[c-nsp] 6500 Rate-Limiting for Server Colocation

[David Freedman]

Yes, the BGP/QoS interaction is supported on The SUP720-3BXL

The design of QoS on the box is based around the linecards that you install.

If you are interested in queuing then a good reference can be found at :

http://www.cisco.com/warp/public/473/73.html

Allthough, for what you want to do (shaping), I dont believe its 
possible on the normal ethernet blades, I think you need an FlexWAN or 
OSM module to do this, based on

http://www.exio.com/en/US/products/hw/switches/ps708/products_qanda_item09186a00804d2e3a.shtml#q26

so consider using a policer instead.

Dave.


Simon Allard wrote:
> Hi Guys
> 
>  
> 
> Currently we are running 7513's with RSP4's and VIP4-80's and are looking
> for upgrade to 6500-SUP720-3BXL's. In theory it should be a nice upgrade,
> but want to make sure they are going to suit the task before parting with
> the cash.
> 
>  
> 
> What we do is do policy-maps which rate limit based on DSCP bits inbound and
> QoS groups for outbound traffic.
> 
>  
> 
> For example:
> 
>  
> 
> We match traffic inbound to the customer based on DSCP bits and outbound
> traffic is matched using QoS groups which looks at BGP communities to see if
> it's international or domestic traffic.
> 
>  
> 
> policy-map CUSTOMER-SIMON-INBOUND
> 
>   class CUSTOMER-SIMON-INT-INBOUND
> 
>     shape average 512000 2048 2048
> 
>     random-detect
> 
>   class CUSTOMER-SIMON-DOM-INBOUND
> 
>     shape average 2048000 8192 8192
> 
>     random-detect
> 
> policy-map CUSTOMER-SIMON-OUBOUND
> 
>   class CUSTOMER-SIMON-INT-OUTBOUND
> 
>     shape average 512000 2048 2048
> 
>     random-detect
> 
>   class CUSTOMER-SIMON-DOM-OUTBOUND
> 
>     shape average 2048000 8192 8192
> 
>     random-detect
> 
>  
> 
>  
> 
> interface Gi1/0/1.100
> 
> bandwidth 10000
> 
>  encapsulation dot1Q 100
> 
>  ip address 10.1.1.1 255.255.255.0
> 
>  no ip redirects
> 
>  no ip proxy-arp
> 
>  bgp-policy destination ip-qos-map
> 
>  no snmp trap link-status
> 
>  no cdp enable
> 
>  service-policy input CUSTOMER-SIMON-OUTBOUND
> 
>  service-policy output CUSTOMER-SIMON-INBOUND
> 
>  
> 
>  
> 
>  
> 
> What sort of Gotha's am I going to expect when migrating from a 7500 to a
> 6500. The 7500's do the rate-limiting on the VIP's which is great, but am I
> going to end up with CPU problems doing a lot of this type of rate-limiting
> on the 6500's?
> 
>  
> 
>  
> 
> Simon Allard 
> 
> Maxnet - AS9889
> 
>  
> 
> P: +64 9 913 9997
> 
> M: +64 21 622 717
> 
> E: simon.allard at maxnet.co.nz
> 
>  
> 
>  
> 
>  
> 
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