Dell PowerSwitch S4820T 9.50.1 Configuration Guide for the S4820T System - Page 149
Enabling Flow-Based Monitoring, MONITOR SESSION mode
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configuration to the ACL agent whenever the ACL agent is registered with the port mirroring application or when flow-based monitoring is enabled. The show monitor session session-id command has been enhanced to display the Type field in the output, which indicates whether a particular session is enabled for flow-monitoring. Example Output of the show Command Dell(conf-mon-sess-0)#do show monitor session 0 SessID ------ 0 A Source -----Te 0/0 Destination ----------- Te 0/2 Dir Mode Source IP rx Flow N/A Dest IP -------- N/ The show config command has been modified to display monitoring configuration in a particular session. Example Output of the show Command (conf-mon-sess-11)#show config ! monitor session 11 flow-based enable source GigabitEthernet 13/0 destination GigabitEthernet 13/1 direction both The show ip | mac | ipv6 accounting commands have been enhanced to display whether monitoring is enabled for traffic that matches with the rules of the specific ACL. Example Output of the show Command Dell# show ip accounting access-list ! Extended Ingress IP access list kar on GigabitEthernet 10/0 Total cam count 1 seq 5 permit ip 192.168.20.0/24 173.168.20.0/24 monitor Dell#show ipv6 accounting access-list ! Ingress IPv6 access list kar on GigabitEthernet 10/0 Total cam count 1 seq 5 permit ipv6 22::/24 33::/24 monitor Enabling Flow-Based Monitoring Flow-based monitoring is supported on the S4820T platform. Flow-based monitoring conserves bandwidth by monitoring only specified traffic instead of all traffic on the interface. This feature is particularly useful when looking for malicious traffic. It is available for Layer 2 and Layer 3 ingress and egress traffic. You can specify traffic using standard or extended access-lists. 1. Enable flow-based monitoring for a monitoring session. MONITOR SESSION mode flow-based enable 2. Define access-list rules that include the keyword monitor. Dell Networking OS only considers port monitoring traffic that matches rules with the keyword monitor. Access Control Lists (ACLs) 149
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