[c-nsp] Maximum Throughtput Cisco Router

[Orr, Jeff B.]

If you are doing any type of VPN (DMVPN, SSLVPN, etc.) on your Internet link the router will fall over itself. Also, if you have either a large amount of small packets, or have to decrease your max packet size you will quickly run out of CPU. Finally, if you do any Netflow you will run out of CPU.

If you only doing 400mb of Internet and working with queuing only you would probably be able to get the box to run, however you will have no wiggle room as you will be at capacity day 1. 

Hopefully, your traffic will come in pre-marked with DSCP. You would not have the head room to mark/remark traffic. 

____________________________________
Jeff Orr
Technical Services - Senior Network Engineer
Park National Corporation (AMEX: PRK)

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________________________________________
From: Darwin Santana [dlsy at casainteligente.com.do]
Sent: Thursday, December 26, 2013 2:26 PM
To: Bill Blackford
Cc: cisco-nsp Service Providers
Subject: Re: [c-nsp] Maximum Throughtput Cisco Router

The goal is using the device for Internet Traffic with QoS enable.

What's the difference between sub-rate and line-rate device ?


2013/12/26 Bill Blackford <bblackford at gmail.com>

> A few years back, I went with a pair of ASR1002's.s  1. My traffic was
> 400Mbps and with that particular mix, had lots and lots of small packets.
> Hence, microbursts were enough to make the single 7301 fall over on
> occasion.  2. My traffic was trending on a 150% increase every two years. I
> found it necessary to design for what I need in 3 - 4 years vs. "what I
> need now". In my opinion, if you have that much traffic, don't invest in
> sub-rate devices, go with line-rate. You might discover down the road that
> your traffic may change, as mine did, or you may be compelled to enable
> features you hadn't thought of at purchase time that yield performance
> penalties.
>
>
> On Thu, Dec 26, 2013 at 6:48 AM, Darwin Santana <
> dlsy at casainteligente.com.do> wrote:
>
>> Hi All,
>>
>> Can I handle a 400 Mbps or up the bandwidth on the Router 3925E?
>>
>> Best Regards,
>>
>> Darwin
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>
>
>
> --
> Bill Blackford
>
> Logged into reality and abusing my sudo privileges.....
>