Re: Cisco 3845 question

imix, which would include varying packet sizes. If I used 1500 bytes, yes my mbps would've been much higher but that result isn't indicative of a production network, so why bother.

And on that note, a good nite to all...

  
Sent from my Verizon Wireless BlackBerry

-----Original Message-----
From: Roman Rodichev <romangs_at_iementor.com>
Date: Fri, 13 Aug 2010 22:24:02
To: ron.wilkerson_at_gmail.com<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

that was between two LAN interfaces sustained imix? did you try full mtu packets?

Ryan, thanks for the link, I didn't know there was an updated one

Sent from my iPhone

On Aug 13, 2010, at 10:26 PM, ron.wilkerson_at_gmail.com wrote:

> 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
>
> From: Roman Rodichev <romangs_at_iementor.com>
> Date: Fri, 13 Aug 2010 22:16:35 -0500
> 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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>>
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>>
>> --
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Received on Sat Aug 14 2010 - 03:37:28 ART