SPAN config in Nexus 9K

[babalao]

Hello,

we are migrating from 7K to 9K.

In the current N7K we have this SPAN config:

monitor session 1
source vlan 20 both
destination interface Ethernet1/5
no shut

monitor session 2
source vlan 20 both
destination interface Ethernet1/6
no shut

But when we try to copy both sessions I get the following error:

monitor session 2
source vlan 20 both <enter>

ERROR: vlan-20: VLAN is a source in another session

And can not copy all the SPAN config from 7K to 9K for this limitation.

Do you guys know any solution? Or any ideas?

Thank you.

Regards.

[Flavio Miranda]

Hi @babalao 

 This is the expected behavior for N9K.

"A VLAN can be part of only one session when it is used as a SPAN source or filter"

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/6-x/system_management/configuration/guide/b_Cisco_Nexus_9000_Series_NX-OS_System_Management_Configuration_Guide/sm_14span.html#con_1177309 

[Javier Acuña]

HI @babalao 

VLANs can be SPAN sources only in the ingress direction.

[M02@rt37]

hello @babalao,

check N9k Guidelines 

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/6-x/system_management/configuration/guide/b_Cisco_Nexus_9000_Series_NX-OS_System_Management_Configuration_Guide/sm_14span.html

[babalao]

Hello,

thank you all.

Yes I saw that , so I can not "replicate" the same as they have in the 7K.

Do you guys know any workaround to "replicate" the same result?

thank you

Regards

[M02@rt37]

@babalao 

combine all in one monitor session on your N9K.

monitor session 1
source vlan 20 both
destination interface Ethernet1/5
destination interface Ethernet1/6
no shut

[babalao]

Hello,

I tried that but I did not let have 2 destination interfsces on same SPAN session.

So I think we can not replicate the config, I am correct?

Thank you!

Best Regards

[babalao]

Any ideas to do the same as 7K? or is it just not possible?

thanks!