[c-nsp] Platforms for Rate Limit

[Tassos Chatzithomaoglou]

According to 
http://www.cisco.com/en/US/products/hw/switches/ps5528/products_configuration_guide_chapter09186a00805b57c4.html#wp1426834

The port ASIC device, which controls more than one physical port, supports 256 policers (255 policers plus 1 no policer). The 
maximum number of policers supported per port is 64. For example, you could configure 32 policers on a Gigabit Ethernet port and 8 
policers on a Fast Ethernet port, or you could configure 64 policers on a Gigabit Ethernet port and 5 policers on a Fast Ethernet 
port. Policers are allocated on demand by the software and are constrained by the hardware and ASIC boundaries. You cannot reserve 
policers per port; there is no guarantee that a port will be assigned to any policer.


--
Tassos

Mattias Eliasson wrote on 4/12/2006 12:16 μμ:
> Hi
> 
> We are currently running a few 3560s with configs like this:
> 
> class-map match-all Cust1
>    match access-group name Cust1
> 
> Policy-map Customers
> class Cust1
>      police 512000 128000 exceed-action drop
>      trust dscp
> 
> int 0/x
> service-policy input Customers
> 
> int 0/y
> service-policy input Customers
> 
> 
> ip access-list extended Cust1
>   permit ip any xx.xx.xx.xx 0.0.0.3
>   permit ip xx.xx.xx.xx 0.0.0.3 any
> 
> And we want to know the limits of this sollution.
> The 3560 seems to accept 9 interfaces with "service-policy input 
> Customers" before complaining about hardware limits.
> 
> Dec  4 10:53:25.337: %QOSMGR-4-POLICER_PLATFORM_NOT_SUPPORTED: Policer 
> configuration has exceeded hardware limitation for policymap 
> FastEthernet0/15
> 
> Will a 3560-G or 3750-G handle more interfaces and customers?
> Is there a limit to the number of acces-lists or classes / interface?
> Is this limiter hardware or software?
> 
> Best regards and thanks
> 
> Mattias Eliasson
> Teknikmejeriet AB
> 
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