What is an IP SLA
A method of measuring service level by sending test traffic
What can an IP SLA measure
o Network delay
o Packet loss
o Jitter
o Voice quality
How is an IP SLA configured
- Ip sla 1
- Icmp-echo
- Timeout 1500
- Frequency 3
- Request-data-size 200
- Global config: Ip sla schedule 1 life forever start-time now
What “show” command will allow you to see the status of actively scheduled IP SLA probes
- Sh ip sla statistics
What does SNMP stand for
simple network management protocol
What is a MIB
library of OIDs for a particular device or set of devices
What is the benefit of software defined network
- Software, central control of the network
* Adapts to an ever-changing environment
What are the 3 types of planes
data
control
mgmt
How does SDN work
SDN moves the control and mgmt. plane to central software controller
What is an SBI southbound interface
- Represents communication between controller and device
What is a NBI northbound interface
- Represents communication between controller and outside programs
What are the types of SDN cisco implements
Traditional SDN ACI application centric infrastructure APIC enterprise module APIC-EM
What is traditional SDN
o Cisco open SDN controller (OSC)
o Supported by a few Nexus switches/Cisco ASR router
o Openflow integration /support
What is ACI
o Data center SDN
o Application focus (mostly VM)
o Users application policy infrastructure controller (APIC)
What is APIC enterprise module
o Redefines SDN by keeping control plane in devices
o Allows expansion through installable apps
o Path trace app
o Path trace ACL analysis tool
