Links

American Registry for Internet Numbers:
https://www.arin.net/

BGP Stream- free resource for receiving alerts about hijacks, leaks, and outages in the Border Gateway Protocol:
https://bgpstream.com

Cisco Config Guides:
http://www.cisco.com/c/en/us/support/switches/nexus-7000-series-switches/products-installation-and-configuration-guides-list.html

http://www.cisco.com/c/en/us/support/switches/nexus-5000-series-switches/products-installation-and-configuration-guides-list.html

http://www.cisco.com/c/en/us/support/switches/nexus-2000-series-fabric-extenders/products-installation-and-configuration-guides-list.html

Cisco Command References:
http://www.cisco.com/c/en/us/support/switches/nexus-7000-series-switches/products-command-reference-list.html

http://www.cisco.com/c/en/us/support/switches/nexus-5000-series-switches/products-command-reference-list.html

Cisco Feature Navigation (IOS):
http://tools.cisco.com/ITDIT/CFN/jsp/compareImages.jsp

Cisco Tools & Resources:
http://www.cisco.com/c/en/us/support/web/tools-catalog.html

Cisco Voice Codec Bandwidth Calculator (You need a CCO Login):
http://tools.cisco.com/Support/VBC/do/CodecCalc1.do

comScore Rankings:
http://www.comscore.com/Insights/Rankings

Google Tools:
https://toolbox.googleapps.com/apps/dig/

Looking Glass Threat Map:
https://map.lookingglasscyber.com/

Microsoft Message Header Analyzer Tool:
https://testconnectivity.microsoft.com/MHA/Pages/mha.aspx

NANOG Tutorials:
https://www.nanog.org/resources/tutorials

Norse Cyber Attack Map:
http://map.norsecorp.com

Palo Alto Live Community:
https://live.paloaltonetworks.com/

Service Name and Port Number Registry:
http://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml

Submarine Cable Map:
http://www.submarinecablemap.com/

UCSM CLI Navigator:
http://www.cisco.com/web/techdoc/ucs/reference/tree/b/bnav.html

UCSM GUI:
http://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/sw/gui/config/guide/2-1/b_UCSM_GUI_Configuration_Guide_2_1.html

Wireshark’s OUI Lookup Tool:
https://www.wireshark.org/tools/oui-lookup.html