Really slow bgp convergence !?

Christophe Lucas

When your router takes so long time to learn routes, do not try to tweak too long Time your bgp router process… Think mtu ;-) it is not unique solution but it is big one ;-)

Welcome to world v2.0

Christophe Lucas

Just to welcome my little son : Clément who was born on 15th april 2013.

IMG_14362

 

 

 

 

 

 

 

 

 

 

 

 

 

I think CCIE studies will be delayed for some time, but my desire is already there… Proof : some 2611, 3550, 1841 are here : ready to study at home ;) So I will be back to game really nearly.

Tip Mysql : Cannot delete or update a parent row: a foreign key constraint fails

Christophe Lucas

For those of you who are faced to this type of error, the command “SHOW ENGINE INNODB STATUS;” is your friend.

[...]
------------------------
LATEST FOREIGN KEY ERROR
------------------------
130322 12:03:42  Cannot drop table `test`.`events`
because it is referenced by `test`.`attachments`
[...]

Here it is my 2 cents of the day ;)

Sting concert in Rouen

Christophe Lucas

For the first time of  life I have seen Sting in concert and it was in rouen : my city. It was great ! It was really great ! Thank you Sting for this awful moment ! This concert will remain etched in my memory. Ok I’m a fan!

THANK YOU !

MPLS RD, RT, label : where is the truth ?!

Christophe Lucas

I was reading all my RSS feeds and I am subscribed to http://mellowd.co.uk/ccie/ . I have noticed this post for you : http://mellowd.co.uk/ccie/?p=2923 It talks about RD, RT and label about MPLS. I found this post really clear about this terms and concepts.

To sum-up :

  • RD = marks routes with an ‘id’. This ‘id’ is composed by two terms (IP_ASN:number)
    • IP_ASN : IP address or ASN
    • Number : which identify the VPN

I recommand to use IP in IP_ASN. I understand it is really easy to read : 3215:100 and not 81.252.160.88:100. The last one is less easy, but when you deploy a large MPLS cloud and you must supply some load-balancing or fail-over on different PE, the RR(Route Reflector) will choice the best route in the two : 3215:100:192.168.1.0 which is received). With IP1:100:192.168.1.0 and IP2:100:192.168.1.0 the two routes will be used, so you will be able to load balance trafic over two links.

NetBSD-6.0 is on the way...

Christophe Lucas

As said riz@ :

NetSBD 6.0 is currently being copied to ftp.netbsd.org.  Sometime in
the next 24h it will be made world-readable so mirrors can
begin the process of copying it.

It will be announced sometime on Wednesday.

Thanks!
+j

Ready to test it and upgrade/install servers…

Linux : Remote desktop && Hamachi

Christophe Lucas

For those of you which need to access by means of “Remote Desktop” you can use :

  • Nomachine NX
  • Teamviewer
  • VNC

And you can use both LogmeIn Hamachi and VNC. Hamachi is a software which can make network betweeen devices. Against logmein product which lot of you know, here it is at Level2 (OSI).

 

How you create your VPN ?

For Linux users, you must install vnc4server and hamachi (supplied by LogmeIn) package (dpkg is your friend). Then you launch your vnc server :