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IA Switch Recovery


IA Switch - 6800IA 2T Parent Switch - 6807XL Problem: Lost IOS on IA Switch while adding it to the stack. I'm not exactly sure if it was shipped without an IOS or if I corrupted the IOS while adding it to the FEX stack. Solution: Pull IA IOS image…

Adj resolve request: Failed to resolve


I really don't have much information on this. I just happen to turn on terminal monitor on an SSH session and saw these errors. ptvNswtCore# .Jan 11 20:56:12.371: %ADJ-3-RESOLVE_REQ: Adj resolve request: Failed to resolve 10.123.32.75 Vlan32 ptvNswtCore# .Jan 11 20:56:17.647: %ADJ-3-RESOLVE_REQ: Adj resolve request: Failed to resolve 10.123.69.3 Vlan68…

Policy-Based Routing


Intro BEFORE attempting to do this, make sure that your version of IOS supports PBR. Policy-Based Routing allows you to control traffic based on access lists. This comes in handy for me mostly when I want to direct traffic to a next hop based on the characteristics of the traffic.…

TFTP Server: CentOS 7


CentOS 7 was developed as a core based Linux server OS. As with all core products, you will have to pretty comfortable with the commande line as well as google.com. Ijs, most people don't know Linux even though most devices run some flavor of linux. Today I will be showing…

SNMP v3 Configuration Guide


  SNMP is fairly easy to set up on a Cisco Router or Switch. I will be implementing SNMP on a Cisco 2901 and sending the SNMP data to Solar Winds Orion. There are a variation of v3 setups you can implement around encryption and authentication. We are only going…