[nsp] 7600 questions

[Mohacsi Janos]

On Wed, 7 Jul 2004, Andrew Fort wrote:

> Hank Nussbacher wrote:
>
>> Looking to replace a 7513 w/ RSP16 and oodles of PAs (FEs, E3s, T3, STM1s 
>> and 2 GEs).  Choice is either GSR, J M20 or 7600.  In regards to the 7600 
>> with SUP720 what limitations are there in regards to: multicast, IPv6, 
>> Netflow V5, ACL limits, and uRPF?
>> 
>> Thanks,
>> Hank
>
>
> Main ones I can think of on PFC3A Sup720 (note we don't do v6 or multicast 
> here, so cant talk about that) are
>
> - Netflow is enabled or disable on the box as a whole, not per interface.  If 
> you don't want to know about some interfaces, you have to filter at the 
> collector. - uRPF is limited to one mode only, but no FIB halving business 
> occurs.  i.e., you are stuck to loose or strict (and a semi-strict against a 
> group of interfaces mode) for the whole router.
> - ACL limits are based on the number of ACEs your ACLs build.  Don't have the 
> figures handy, but it's the same as the Sup2, basically. (PFC3BXL has more 
> TCAM resources for just about everything, whereas PFC3A has similar resource 
> limitations to Sup2 in some areas).
>
> We're using FlexWAN and have had minor issues such as the sup code not 
> letting a WS6816 16-port GigE blade talk to the FlexWAN cards (bus + fabric 
> handling problems).  These are now fixed.  Was another bug with FlexWAN 
> config going missing (*CSCec17803).  Current software should be fine for all 
> of those things (other than v6+multicast which I cannot speak for).*
>
> Go Sup720+PFC3BXL if you can, seems to be the message, if you are using this 
> device as a router.
>

Probably there are some issues with the number of queues, if you are 
looking for QoS.
http://www.cisco.com/en/US/products/hw/switches/ps708/products_white_paper09186a0080131086.shtml
I cannot confirm, since I did not test it.

Also there are some interesting combination of the available bandwidth on 
certain interface cards depending, classic cef256, cef720, dcef720, 
acef720 support.
Regards,


Janos Mohacsi
Network Engineer, Research Associate
NIIF/HUNGARNET, HUNGARY
Key 00F9AF98: 8645 1312 D249 471B DBAE  21A2 9F52 0D1F 00F9 AF98


> -andrew.
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