Dell PowerSwitch S4820T Configuration Guide for the S4820T System 9.112.1P1 - Page 675

MONITOR SESSION mode flow-based enable 2 Define IP access-list rules that include the keyword monitor. For port monitoring, Dell Networking OS only considers traffic 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 53 Dell(config-ext-nacl)#seq 10 permit ip 102.1.1.0/24 any count bytes monitor 53 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 Dell(conf-if-te-1/1)#ip access-group testflow in Dell(conf-if-te-1/1)#show config ! interface TenGigabitEthernet 1/1 ip address 10.11.1.254/24 ip access-group testflow in shutdown Dell(conf-if-te-1/1)#exit Dell(conf)#do show ip accounting access-list testflow ! Extended Ingress IP access list testflow on TenGigabitEthernet 1/1 Total cam count 4 seq 5 permit icmp any any 53 monitor 53 count bytes (0 packets 0 bytes) seq 10 permit ip 102.1.1.0/24 any monitor 53 count bytes (0 packets 0 bytes) seq 15 deny udp any any count bytes (0 packets 0 bytes) seq 20 deny tcp any any count bytes (0 packets 0 bytes) Dell(conf)#do show monitor session 0 SessionID Source Destination Direction Mode Type Source IP Dest IP DSCP TTL Drop Rate Gre-Protocol FcMonitor ---- 0 Te 1/1 Te 1/2 rx interface Flow-based 0.0.0.0 0.0.0.0 0 0 No N/A N/A yes Remote Port Mirroring While local port monitoring allows you to monitor traffic from one or more source ports by directing it to a destination port on the same switch/router, remote port mirroring allows you to monitor Layer 2 and Layer 3 ingress and/or egress traffic on multiple source ports on different switches and forward the mirrored traffic to multiple destination ports on different switches. Remote port mirroring helps network administrators monitor and analyze traffic to troubleshoot network problems in a time-saving and efficient way. Port Monitoring 675