

First up, we need to roll-back to the rescue config. This is done from the edit mode by issuing the command rollback rescue.

 

jfry@J1> edit

Entering configuration mode

 

[edit]

jfry@J1# rollback rescue

load complete

 

[edit]

jfry@J1# commit and-quit

commit complete

Exiting configuration mode

 

jfry@J1>

 

Now to J2:

  Read the rest of this entry »

, ,

Author Series – Peter V Southwick

In Authors on February 13, 2013 at 09:00

117862_7549_small.jpg

Welcome to a new series of blog posts that I am working on.  It is the intention of these interviews to bring a human side to the technical author.  I feel that each author has a story to share , and I wanted to provide them a way to share that story. 

Our first author for this series is Peter V Southwick whose latest book is Juniper Networks Warrior published by O’Reilly Press.

Author Name: Peter V Southwick

Book Title: Juniper Networks Warriors

Book Publisher: O’Reilly

Author Social Media Handle/Web Site/Public Contact: Linked-in: Peter V Southwick /peter@proteus.net

Other books authored: Juniper Enterprise Routing 2nd ed. (O’Reilly); ISDN Systems and Services 3rd ed. (MCGraw-Hill); Telecommunications A Beginners Guide (Osborne); Handbook of Local Area Networks (Auerbach); JNCIE-SP Workbook (Proteus Press)

 

  1. Tell us a little background on yourself; is there anything unique about you that you would like to share that people might not be aware of?

    I’m a fourth generation telephone brat. My great-grandfather started the Champlain Telephone Company, which he passed through the generations. My brother and 1st cousin both still work for the company. Read the rest of this entry »

%d bloggers like this: