Listening to first part and second part video talks with Zaheer Aziz makes me even more realize that the procedure and goal of troubleshooting are important. I’m working in an area where troubleshooting is my bread and butter for 12-hour shift.
Zaheer Aziz is one of the author of the Troubleshooting IP Routing Protocols. I have [...]
My RSS reading list apparently has to be extended to several more links, particularly in Cisco networking area. Networkworld.com compiled a very good article comprising several read-worthy sites to quench your knowledge thirst. (Right, like you think reading Cisco Doc CD is not enough!).
http://wavestormits.com/friesen/work/creativity/omnigraffle/omni_stencil.html
Before BGP advertised its network, it checks the forwarding table for an exact match of network number and mask on router’s routing table.
R1 is expected to advertise network 128.20.0.0/16 and 10.10.10.0/24 to R2 using this configuration
router bgp 1
no auto-summary
network 128.20.0.0 mask 255.255.0.0
network 10.10.10.0 mask 255.255.255.0
However, when we check on R1, it is only 128.20.0.0 network [...]
This article is a continuity from my previous article.
As I’ve upgrade my MBP from Tiger to Leopard, some adjustment needs to be made.
Installing XCode 3.0
If you get the Leopard CD, you can install XCode 3.0 from it. Go to Optional Install - Xcode Tools - and run XcodeTools.mpkg to install.
Or you can also download it [...]
Two routers directly connected using network 10.0.0.0/8. R1 S1/0 is 10.0.0.1/8 and R2 s1/0 is 10.0.0.2/8. Both are using the same AS 1.
Symptom:
- BGP state keeps on ACTIVE.
- Unable to ping each other interface.
- Interface is UP/UP
Alignment errors are caused by misaligned reads and writes. For example, a two byte read where the memory address is not an even multiple of two bytes is an alignment error. Alignment errors are caused by a software bug.
Troubleshooting Spurious Accesses, Alignment Errors, and Spurious Interrupts
To make it a bit more practical, take a look [...]
Can’t wait to do the next one. Seems like this journey never ends. But I like it anyway.
Today, I just passed Cisco ARCH 642-871 (Designing Cisco Network Architectures). I was using CCDP Self-Study: Designing Cisco Network Architectures (ARCH) (ISBN-10: 1-58705-185-0; ISBN-13: 978-1-58705-185-2) and believe me, it was like doing CCDA, full of stuff to memorize.
Passing Cisco QOS 642-642 exam yesterday, 11 August 2007, makes me thinking that I’d actually been wasting my time for more than half a year by not studying nor doing any exam. It was like having my life stopped by the time I got a new job and suddenly it changed my expectation and perspective [...]
For those Apple Mac (Intel) users out there that have been asking how to compile Dynamips on Apple Mac(Intel) or if you want, you can try my Apple-Mac-(Intel)-compiled dynamips-0.2.7-intel-mac.bin.tar.bz2.