|+10 Mace of Divine Smiting.
||[Jan. 30th, 2007|10:51 am]
Work related conversations:|
Me: "So, you last saw it about two years ago in a folder called c:\stuff?"
Them: "uh huh."
Me: "Uh, let me transfer you to desktop support; they handle files on the C:\ drive..."
Me: "Anyway, if we actually use T-SQL as intended, we can catch any errors and email them to the relevant DBA..."
Them: "Don't change anything!"
Me: "Umm, do you want to know why the jobs are failing?"
Me: "Nothing is easy for the unwilling."
Me: "Nevermind... let me show you an example of what I mean..."
Them: "It doesn't work."
Me: "I know. Software Development is working on it. Talk to X if you need an update."
Them: "Oh, OK."
*two hours later*
Them: "It still doesn't work."
Me: "Yes, but it is out of my hands. I have passed it on to others who can fix it."
Them: "Maybe if I reboot ... "
*five minutes later*
Boss: "Please suspend access to [useless waste of air] effective now."
Me: "No problem."
*reviews network design with consultant engineer*
Me: "Umm, you really can't engineer it like that. RSTP is intended for extended star topologies, not rings, especially not rings with 20 or more nodes. The BPDUs will expire before reaching the other interface, resulting in two or more roots, resulting in loops, resulting in broadcast storms."
Me: "The IEEE 802.1Q and 802.1W standards dictate a maximum network diameter of 7."
Boss: "Is there any way you can make it work?"
Me: "If you increase the max_age timer it's possible the BPDUs won't expire in transit. But that would need to be tested, and it's likely you'll still have exponential convergence times, depending on how many nodes in excess of 7 the converged ring is.
Boss: "Great. We'll do that then."