[c-nsp] 10Gb+ "Core" w/ Netflow

[Joe Loiacono]

At NASA, we take full netflow from ASR1000s with 5Gbps active on 10Gbps 
links.. No problem. 

Up to 300 flows/sec (with much higher peaks) which may be lower than you 
as we have long running FTP downloads of environmental science data.

We collect with the open-source SiLK software, and use FlowViewer for a 
web front end. 

All kinds of value.



Joe Loiacono




From:   CiscoNSP List <cisconsp_list at hotmail.com>
To:     "cisco-nsp at puck.nether.net" <cisco-nsp at puck.nether.net>
Date:   03/12/2015 07:01 PM
Subject:        [c-nsp] 10Gb+ "Core" w/ Netflow
Sent by:        "cisco-nsp" <cisco-nsp-bounces at puck.nether.net>



Hi Everyone,

We have an (unfortunate) requirement to support legacy services that are 
billed via Netflow....this will change to fixed rate/95th, but it will 
take 12-24months, so our Interpop, IPTransit and Customer Inet tails all 
have to be on equipment that supports Netflow (Currently ASR1K's)

We have seen a huge jump in customer tail "sizes" over the last 6months, 
and can see that the existing 1Gb Interpop links will not be sufficient in 
the short term....Currently, these links are going directly into ASR1K's.

We use ME3600's for L3VPN tails only (As they unfortunately do not support 
Netflow).

After suggestions on an upgrade path from 1G -> 10Gb+ - We can do mulitple 
1Gb links between POP's, and ME3600->ASR1K(For VRF/VPLS traffic), but it 
seems more like a bandaid solution, and we are limited at some POP's with 
port density (i.e. ASR1001's).

Do we stick with ASR1K's, but larger ones (1004, 1006), so we can install 
single port 10Gb SPA's...or something else that supports Netflow, but 
higher density 10Gb...or bandaid (Multiple 1Gb ports) until we no longer 
"require" Netflow for billing...If netflow wasnt in the equation, what 
platform would be recommended for 10Gb+ "Core" (i.e. push the ASR1K's out 
to IPTransit/Peering, ME's for L3/L2 termination(PE), but what for the 
"core"(P)?

Thanks in advance for any suggestions.
  
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