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) This message is confidential and is intended only for the named recipients, and may contain information that is privileged, or exempt from disclosure under applicable law. If you are not the intended recipients of the email, you are hereby notified that the dissemination, distribution or copying of this e-mail or its contents is strictly prohibited. If you received this e-mail in error, please notify the sender at either the e-mail address or the phone number above and delete this e-mail from your computer. ________________________________________ From: Darwin Santana [[email protected]] 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 <[email protected]> > 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 < > [email protected]> wrote: > >> Hi All, >> >> Can I handle a 400 Mbps or up the bandwidth on the Router 3925E? >> >> Best Regards, >> >> Darwin >> _______________________________________________ >> cisco-nsp mailing list [email protected] >> https://puck.nether.net/mailman/listinfo/cisco-nsp >> archive at http://puck.nether.net/pipermail/cisco-nsp/ >> > > > > -- > Bill Blackford > > Logged into reality and abusing my sudo privileges..... > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
