Re: Cisco 3845 question

From: <ron.wilkerson_at_gmail.com>
Date: Sat, 14 Aug 2010 03:26:31 +0000

Over 3 yrs ago, so if memory is correct, what I tested was-
~90mbps without vpn
~50-60 with vpn
imix
Sent from my Verizon Wireless BlackBerry

-----Original Message-----
From: Roman Rodichev <romangs_at_iementor.com>
Date: Fri, 13 Aug 2010 22:16:35
To: ron wilkerson<ron.wilkerson_at_gmail.com>
Cc: Grammer, Christopher<cgrammer_at_essilorusa.com>; ccielab_at_groupstudy.com<ccielab_at_groupstudy.com>
Subject: Re: Cisco 3845 question

just curious for my own good, what throughput rate (without VPN) you found 3845 to have?

Sent from my iPhone

On Aug 13, 2010, at 10:13 PM, ron wilkerson <ron.wilkerson_at_gmail.com> wrote:

> actually, specific to the 3845, i based my numbers by testing the box myself.
> the nubmers provided by cisco specific to general performance and vpn performance don't even come close to what i saw when i tested this box over 3 yrs ago. had to upgrade to a 7200vxr.
>
> but i do know others who use the 3845 for rates that i wouldn't...that's why i said milage varies as conditions are differnent for everyone.
>
>
>
> On Fri, Aug 13, 2010 at 11:08 PM, Roman Rodichev <romangs_at_iementor.com> wrote:
> what numbers do you base it on?
>
> Sent from my iPhone
>
> On Aug 13, 2010, at 10:06 PM, ron wilkerson <ron.wilkerson_at_gmail.com> wrote:
>
>> that old/famous pdf?
>> yikes...definitely wouldn't base my hardware selection based on those numbers.
>>
>> but everyone's milage varies
>> On Fri, Aug 13, 2010 at 10:24 PM, Roman Rodichev <romangs_at_iementor.com> wrote:
>> 3845 should support 256Mbps of throughput
>>
>> http://www.iementor.com/Cisco_routing_performance.pdf
>>
>>
>>
>>
>> Roman Rodichev
>> 6xCCIE #7927 (R&S, Security, Voice, Storage, Service Provider, Wireless)
>> Instructor, Content Developer, CEO
>> ieMentor Corporation
>> http://www.iementor.com
>> Y!M: roman7927
>>
>> On Aug 13, 2010, at 9:19 PM, ron wilkerson wrote:
>>
>> > i think you're misreading the info.
>> > it states that the 3845 will support full rate ds-3 with services and that
>> > it supports a maximum of 2 ds-3's. they are two different things.
>> > basically, it is not stating that it will support 90mb at line rate with
>> > services. will it support 2 ds-3's, yes. does it support 1 ds-3 at line
>> > rate with services, yes. but it won't support 90mb with services.
>> >
>> > i'd never put more than a ds-3 wtih vpn, qos, etc. on a 3845..
>> >
>> > ron
>> >
>> > On Fri, Aug 13, 2010 at 8:28 PM, Grammer, Christopher <
>> > cgrammer_at_essilorusa.com> wrote:
>> >
>> >> Here is the doc I was referring to:
>> >>
>> >> http://www.cisco.com/en/US/prod/collateral/modules/ps2797/ps4909/product_data_sheet09186a008010fba2.html
>> >>
>> >>
>> >> It states that the 3845 can support 2 DS3s at full line rate with
>> >> concurrent
>> >> services.
>> >>
>> >> Chris
>> >>
>> >>
>> >>
>> >> On Fri, Aug 13, 2010 at 6:52 PM, Kambiz Agahian <aussiecert_at_gmail.com
>> >>> wrote:
>> >>
>> >>> Jeff,
>> >>>
>> >>> This configuration if you don't have any "dodgy" stuff like process
>> >>> switching operations or buggy functions should not hit 90%. Go over your
>> >>> config and list of your processes and if no suspicious thing is seen open
>> >> a
>> >>> case with TAC. Bear in mind, high CPU utilization is "one" of the major
>> >>> symptoms of potential bugs. There are some nice articles on cisco.com on
>> >>> this.
>> >>>
>> >>> In regards to the upgrade plan, since at this stage we have no idea about
>> >>> the nature of the traffic and possible unforeseen issues, I'd consider a
>> >>> maintenance window and a neat proof of concept pod (if you don't have to
>> >>> don't include all your sites if you have hub/spoke); make sure you have a
>> >>> well defined roll back plan and if we're talking about a mission critical
>> >>> network you might wish to get TAC involved.
>> >>>
>> >>> Anyway, I'd use all the services that I pay for :) just to make 100% the
>> >>> best service is delivered to my customers.
>> >>>
>> >>> Kambiz Agahian
>> >>>
>> >>> CCIE Instructor/Consultant
>> >>> M.Eng Telecom, CCIE# 25341, CCSI# 33326, MCSE, MCSA
>> >>>
>> >>>
>> >>>
>> >>> On Fri, Aug 13, 2010 at 3:12 PM, Biggs, Jeff (M/CIO/BIE)
>> >>> <JBiggs_at_usaid.gov>wrote:
>> >>>
>> >>>> Anyone seeing any issues with a 3845 chassis running two DS-3 modules?
>> >>>>
>> >>>> We have one of the DS-3's occasionally hit 40mb and causes the CPU on
>> >> the
>> >>>> router to hit 90% plus.
>> >>>>
>> >>>> Running 12.4(23) AdvEnterprise with 768Mb of memory.
>> >>>>
>> >>>> Cisco 3845 (revision 1.0) with 745472K/40960K bytes of memory.
>> >>>> 4 FastEthernet interfaces
>> >>>> 2 Gigabit Ethernet interfaces
>> >>>> 2 Serial interfaces
>> >>>> 1 Virtual Private Network (VPN) Module
>> >>>> 2 Subrate T3/E3 ports
>> >>>> DRAM configuration is 64 bits wide with parity enabled.
>> >>>> 479K bytes of NVRAM.
>> >>>> 255488K bytes of ATA System CompactFlash (Read/Write)
>> >>>>
>> >>>> Running NETFLOW (v5) and some LLQ, but that should not drive this box
>> >>> into
>> >>>> meltdown.
>> >>>> Any thoughts?
>> >>>>
>> >>>> Jeffrey Biggs
>> >>>> CCIE #21127 (R&S)
>> >>>>
>> >>>>
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>> >>
>> >
>> >
>> > --
>> > stop talking
>> >
>> >
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>> stop talking
>
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>
> --
> stop talking

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Received on Sat Aug 14 2010 - 03:26:31 ART

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