I’m in San Jose, CA for IPExpert’s two-week End-to-End route/switch bootcamp. I was very lucky to win this training at Cisco Networkers this year and am definitely looking forward to it. The flight out was a bit annoying (flew Airtran instead of Delta and you could really notice the little differences). Just got back from dinner at Chipotle’s and am planning to take an early night and hopefully get my internal clock synced up.
About Packetslave Industries
I am a Senior Network Engineer for a large global IT consulting company. I completed my CCIE Routing & Switching certification (#23115) in January 2009 and am currently working on CCIE Security. From time to time, I manage to sleep.more →Delicious Bookmarks
- How to: Upgrade to vSphere 4.1
Step-by-step process for upgrading. A huge caveat is that vCenter 4.1 requires a 64-bit OS and thus a DB migration. - Nexus 7000 Training Documentation
Some terrific (3rd party) introduction documents to the Nexus 7000 platform. - Enable ICMP (Ping) with the Server 2008 Firewall
Quite annoying that Win 2008 doesn't allow ICMP by default. Here's how to turn it back on so monitoring works properly. - Converting lvm to a normal partition
There's no easy way to do it, but here's a less-easy one. Need to do this to many machines, since mbralign doesn't support LVM. - GNU Parallel
Shell tool for running a job on multiple lines of input in parallel, either locally or on remote machines. - 6 Command Line Tools for Linux Performance Monitoring
Some interesting tools I hadn't heard of, in the same vein as 'top' but with more features. - OSPF Fast Convergence | CCIE Blog
Really, really in-depth discussion of tuning OSPF to minimize convergence/failover time. - VMware Snapshots 101
How VMDKs and snapshots actually work at a low level, along with some best practices. - Understanding TCP Sequence and Acknowledgment Numbers
Terrific use of Wireshark to deep-dive into the individual packets of a TCP session to see how the flow works. - VLAN Security White Paper - Cisco Systems
Covers most of the common ways to attack/exploit VLANs, along with how to protect against them (when possible) - Mac Configuration Management at Los Alamos National Laboratory (PDF)
Puppet is more-and-more becoming the Mac bulk administration tool of choice. Google uses it too. - Practical, Visual, Three-Dimensional Pedagogy for Internet Protocol Packet Header Control Fields
A long-winded way of saying "building the TCP and IP packet headers using Lego. Awesome - Tradeoffs between scalability and performance in UCS
One Cisco UCS system can scale to between 80 and 122 blades, depending on uplink oversubscription. - How to Get Catalyst Switch Backplane Utilization Using SNMP
Aggregate bandwidth across all modules. Doesn't seem to be possible on the 4500, unfortunately. - Port forwarding a range of ports on Cisco IOS
Using an ACL with a one-IP address pool to automatically forward multiple ports.

0 Responses
Stay in touch with the conversation, subscribe to the RSS feed for comments on this post.