How not to install fibre links between data centres!
Hi Folks,
A couple of years ago we had to replace the core switches between two of our data centres, a simple task for the most part - these new switches would be state of the art Cisco Catalyst units.
The link between the two sites was a dark fibre, with 8Gb bandwidth running full duplex over a redundant cable pair. It was quite a surprise when we started to tidy up the cables to find this - see the attached images.
The cables comprised two male to male cables, with the ends joined with Bluetack. I'm amazed that it worked for so long. - Actually I'm amazed it worked at all!
hi. I am newbie in Unix. I wanted to install Free BSD 5.2.1 to my computer which winXp was already installed. But i couldn't.
I chose Standard. Then it said you are going to use dos style fdisk partitioning. Then a window displayed begining like this.
WARNING: A geometry of 155127/16/63 for... (0 Replies)
Hi,
I have variables like mentioned below and want to separate as mentioned in output.
var1="4 x fibre cards"
var2="2 fibre cards"
var3="6 - fibre cards"
var4="4 x dual-port"
I have variables like this.I want to separate numbers from this and fibre cards from this.
output has to be... (4 Replies)
Hello,
I have two systems that are being prepared to be SAN attached ..
can anyone tell me any specific checks I should perform prior to the cards being installed...
I am aware of firmware / OS level and relevant drivers, is there anything else?
thanks
Chris. (8 Replies)
We will be buying new Xeon E5-based servers for our datacenter and were wondering which Fibre Channel host bus adapters we should select for these. The choices are Emulex or QLogic (8Gb FC HBAs). Anybody have any recommendations on which is the better choice?
Thanks in advance. (1 Reply)
Hi guys,
I've been trying to tackle this issue for days and I'm stumped. Hopefully someone can give more light on what else I can do.
I have a p7 series box, with dual VIOS and 10 lpars and everything was working fine until I had to move the box to another location in the data centre. Ensured... (16 Replies)
Discussion started by: aixkidbee
16 Replies
LEARN ABOUT DEBIAN
flow-gen
flow-gen(1) General Commands Manual flow-gen(1)NAME
flow-gen -- Generate test flows
SYNOPSIS
flow-gen [-h] [-b big|little] [-d debug_level] [-n count] [-V version] [-z z_level]
DESCRIPTION
The flow-gen utility generates a test pattern of flows in any of the currently supported export versions typically for debugging purposes.
OPTIONS -b big|little
Byte order of output.
-d debug_level
Enable debugging.
-h Display help.
-n count Generate count flows. Default 1000.
-V version
Generate version type exports. Supported versions are:
1 NetFlow version 1 (No sequence numbers, AS, or mask)
5 NetFlow version 5
6 NetFlow version 6 (5+ Encapsulation size)
7 NetFlow version 7 (Catalyst switches)
8.1 NetFlow AS Aggregation
8.2 NetFlow Proto Port Aggregation
8.3 NetFlow Source Prefix Aggregation
8.4 NetFlow Destination Prefix Aggregation
8.5 NetFlow Prefix Aggregation
8.6 NetFlow Destination (Catalyst switches)
8.7 NetFlow Source Destination (Catalyst switches)
8.8 NetFlow Full Flow (Catalyst switches)
8.9 NetFlow ToS AS Aggregation
8.10 NetFlow ToS Proto Port Aggregation
8.11 NetFlow ToS Source Prefix Aggregation
8.12 NetFlow ToS Destination Prefix Aggregation
8.13 NetFlow ToS Prefix Aggregation
8.14 NetFlow ToS Prefix Port Aggregation
1005 Flow-Tools tagged version 5
-z z_level
Configure compression level to z_level. 0 is disabled (no compression), 9 is highest compression.
EXAMPLES
Generate a test pattern of 1000 version 5 flows and send them in the Cisco NetFlow packet format to 10.0.0.1 port 9500.
flow-gen -V5 | flow-send 0/10.0.0.1/9500
BUGS
The test pattern may change between releases.
AUTHOR
Mark Fullmer maf@splintered.net
SEE ALSO flow-tools(1)flow-gen(1)