Unicast Flooding :
Reasons:
- Asymetric Routing
- STP TCNs
- Full MAC Table (Attack)
Solutions:
- STP Portfast Feature
- Port Security Feature
- Unknown Unicast and Multicast Flood Control Feature (UUFB,UUFRL,UMFB)
Impact Of Microbursts:
Short Spike - Overwhelms Capacity
Merging 4 Lanes into 3
Impact:
- Delayed/Dropped Packets/Frames
- Congestion on Downstream Systems
- SLA
- Application Failure
Solution:
- QoS
Out Of Orden Packets:
Reasons:
- Multiple Paths (L2/L3)
- Qos Treatment
- Route / Path Problems
Solutions:
- Session Based Path Selection (On Etherchannel, CEF and etc...)
- TCP Reassembly
- Permit on Intermediate Devices (FW)
