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MICE-DISCUSS  May 2011

MICE-DISCUSS May 2011

Subject:

Re: Akamai Traffic on MICE

From:

David Farmer <[log in to unmask]>

Reply-To:

MICE Discuss <[log in to unmask]>

Date:

Fri, 20 May 2011 10:38:36 -0500

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (88 lines)

I was planing to make that part of the discussion with Akamai.

However, even without MICE we were going to need more servers for next 
fall.  It seems our servers were shedding demand much of the spring. 
Since school is out, our demand has dropped by about 50% over the last 2 
weeks, and is down about 65% from our Spring peak about 6 weeks ago.

On 5/20/11 10:23 CDT, Owen DeLong wrote:
> Is there any way we can use the amount of U/Akamai traffic being pointed
> at MICE as an incentive for Akamai to come to MICE themselves?
>
> Owen
>
> On May 20, 2011, at 8:12 AM, David Farmer wrote:
>
>> As was noted we installed a 2nd GigE between the two switches yesterday.  Things are looked good last night we peaked at 1.7Gbps most of that coming from the U's Akamai Stack.  Akamai tells me we are maxing out our servers again, it looks like we were maxing them out most of the spring anyway.
>>
>> The Akamai servers are putting out a little less than 2G from about 7am to 11pm.
>> I believe we are seeing more traffic in the evening going to MICE because most of the other Gigapop networks have more of a business day demand curve, so Akamai serves more of the demand out of MICE in the evening as demand from the Gigapop networks slack off.
>>
>> So I think things are much better now, we should get the new switches installed and people moved over but we shouldn't have to rush it. The University will work with Akamai to get more servers over the summer, but I would hope we would have everyone moved over to the juniper switches long before that happens.
>>
>> On 5/19/11 09:56 CDT, David Farmer wrote:
>>> It looks like Akamai has found a sweet spot they tend to do that, the
>>> link between the switches peaked up to about 850 and backed off and is
>>> hovering abut 650Mbps for the last hour or so. From what I've seen in
>>> the past for Amakai it will probably do that the rest of the day.
>>>
>>> On 5/19/11 07:23 CDT, David Farmer wrote:
>>>> The 10G Akamai stack at the University is having an affect.
>>>>
>>>> The University turned up routing from the GigaPOP to MICE on its 10G
>>>> link Tuesday around 8pm. The new paths were also announced to the Akamai
>>>> route collector around that time too. Akamai started using these new
>>>> paths around 1:30 in the afternoon on Wednesday. The University's 10G
>>>> link peaked a little over 1G around 9:30pm last night. The bottleneck is
>>>> the 1G link between the CNS 10G switch and the 4500. It was saturated
>>>> from about 6:30pm to 9:30pm at about 950Mbps.
>>>>
>>>> Some of us are organizing to rectify the situation ASAP. There are some
>>>> workarounds that could help in the very short-term, yet this morning,
>>>> and we are looking to get the new Juniper switches with 10G up-links
>>>> installed ASAP However, the earliest that can happen it this afternoon,
>>>> as the switches are down in Mankato with Jay. There is a plan to get
>>>> them up to 511 by mid-afternoon.
>>>>
>>>> Also I'll be watching the links and can modify our announcement to the
>>>> Akamai route collector if necessary. Things are going to be fluid today.
>>>>
>>>> I'll just say that this is the kind of problem I like to see, if you are
>>>> going to have to deal with any problem. That is the problem of over
>>>> succeeding.
>>
>> --
>> ===============================================
>> David Farmer               Email:[log in to unmask]
>> Networking&  Telecommunication Services
>> Office of Information Technology
>> University of Minnesota	
>> 2218 University Ave SE	    Phone: 612-626-0815
>> Minneapolis, MN 55414-3029   Cell: 612-812-9952
>> ===============================================
>>
>> ########################################################################
>>
>> To unsubscribe from the MICE-DISCUSS list, click the following link:
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>
> ########################################################################
>
> To unsubscribe from the MICE-DISCUSS list, click the following link:
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-- 
===============================================
David Farmer               Email:[log in to unmask]
Networking & Telecommunication Services
Office of Information Technology
University of Minnesota	
2218 University Ave SE	    Phone: 612-626-0815
Minneapolis, MN 55414-3029   Cell: 612-812-9952
===============================================

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