[c-nsp] 7200+SRC, Netflow fast path no longer supported?

[David Freedman]

Assuming this is a bug but can't find it documented anywhere , either in release notes or bugtool, 

Upgrading to SRC on 7200 causes all packets on interfaces configured with "ip flow ingress" to start punting to CPU, it considers netflow an "unsupported feature"

IP    Process   70442014 2336639637   62840525 2296471137
 Cache misses          0
 Fast         77      14142          0          0
 Auton/SSE          0          0          0          0


RP PAS TTL expired                        0          0      90139
RP PAS IP options set                     0          0          1
RP PAS Routed to Null0                   10          0          0
RP PAS Features                           0  118182453          0
RP PAS Total                            568  118183210      90222
All    Total                            568  236366797      90222

At first I thought this could be CSCsh05677 ("ip flow-cache mpls label-positions 1" hack) 
but it turns out not to be.

Has anybody else here seen the same?

------------------------------------------------
David Freedman
Group Network Engineering 
Claranet Limited
http://www.clara.net