A MAC flap is caused when a switch receives packets from two different physical/logical interfaces with the same source MAC address. The switch then learns where the MAC address is and puts in to a table. This table has the physical/logical interface and the MAC address. When flapping occurs it causes this table to be […]
Tag: IOS
SNMP v3 + Cisco IOS Crash Course
SNMPv3 allows for authentication and encryption (AES, DES, 3-DES) for managing core routers and switches. CiscoWorks LAN Manager Solution (LMS) requires SNMPv3 to be enabled and setup correctly for doing port VLAN tagging and a various other features through the LMS web interface. Here is a simple crash course on setting up SNMPv3 on an […]