North American Network Operators Group

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Re: Help needed - Cisco Netflow

  • From: Phil Bedard
  • Date: Fri Oct 10 14:17:41 2008

It depends on how many active flows you have at any one time. Also, I don't think the SIP-601 supports full netflow V5 in hardware, only V8, which is aggregated netflow, which may not be what you want. It does do V5/V9 sampled netflow in hardware. The sampled netflow on that platform is better than on say the 6500/7600, so I would just go with that.


On Oct 10, 2008, at 1:20 PM, Lee, Steven (NSG Malaysia) wrote:

Hi all, the LC on 12000 series is 12000-SIP-601 (engine 5) with multiple STM-1 SPA card. As far as I know the engine 5 card cannot do 450Kpps on netflow. Since the STM-1 is mainly for NB-AMR traffic (95%), do you recommend the sampled netflow instead? Does anyone aware of the sampled netflow accuracy?

-----Original Message-----
From: Julio Arruda [mailto:[email protected]]
Sent: Saturday, October 11, 2008 12:43 AM
To: Lee, Steven (NSG Malaysia)
Subject: Re: Help needed - Cisco Netflow

Lee, Steven (NSG Malaysia) wrote:
Hi all, I have a customer who has a MPLS network for E/// Media Gateway (MGW) NB-AMR VoIP traffic. The packet size for the NB-AMR traffic is fixed size 110 bytes. During the high load period, it can reaches 450Kpps on a STM-1 link. The router platform is Cisco 12000 series, can the router generate 100% netflow data with such traffic load? Also can someone suggest a carrier class netflow collector for mobile service provider environment.
Just a quick note..
You may want to post the Line Cards they have...Distinct LC have distinct Netflow capabilities (and impact).