[nsp] While where on the topic of 6500 series.

[Scott Farber]

On Tuesday, July 15, 2003, at 06:43  PM, Robert A. Hayden wrote:

> I've found hybrid much better if you are using the 6500 to do a lot of
> switching on the device.  You simply trunk a VLAN to port 15/1 to get 
> it
> to the "router" side of the switch and then build your vlan interface
> there if need be.  Mostly I find CatOS a better interface for Layer2
> management than IOS.

Maybe not a technical point, but I love native just for presenting a 
common CLI for the entry level folks.  Not to mention, I find it a bit 
easier to see all the changes showing up in RANCID reports, not just 
changes to VLAN interfaces.

> If you are doing mostly routing on the device, then hybrid mode is
> probably more headache than you need.

I'll second that strongly.  I've seen people botch hybrid->native 
conversions, and leave point to point links configured as 
vlan/switchport combos instead of moving to actual routed interfaces.  
All it winds up doing is creating headaches for the poor 3rd shift 
NOCsters troubleshooting circuit outages.

That aside, we do a fair amount of VLANs as well, and a classic gotcha 
for new folks seems to be the VLAN database.

Other than the normal IOS issues (counters, etc) native seems to work 
great for us.  Nothing fancy, just pushing large amounts of packets, 
but we've got everything from T1s through DS-3 (ATM and POS), OC-3 (ATM 
and POS), OC-12/48 POS, and Fast/GigE.  And yes, many of the interfaces 
are on FlexWANs.  I'd have to guestimate somewhere around 100 of these 
floating around with more on the way, and we haven't had any major 
wonkiness.  Or rather, any wonkiness has been traceable to 
hammer-fisted card installers or other human error.

Now if the darned counters would just play nice...

-s

> On Tue, 15 Jul 2003, Christopher J. Wolff wrote:
>
>> Thanks for the response Scott, are you aware of any pros or cons of
>> using native or hybrid?
>>
>> Christopher J. Wolff, VP CIO
>> Broadband Laboratories, Inc.
>> http://www.bblabs.com
>>
>> -----Original Message-----
>> From: Voll, Scott [mailto:Scott.Voll at wesd.org]
>> Sent: Tuesday, July 15, 2003 3:15 PM
>> To: Christopher J. Wolff; cisco nsp
>> Subject: RE: [nsp] While where on the topic of 6500 series.
>>
>> We have a cat 6509 with a FlexWan and it worked in Hybrid and also 
>> works
>> in Native Mode.  We are running version 12.1(11b)E11 in Native mode.
>>
>> We are running a DS3 card and an 8 port serial card in our FlexWan.
>>
>> --Scott
>>
>> -----Original Message-----
>> From: Christopher J. Wolff [mailto:chris at bblabs.com]
>> Sent: Tuesday, July 15, 2003 2:42 PM
>> To: 'cisco nsp'
>> Subject: [nsp] While where on the topic of 6500 series.
>>
>> Hello,
>>
>> Someone mentioned earlier two IOS options for the 6500...a "hybrid" 
>> and
>> a "regular" version.  I'm under the impression that the hybrid IOS was
>> needed to support the Flexwan/MSFC functionality.  Thank you for your
>> time.
>>
>> C.J. Wolff, VP CIO
>> Broadband Laboratories, Inc.
>> http://www.bblabs.com
>>
>>
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>
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