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CHAPTER 24: NETWORK ASSURANCE (IP SLA (Delay, Jitter, Packet loss, Packet…
CHAPTER 24:
NETWORK ASSURANCE
Network Diagnostic Tools
ping
repeat
source
size
traceroute
Default probe count: 3
Default maximum TTL: 30
syslog
0, emergencies
1, alerts
2, critical
3, errors
4, warning
5, notifications
6, informational
7, debugging
Debugging
Conditional Debugging
Disable
'logging console'
SNMP
Versions
SNMPv1
(noAuthNoPriv)
SNMPv2c
(AuthNoPriv)
SNMPv3
(authPriv)
Operations
SNMP Agent to Network Device
get-request
get-next-request
get-bulk.request
set-request
MIB SNMP Agent to NMS
get-response
traps
NetFlow
Components
NetFlow Data Capture
ip flow-export version 9
ip flow-export destination [
ip address
]
NetFlow Data Export
ip flow [ingress|egress]
Flow
Unidirectional traffic stream
Source/Destination IP Address
Source/Destination Port Number
Layer 3 protocol type
ToS
Input interface
Flexible NetFlow
Flow Records
flow record [NAME]
match [KEY FIELD]
collect [NON-KEY FIELD]
Flow Monitors
flow monitor [NAME]
record [NAME]
cache active timeout [seconds]
exporter [NAME]
interface [type/number]
ip flow monitor [NAME] [input|output]
Flow Exporters
flow exporter [NAME]
destination [NF COLLECTOR IP]
export-protocol netflow-v9
transport UDP 999
Flow Samplers
SPAN
Local SPAN
RSPAN
ERSPAN
ERSPAN Source Session
ERSPAN Destination Session
IP SLA
Delay
Jitter
Packet loss
Packet sequencing
Path
Connectivity
Server or website download time
Voice quality scores
DNA Center Assurance Workflow
Network Time Travel
Path Trace
Client 360