General
| Type | Duration |
|---|
| MAC Addresses | 5 minutes |
| LSA | 30 minutes |
| ErrDisable Recovery | 300 seconds / 5 minutes |
Protocols
Classic STP Timers
| STP Timer | Duration |
|---|
| Hello | 2 seconds |
| Forward Delay | 15 seconds |
| Max Age | 20 seconds (10*hello) |
OSPF Timers
OSPF Ethernet / Point-to-Point Connection
| Message Type | Duration |
|---|
| Hello | 10 seconds |
| Dead | 40 seconds |
OSPF Non-Broadcast Connection
| Message Type | Duration |
|---|
| Hello | 30 seconds |
| Dead | 120 seconds |
Layer 2 Discovery Protocols
CDP
| Type | Duration |
|---|
| Message | 60 seconds |
| Hold Time | 180 seconds |
LLDP
| Type | Duration |
|---|
| Message | 30 seconds |
| Hold Time | 120 seconds |
| Reinitialization | 2 seconds |