Using 3rd Party SFP modules in Cisco Devices

All SFP modules contain in their EEPROM, a Serial Number, Vendor Name & ID, Security code and a CRC. The Switch checks this information, if it can't verify it might give messages like the following:

%PHY-4-UNSUPPORTED_TRANSCEIVER: Unsupported transceiver found in Gi1/0/1
%GBIC_SECURITY_CRYPT-4-VN_DATA_CRC_ERROR: GBIC in port 65538 has bad crc

There are two undocumented cisco commands to get 3rd party SFP modules to work:

switch(config)# service unsupported-transceiver
switch(config)# no errdisable detect cause gbic-invalid

Visio tips & tricks

In this post I will collect Visio tips & tricks that I come up with and links to similar articles.

Shortcuts:
Ctrl+1 Pointer Tool
Ctrl+2 Text Tool
Ctrl+3 Connector Tool
Ctrl+W Zoom Whole Page
Ctrl+Shift+G Group
Ctrl+Shift+U Ungroup

Links:
Shortcuts to Edit in Visio @ Visio Insights
Nortel Visio Stencils
Visio Stencils collection (lots of vendors)

Most useful Freeware/Shareware Windows Apps.

Firefox: THE browser of the Internet. Won't use anything else.
Total Commander, my choice of File Manager since, forever.
CDBurnerXP: Very nice CD/DVD/BlueRay, Data/Audio burner. Freeware.
SysInternals: Indispensable system tools.
Media Player Classic: With a few codecs, it's all you need to play your videos.
Winamp: Essential audio player for me.
TrueCrypt, an essential encryption suite.
BitComet, my choice of torrent client.
Foxit, a freeware PDF Reader. It's light-weight and fast, why use bloated Adobe apps?
Daemon Tools Lite, mount cd/dvd images

SyncToy

iMazingConverterWindows.exe iMazingConverter, heic'den jpg, mov'dan mp4'e çeviriyor, gerçekten free ama dikkat et, converter'ı indir sadece.