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RSPAN on Nexus 7K

rajesh halvi
Level 1
Level 1

Team,

   We have 2 x N7K in VPC as cores and a layer 2 access layer C9300 switch connected to these N7Ks redundant to each other. I want to capture the wireshark of N7K uplinks interfaces towards this access switch and monitor PC is connected to access switch. I want to use RSPAN. below is the configuration. is this configuration works ? and we are capturing ingress and egress traffic of uplinks (et1/1, po999) and sending the capture over RSPAN vlan on same interfaces. will it cause any choke in uplinks? 

N7K switch: Core1 and core2 - Note Po999 is in VPC
------------------------------------------------------
Conf t
Vlan 977
remote-span
exit
monitor session 1 source interface Eth1/1, Po999
monitor session 1 destination remote vlan 977

!allow remote span vlan on PO uplink towards access switch
int po999
switchport trunk allowed vlan add 977


Access switch - monitor PC connected to port Gi1/0/1
-----------------------------------------------
Conf t
Vlan 977
remote-span
exit

!allow remote span vlan in PO uplink towards core switch
int po1
switchport trunk allowed vlan add 977
!
monitor session 1 source remote vlan 977
monitor session 1 destination interface Gi1/0/1

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