Bridging the gap between CCIE RS and SP

August 11, 2008

Blog humor

Filed under: Uncategorized — 21500 @ 2:03 pm

Every now and again when I read through the blog statistics I have a good chuckle at the search phrases that refer surfers to the blog.

Some recent humorous search keywords:
getting ccie easily
pass ccie in 40 days

This reminds me of the ccie or two in 30 days. Appolgies, I could not find the original in the groupstudy archive.

August 7, 2008

Junos basics

Filed under: Juniper — 21500 @ 9:08 pm

Lately I’ve been very curious about Junos. It also just so happened that we got a loan M10 (End-of-life?) from Juniper to ‘test’. Somehow it was decided that the best way to test is to put it in the production network. IMO this was not a bright move as there will be no tinkering with it, but anyhow, a good chance to get some exposure to the OS while it is still new and interesting. I’ve managed to simulate a juniper router with vmware using the files available for download on the torrent sites. Searching for ‘torrent olive vmware’ is a good start. Olive is in a way very similar to dynamips. In the coming weeks I will post some newbie level posts about my findings.

Juniper Certs
Im really keen on getting one Juniper cert, just for fun. Why for fun? JNCIS-ER Juniper cant be serious either right? One good thing about the Juniper certs though is that the Professional level cert is also a practical as like the expert level exam. The written for the Professional level also recertifies the expert level exam. Thats all fun and games, but there is no-way Im getting serious e.g JNCIE-M/T (reminds me of the ugliest car ever) until they make it look professional e.g JCIE looks sweet to me, that I wont mind putting along side CCIE on a business card.

Juniper blogs
While looking for juniper blogs, I found some interesting posts by Jeff Doyle that I thought was worth a mention. The posts cover the basics, suitable for people like me who have absolutely no idea. Jeff’s posts thus far:
Navigating a JUNOS Configuration
The JUNOS Software Architecture
Adding JUNOS to Your Repertoire

Booting Junos
Before continuing I have to mention that I have no idea what Im doing, so take everything juniper related with a pinch of salt.

Strictly speaking the Junos license requires the OS to be run on a juniper device, but I have to believe that for the purpose of learning the OS, Juniper would allow the use of an Olive. The package I downloaded had all the files included as well as the multicast patch already applied. After extracting I had the vwmare files and also the vwmare workstation. Steps taken to boot the olive:
1) Install Vmware Workstation
2) Boot the Olive.vmx in the Vmware Workstation

Thats it, pretty simple compared to dynamips. I had one thing I couldnt resolve by searching on the net. After login in as ‘root’ the Os took me too a ~# prompt, I was expecting > as suggested in Jeff’s posts. With some trial and error I typed the lucky command ‘cli’. This command takes the device from unix mode to router mode or ‘operational mode’:

login: root
[]:~#
[]:~# cli
root>

Once the OS is in this ‘router mode’ or ‘operational mode’ it starts to look, feel and react more like a router and less as a unix box. At first I could not ‘commit’ any new configuration. It is necessary to first set the root password:

root> configure
[edit]
root# set system host-name home
root# commit
[edit] ’system’ Missing mandatory statement:
‘root-authentication’ error: commit failed:
(missing statements)
root# set system root-authentication plain-text-password somepass
root# commit
root@home#

The next objective is to boot a second router and get the two to talk to each other.

August 5, 2008

Jorge Vazquez CCIE #21651

Filed under: CCIE — 21500 @ 6:02 pm

Congratulation Jorge, you thoroughly deserve it mate! Enjoy…

Jorge used to comment on the blog while I was in preparation mode and kept me on my toes. Im so glad my CCIE study partner from the other side of the world also made it to the top. Again, congrats :D

SP next Jorge?

August 2, 2008

Roadmap to destination SP

Filed under: CCIE SP — 21500 @ 12:33 am

Im all packed and ready for the trip to SP. By that I mean I have all the material needed to take me the distance, courtesy of Mike Down. Big thanks to him and IPexpert.

The shortcut straight to the SP written seems very tempting but going through all that studying for the written, it may payoff by getting the ccip cert along the way. More on the strategy later.

If the Cisco mobile lab team work their magic, SP may be available from May09 on the mobile lab. Im holding thumbs for this to happen as my only other viable lab location options are Brussels and Sao Paulo. I’d hate to go back to Brazil and Brussels is a ‘at best’ 15hour trip. It would be great to get a second star mid 09.

IP SLA and SNMP

Filed under: Uncategorized — 21500 @ 12:25 am

I did a search today to monitor ip sla state via snmp. I did not managed to find much usefull, but a bit more complicated version did help me on the path. The original version can be found on iohints: Log IP SLA failures which sends a syslog message when a failure occurs. This is a simplified version:

ip sla monitor 7
type echo protocol ipIcmp 150.100.1.254 source 150.100.1.1
frequency 300
ip sla monitor schedule 7 life forever start now

Then from a shell to poll the status:

snmpget -v2c -c public 150.100.1.1 1.3.6.1.4.1.9.9.42.1.2.9.1.6.7

Note that the ‘7′ at the end of the ip sla oid is the number of the configured ip sla entry. This should return:

SNMPv2-SMI::enterprises.9.9.42.1.2.9.1.6.7 = 1

or

SNMPv2-SMI::enterprises.9.9.42.1.2.9.1.6.7 = 2

The value ‘1′ means FAIL and ‘2′ SUCCESS.

I then used this information rolled into a perl script to notify the monitoring system whether the links are up or down. The need for this is due to the interface always being physically up and the possibility of reachabilty via an alternative path.

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