Re: Cisco G2 ISR WAN performance of 1Gbps?

was this for moi or andy to answer?

On Fri, Nov 20, 2009 at 11:33 AM, Tony Varriale
<tvarriale_at_flamboyaninc.com>wrote:

> Where do you see 100% CPU utilization mentioned?
>
> tv
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> Andy
> Reid
> Sent: Friday, November 20, 2009 9:17 AM
> To: ron.wilkerson_at_gmail.com
> Cc: Azhar Mirza; Cisco certification
> Subject: Re: Cisco G2 ISR WAN performance of 1Gbps?
>
> Hi Ron,
>
> Of course. Several studies have shown that the 1002 can get near 1Gbps
> throughput, but with no services running and 100% CPU utilization. In
> the real world you would not want to be stressing out the hardware to
> that extent. Example study:
> http://networking.ventrefamily.com/asr-ethernet-overhead
>
> In comparison, the 1006 can achieve 10Gbps throughput.
>
> http://www.cisco.com/en/US/prod/collateral/routers/ps9343/ASR_1006_Summary_R
> eport__as_of_1100_02Jun08.pdf<http://www.cisco.com/en/US/prod/collateral/routers/ps9343/ASR_1006_Summary_R%0Aeport__as_of_1100_02Jun08.pdf>
>
> If there is a real requirement for 1-10Gbps throughput then I recommend
> the 1004 or 1006 to my clients. This is typically a requirement at a
> medium to large DC, whereas the remote sites are usually connected by a
> WAN link anywhere between an 256Kbps ADSL to a 100Mbps Ethernet circuit.
> For these sites, WAN throughput is easily managed by a 800 series or ISR
> router depending upon size of link, number of users, applications, etc.
>
> The only times I need to set expectations is when the client has a fiber
> connection, that terminates at 1Gbps on the ISR, as the router is never
> going to reach anywhere near that level of throughput.
>
> regards Andy
>
> ron.wilkerson_at_gmail.com wrote:
> > Can you provide thoughts on the 1002 and why you advise against it?
> >
> > Thanks.
> >
> > -----Original Message-----
> > From: Andy Reid <ccie_at_reid.it>
> > Date: Fri, 20 Nov 2009 17:51:31
> > To: Azhar Mirza<azhar.mirza_at_netservicesplc.com>
> > Cc: Cisco certification<ccielab_at_groupstudy.com>
> > Subject: Re: Cisco G2 ISR WAN performance of 1Gbps?
> >
> > Hi Azhar,
> >
> > The highest spec ISR G2 - 3945 - can handle 150Mbps of real throughput
> > with all services turned on. If you require true Gigabit throughput then
> > I suggest you look at the Cisco ASR 1000's, and not the small one,
> > equipped with an appropriate SIP/SPA module.
> > Remember that the ISR's are software routers.
> >
> > regards Andy
> >
> > Azhar Mirza wrote:
> >
> >> Experts,
> >>
> >> I have got one question if anyone could clarify please.
> >>
> >> Are the new G2 ISRs 29xx & 39xx capable of handling 1Gbps WAN throughput
> using HWIC-1GE-SFP, as 28xx/38xx had limitation *** (see below) of max
> 500Mbps due to HWIC interface bus speed limitation ?
> >>
> >> G2 supports EHWICs; What are the new EHWICs available? Is there any
> EHWICs for 1Gbps?
> >>
> >>
> >> What is the best (lowest cost) Cisco router that can support 1Gbps
> Ethernet WAN? Do I need ASR for this? I need three 1Gbps interfaces.
> >>
> >>
> >> ----------------------------------
> >> *** HWIC-1GE-SFP FAQ says:
> >>
>
> http://www.cisco.com/en/US/prod/collateral/routers/ps5854/prod_qas0900aecd80
> 169bf0_ps5949_Products_Q_and_A_Item.html<http://www.cisco.com/en/US/prod/collateral/routers/ps5854/prod_qas0900aecd80%0A169bf0_ps5949_Products_Q_and_A_Item.html>
> >>
> >> Q. Q: What is the maximum throughput on the Gigabit Ethernet HWIC?
> >> A: A: The HWIC bus interface is limited to 400 Mbps of full duplex. The
> actual throughput of the Gigabit Ethernet HWIC is limited by the throughput
> of individual platforms. Under bidirectional traffic of 1518 bytes or
> larger, the Gigabit Ethernet HWIC can support up to an aggregate of 350
> Mbps
> on Cisco 2811 and 2821 routers, 400 Mbps on Cisco 2851 routers, and 500
> Mbps
> on Cisco 3800 Series platforms.
> >> ----------------------------------
> >>
> >> Thanks and Kind Regards,
> >>
> >>
> >> Azhar Mirza
> >> Head of Pre Sales
> >>
> >> netSERVICES
> >> Waters Edge Business Park
> >> Modwen Road
> >> Manchester, M5 3EZ
> >>
> >> e: azhar.mirza_at_netservicesplc.com
> >> w: www.netservicesplc.com
> >>
> >> Please consider the Environment before printing this email or consider
> electronic distribution.
> >>
> >>
> >> --------
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