HSRP notes

Active, Standby routers:

• Active: the router forwards packets in a HSRP group
• Standby: the router listens in a HSRP group

Hello packet send 224.0.0.2

election rule:
priority (default is 100) > interface ip (bigger is better)

State machine:

• Initial
• Learn
• Listen
• Speak
• Standby
• Active