01-19-2012 12:55 AM
Hi,
i want to enable netflow for multicast on my 6509-E with IOS s72033-advipservicesk9_wan-mz.122-33.SXI2a. I've checked the ios via software advisor to be sure that this feature ist supported:
Minimum Compatible Release 5 Additional Software
12.2SXJ Early Deployment View View
View 512 512 N/A 12.2(33)SXJ
s72033-advipservicesk9-mz.12.2-33.SXJ 12.2(33)SXJ N/A
12.2SXI Early Deployment View View
View 512 512 N/A 12.2(33)SXI1
s72033-advipservicesk9-mz.12.2-33.SXI1 12.2(33)SXI
I've used the command "ip multicast netflow output-counters", but that is not enough, i guess. It is required to use further interface commands like "ip multicast netflow....", isn't it? But this commands are not available:
Cisco6509(config-if)#ip multicast ?
boundary Boundary for administratively scoped multicast addresses
helper-map Broadcast to Multicast map OR Multicast to ip-address map
limit Limit multicast mroute state
rate-limit Rate limit multicast data packets
ttl-threshold TTL threshold for multicast packetscore1(config-if)#ip multicast ?
boundary Boundary for administratively scoped multicast addresses
helper-map Broadcast to Multicast map OR Multicast to ip-address map
limit Limit multicast mroute state
rate-limit Rate limit multicast data packets
ttl-threshold TTL threshold for multicast packets
Does anybody know what is going wrong here?
Thanks,
Stephan
01-21-2012 12:35 PM
from the following document it looks like we only need to add ip flow command on the l3 interface
The ip multicast netflow output-counters enables the calculation of output bytes/packets for an ingress flow.
01-23-2012 06:05 AM
Hi,
thank's for your respond but that command only is not enough, i guess. Additional commands may be necessary like flow-export version 9. There are no multicast flows visible in my collector, but on the switch with the command "sh mls netflow ip multicast flow udp | i 5004" they are. Is it possible that still some command are missing in our ios version, for example the command "mls nde sender version 9" command is not available.
02-06-2012 08:14 AM
Hi,
From 12.2(18)SXF IOS, Multicast IP Traffic exported is supported. Can you enable NetFlow version 9 export (ip flow export version 9) and then configure as per the below doc (This doc advices a different config for NetFlow export with multicast traffic):
Router(config-if)# ip flow ingress Enables NetFlow on the interface.
Router(config-if)# ip multicast netflow {ingress | egress} Enables NetFlow multicast traffic on the specified interface (for MSFC and PFC)
Moreover, please remember that the NetFlow collector also should have thye capability to process NetFlow packets with Multicast traffic. Do check with your NetFlow collector vendor that they support multicast traffic as that can also be a reason on why you do not see multicast traffic info.
Regards,
Don Thomas Jacob
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