This blog was originally started to better help me understand the technologies in the CCIE R&S blueprint; after completing the R&S track I have decided to transition the blog into a technology blog.
CCIE #29033

This blog will continue to include questions, troubleshooting scenarios, and references to existing and new technologies but will grow to include a variety of different platforms and technologies. Currently I have created over 185 questions/answers in regards to the CCIE R&S track!! Note: answers are in the comment field or within "Read More" section.

You can also follow me on twitter @FE80CC1E

Wednesday, July 27, 2011


Nexus 7000/5000 SPAN Sessions
SPAN Session Limit - 18

Nexus 1000V
SPAN Session Limit (SPAN and ERSPAN) - 64

Nexus 5000 SPAN Sessions
Can SPAN Ethernet,Fibre Channel,PortChannel,SAN PortChannel,VLAN,VSAN (Virtual Storage Area Network)

Nexus 7000 Example:
Create a SPAN Monitor Port for the Analyzer
(config)#interface ethernet 1/1
(config-if)#switchport monitor

If the system is an IDS/IPS it may required the ability to learn the MAC address of the device. Include the following
(config-if)#switchport monitor ingress learning

Configure Monitor Session 
(config)#monitor session 1
(config-monitor)#source vlan 10 rx
(config-monitor)#source vlan 20 both
(config-monitor)#source vlan 30 tx
(config-monitor)#destination interface ethernet 1/1
(config-monitor)#description SPANNING SESSION 1
(config-monitor)#no shut

You must no shut the monitor session


Post a Comment