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:jarruda-cnsp@jarruda.com] 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).
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. Phil 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:jarruda-cnsp@jarruda.com] 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).
"Lee, Steven (NSG Malaysia)" <kin-wei.lee@hp.com> wrote on 10/10/2008 01:20:30 PM:
Does anyone aware of the sampled netflow accuracy?
If you mean how well you can extrapolate "real" numbers from "samples" by multiplying by the inverse sample rate, my (initial and somewhat limited) testing showed a surprising correlation. A pretty good first approximation. Joe
participants (3)
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Joe Loiacono -
Lee, Steven (NSG Malaysia) -
Phil Bedard