Users Guide

EXEC mode
EXEC Privilege mode
show run monitor session
Dell#show run monitor session
!
monitor multicast-queue 7
Dell#
Enabling Flow-Based Monitoring
Flow-based monitoring conserves bandwidth by monitoring only specied trac instead of all trac on the interface. This feature is
particularly useful when looking for malicious trac. It is available for Layer 2 and Layer 3 ingress trac. You can specify trac using
standard or extended access-lists.
NOTE: Flow-based monitoring is not supported for egress trac.
1 Enable ow-based monitoring for a monitoring session.
MONITOR SESSION mode
flow-based enable
2 Dene IP access-list rules that include the keyword monitor. For port monitoring, Dell Networking OS only considers trac matching
rules with the keyword monitor.
CONFIGURATION mode
ip access-list
Refer to Access Control Lists (ACLs).
3 Apply the ACL to the monitored port.
INTERFACE mode
ip access-group access-list
Example of the flow-based enable Command
To view an access-list that you applied to an interface, use the show ip accounting access-list command from EXEC Privilege
mode.
Dell(conf)#monitor session 0
Dell(conf-mon-sess-0)#flow-based enable
Dell(conf)#
ip access-list ext testflow
Dell(config-ext-nacl)#seq 5 permit icmp any any count bytes monitor 40
Dell(config-ext-nacl)#seq 10 permit ip 102.1.1.0/24 any count bytes monitor 40
Dell(config-ext-nacl)#seq 15 deny udp any any count bytes
Dell(config-ext-nacl)#seq 20 deny tcp any any count bytes
Dell(config-ext-nacl)#exit
Dell(conf)#interface tengigabitethernet 1/1/1
Dell(conf-if-te-1/1/1)#
ip access-group testflow in
Dell(conf-if-te-1/1/1)#show config
!
interface TenGigabitEthernet 1/1/1
ip address 10.11.1.254/24
ip access-group testflow in
shutdown
Dell(conf-if-te-1/1/1)#exit
Dell(conf)#do show ip accounting access-list testflow
!
Extended Ingress IP access list testflow on TenGigabitEthernet 1/1/1
Total cam count 4
seq 5 permit icmp any any 40 monitor 40 count bytes (0 packets 0 bytes)
seq 10 permit ip 102.1.1.0/24 any monitor 40 count bytes (0 packets 0 bytes)
Port Monitoring
649