From: dave dave (funccie@gmail.com)
Date: Sat Mar 14 2009 - 02:15:10 ARST
Hi Joe,
I think you are right on on consultant paid point, but what about us who get
only montly paid & cant priovide better solution (as which not exists on QoS
for 6500 ).
I think cisco has to work a lot on swithing QoS to make it unique in config
on all platform as well make it better on 6500, which hopefully will not be
choice in next few year once Juniper/huwai/AL start working on switching
more hard. Alcate-Lucent in my own experience on MSP box is amazing.
Regards
Dave
On Fri, Mar 13, 2009 at 9:54 PM, Joseph L. Brunner
<joe@affirmedsystems.com>wrote:
> I think they invented Cat 6509 QOS for consultants to get some extra
> billable hours
>
>
>
> Most 6509s are maytag repairmen with multiple phds in mechanical
> engineering they have way to much brains with nothing to use them on
>
>
>
> First run prtg or opmanager on the chassis for a week If your system
> traffic EVER exceeds 10% during production youre good. I would put some
> control plane security for other nasty things to prevent doss on the box.
>
>
>
> Search emule there are some nice networkers presentations floating around
> on security the 6509 from doss with cpp
>
>
>
> -Joe
>
>
> ------------------------------
>
> *From:* dave dave [mailto:funccie@gmail.com]
> *Sent:* Friday, March 13, 2009 1:02 PM
> *To:* Joseph L. Brunner
> *Cc:* Cisco certification
> *Subject:* Re: [Real World] 6500 QoS making me crazy..:(
>
>
>
> Hi Joseph & All Expert,
>
>
>
> Thanks Joseph for sharing your experience. I laso wanted to know if i stick
> to PFC QoS with PQ, how can i ensure in 100% of voice traffic load also i
> can configure my box such a way that my Control Plane traffic wont
lost...is
> it possible????
>
>
>
> Regards
>
> Dave
>
> On Fri, Mar 13, 2009 at 5:17 PM, Joseph L. Brunner <
> joe@affirmedsystems.com> wrote:
>
> This has never been in an issue in over 100 sites I have worked on,
> deployed and tested the 6509E, etc.
>
> My experience, no matter how hard you are driving the network (oracle rac,
> sun backups, Symantec backups, etc) the 6509 always has another 50 to
> 100Mbps to give...
>
> We once tried this (you'll like this)- a perl script to dump data from 3
> Redhat boxes to a single port where a cisco ip phone was on a 6509 Gigabit
> port... I wanted to convince management to invest the consulting hours in a
> qos deployment on about 9 6509E's... I could not get the voice call to
> jitter at all... he was on the phone with me talking fine even under that
> stress (and the packets it made it there, per span!!!)
>
> Like I said these switches always have something more to give even on the
> cheaper non-server asic'd blades... seems it doesn't let anyone flow use it
> all.
>
> -Joe
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> dave dave
> Sent: Friday, March 13, 2009 4:47 AM
> To: Cisco certification
> Subject: [Real World] 6500 QoS making me crazy..:(
>
> Hi Expert,
>
> *Catalyst 6500 Release 12.2SXH *
>
> SERVER-|-ACCESS-Router---L2-link---1g----------|
> |
>
>
SERVER-|-ACCES-Router---L2-link---1g-------------|---*1g--Dis-SW6500---10g*--
------L2-Link--------------------------Core
> Router
> |
> SERVER-|-ACCES-Router---L2-link---1g-------------|
>
>
> If i configure priority Queue which can take 100% BW, so it means priority
> traffic from different Access-Router aggregated to 100% of uplink of
> Aggregation switch to Core roure , all other traffic including control
> plane
> will be dropped. Is there is any work around for this. I can only do
> hardware-switched QoS.
>
> 6500 QoS
>
>
http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SX/configur
ation/guide/qos.html
>
> 6500 QoS Note from above URL
> For hardware-switched traffic, PFC QoS does not support the bandwidth,
> priority, queue-limit, or random-detect policy map class commands. You can
> configure these commands because they can be used for software-switched
> traffic.
> Does it mean that i need to disable mls switching to do the harware based
> swithing. I cant do the software based switching because that will not be
> good for the heavy traffic load considering my network, which may put hugh
> CPU load on my 6500 aggregation box.
>
>
> Regards,
> Dave
>
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>
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