1. CCNP-SWITCHING 300-115 Mohamed Samir YouTube channel Double CCIEs #27042(R/S&SP)

2. Part V: Monitoring Campus Networks

3. Monitor Session

4. Using Local SPAN Switched Port Analyzer (SPAN) to analyze a port
one or more VLANs on the switch, you can identify the VLANs as the
SPAN source called VLAN-based SPAN or VSPAN.

6. Local SPAN Configuration
Switch(config)# monitor session session-number source {interface type member/mod/num | vlan vlan-id}[rx | tx | both]
Switch(config)# monitor session session-number destination interface type
member/mod/num [encapsulation replicate]
Switch(config)# monitor session 1 source interface gigabitethernet1/0/1 both
Switch(config)# monitor session 1 destination interface gigabitethernet1/0/48

7. Remote SPAN

8. Remote SPAN Configuration
@ SW-A
Switch(config)# vlan 99
Switch(config-vlan)# remote-span
Switch(config-vlan)# exit
Switch(config)# monitor session 1 source interface gigabitethernet 1/0/1 both
Switch(config)# monitor session 1 destination remote vlan 99
@ SW-B
@ SW-C
Switch(config)# monitor session 1 source remote vlan 99
Switch(config)# monitor session 1 destination interface gigabitethernet 1/0/48

9. Managing SPAN Sessions
Switch# show monitor
Session 1
Type : Local Session
Source Ports :
Both : Gi1/0/1
Destination Ports : Gi1/0/48
Encapsulation : Native
Ingress : Disabled
Session 2
Type : Remote Source Session
Dest RSPAN VLAN : 99
Switch#

10. Any questions ?

11. Thank you for your time ! 
شكرا
جزاكم الله خير