07-28-2025 02:47 AM
Hello
I am currently using FNF with C6500 router with BGP activated on it.
on C6500 I can collect BGP AS info using Netflow flow record "collect routing source as 4-octet" command
We have migrated our C6500 towards C9500; I configured FNF on it
the command "collect routing source as 4-octet" is STILL accepted
but when configured , my collector does NOT recover NF record form my C9500.
when I removed this command, I correctly receive the NF record on my collector (without any collector modification).
So my questions are
- is this command supported on C9500 ios7.3.3 (or later) ?
- is the reply the same on C9500(NOT X) and C9300 ?
- is there so any possibility to colelct as in teh AS path of the BGP route ?
regards
collect routing source as 4-octet
07-28-2025 03:30 AM
match routing as <<- did you try this
MHM
07-28-2025 07:55 AM
llo
thanks for reply but
match (key field) for routing allows only the following options so NO AS
-LSW-C02(config-flow-record)#match routing ?
vrf VRF routing attributes
-LSW-C02(config-flow-record)#match routing vrf ?
input VRF ID for incoming packet
-LSW-C02(config-flow-record)#match routing ?
vrf VRF routing attributes
-LSW-C02(config-flow-record)#match routing vrf ?
input VRF ID for incoming packet
-LSW-C02(config-flow-record)#match routing vrf input ?
<cr> <cr>
-LSW-C02(config-flow-record)#
furthermore, for me , I think that "AS" is a NON key field parameters and shall be find into collect command
do under the collect routing part, but there no more possibility to type collect routing AS
ILM-LSW-C02(config-flow-record)#collect routing ?
multicast Multicast routing attributes
next-hop Information regarding the next hop
ILM-LSW-C02(config-flow-record)#collect routing
so it seems to me it is NOT anymore possible to collect BSG receive AS for the flow we receive on a Cat9000 equipment.
> Did someone else arrive to teh same conclusion ??
regards
07-28-2025 07:56 AM
Let me check again
Thanks for waiting
MHM
07-28-2025 08:47 AM
hello / i did previous test on C9300 and on that platform flow collect routing as is not suppoted //
I have to redo the test on C9500µ
so please wait // i will perform this additional test tomorrow on C9500 and I wil come back to you
thnkas
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