Setup Guide
Dell EMC Networking OS Behavior: The platform continues to mirror outgoing trac even after an MD participating in spanning tree
protocol (STP) transitions from the forwarding to blocking.
Conguring Port Monitoring
To congure port monitoring, use the following commands.
1 Verify that the intended monitoring port has no conguration other than no shutdown, as shown in the following example.
EXEC Privilege mode
show interface
2 Create a monitoring session using the command monitor session from CONFIGURATION mode, as shown in the following example.
CONFIGURATION mode
monitor session
monitor session type rpm/erpm
type is an optional keyword, required only for rpm and erpm
3 Specify the source and destination port and direction of trac, as shown in the following example.
MONITOR SESSION mode
source
Example of Viewing Port Monitoring Conguration
To display information on currently congured port-monitoring sessions, use the show monitor session command from EXEC
Privilege mode.
DellEMC(conf)#monitor session 0
DellEMC(conf-mon-sess-0)#$source GigabitEthernet 1/1 dest GigabitEthernet 1/2 dir rx
DellEMC(conf-mon-sess-0)#show c
!
monitor session 0
source GigabitEthernet 1/1 destination GigabitEthernet 1/2 direction rx
DellEMC(conf-mon-sess-0)#
DellEMC(conf-mon-sess-0)#do show monitor session
SessID Source Destination Dir Mode Source IP Dest IP DSCP TTL Drop Rate
Gre-Protocol FcMonitor
------ ------ ------------ --- ---- --------- -------- ---- --- ---- ----
----------- ---------
0 Gi 1/1 Gi 1/2 rx Port 0.0.0.0 0.0.0.0 0 0 No N/
A N/A No
DellEMC(conf)#monitor session 0
DellEMC(conf-mon-sess-0)#source po 10 dest ten 1/2 dir rx
DellEMC(conf-mon-sess-0)#do show monitor session
SessID Source Destination Dir Mode Source IP Dest IP DSCP TTL Drop
Rate Gre-Protocol FcMonitor
------ ------ ----------- --- ---- --------- -------- ---- --- ----
---- ----------- ---------
0 Gi 1/1 Gi 1/2 rx Port 0.0.0.0 0.0.0.0 0 0 No N/
A N/A No
0 Po 10 Gi 1/2 rx Port 0.0.0.0 0.0.0.0 0 0 No N/
A N/A No
DellEMC(conf)#monitor session 1
DellEMC(conf-mon-sess-1)#source vl 40 dest ten 1/3 dir rx
DellEMC(conf-mon-sess-1)#flow-based enable
DellEMC(conf-mon-sess-1)#exit
DellEMC(conf)#do show monitor session
SessID Source Destination Dir Mode Source IP Dest IP DSCP TTL Drop Rate
Gre-Protocol FcMonitor
------ ------ ----------- --- ---- --------- -------- ---- --- ---- ----
----------- ---------
0 Gi 1/1 Gi 1/2 rx Port 0.0.0.0 0.0.0.0 0 0 No N/
654
Port Monitoring