postIt

errdisable_recovery.pdf explains why our HP-Blade suddenly has disabled port (turn red light from initial green) when connected to a switch.

This blade Catalyst 3020 ports must have been in errdisable/error disable state. First, look for something like

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#show interfaces gigabitethernet 4/1 status
 
Port    Name       Status       Vlan       Duplex  Speed Type
Gi4/1              err-disabled 100          full   1000 1000BaseSX

Downloaded several IOS images. But the that truly boots and up-running in console is c3620-io3-mz.120-7.T.bin for c3600 platform model 3620. A quick look at GNS3-0.5-tutorial.pdf shows that GNS3 only supports some platform.

What I don’t really know is that can we emulate unsupported platform.

net = newff([0 10],[5 1],{'tansig' 'purelin'});
implements a feed forward ANN with input range of 1 to 10, 5 neuron in its hidden-layer with tansig transfer function, and a single purelin transfer function in output layer.

tansig
implements

n = 2/(1+exp(-2*n))-1

Hyperbolic tangent sigmoid transfer function.

tcp.flags == 0x18 and ip.src == 10.201.62.249 and ip.dst == 10.201.62.78

Filter out PSH ACK (flags 0x18: “Push” and “Acknowledgement”). In UCIP XML-RPC, it carries response from AIR server e.g. the following stream

HTTP/1.1 401 Access to /Air denied for this user ...
Content-Length: 366
Content-Type: text/html
Date: Fri, 26 Mar 2010 07:52:55 GMT
Server

training(:,3)
ans =

0.0754
0.0636
0.0745
...


Access third row.

[training] = xlsread('ift-ann.xls', 'training')

Read the sheet “training” inside that xls and populate it to training.

Running a binary (xmlrpcsimulator) to simulate Balance Enquiry request in UCIP:
./xmlrpcsimulator nv 10.2xx.xxx.xxx 10010 "UGw Server/2.2/1.0/" /Air BalanceEnquiry.xml f