Dell Force10 S25N-S50N FTOS Configuration Guide FTOS 8.4.2.7 E-Series TeraScal - Page 821

Figure 38-8. Configuring Flow-based Monitoring FTOS(conf)#monitor session 0 FTOS(conf-mon-sess-0)#flow-based enable FTOS(conf)#ip access-list ext testflow FTOS(config-ext-nacl)#seq 5 permit icmp any any count bytes monitor FTOS(config-ext-nacl)#seq 10 permit ip 102.1.1.0/24 any count bytes monitor FTOS(config-ext-nacl)#seq 15 deny udp any any count bytes FTOS(config-ext-nacl)#seq 20 deny tcp any any count bytes FTOS(config-ext-nacl)#exit FTOS(conf)#interface gig 1/1 FTOS(conf-if-gi-1/1)#ip access-group testflow in FTOS(conf-if-gi-1/1)#show config ! interface GigabitEthernet 1/1 ip address 10.11.1.254/24 ip access-group testflow in shutdown FTOS(conf-if-gi-1/1)#exit FTOS(conf)#do show ip accounting access-list testflow ! Extended Ingress IP access list testflow on GigabitEthernet 1/1 Total cam count 4 seq 5 permit icmp any any monitor count bytes (0 packets 0 bytes) seq 10 permit ip 102.1.1.0/24 any monitor 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) FTOS(conf)#do show monitor session 0 SessionID Source Destination Direction Mode --------- ------ ----------- --------- ---- 0 Gi 1/1 Gi 1/2 rx interface Type ---Flow-based Remote Port Mirroring e Remote Port Mirroring is supported on platforms: x. 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 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. In a remote-port mirroring session, monitored traffic is tagged with a VLAN ID and switched on a user-defined, non-routable L2 VLAN. The VLAN is reserved in the network to carry only mirrored traffic, which is forwarded on all egress ports of the VLAN. Each intermediate switch that participates in the transport of mirrored traffic must be configured with the reserved L2 VLAN. Remote port mirroring supports mirroring sessions in which multiple source and destination ports are distributed across multiple switches. Remote Port Mirroring Example Figure 38-9 shows an example of how remote port mirroring works. Port Monitoring | 821