[c-nsp] QOS on ASR9K

[Brian Turnbow]

Hi  Alex,

on the 9k you can check out shared policy instance for this.
" Using SPI, a single instance of qos policy can be shared across multiple subinterfaces, allowing for aggregate shaping of the subinterfaces to one rate. All of the subinterfaces that share the instance of a QoS policy must belong to the same physical interface. The number of subinterfaces sharing the QoS policy instance can range from 2 to the maximum number of subinterfaces on the port."

So you can have a 2G shared policy and single subinterface policies like this

service-policy output customerlimit shared-policy-instance interfacelimit


Brian



> -----Original Message-----
> From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of
> Alex william
> Sent: lunedì 5 ottobre 2015 08:04
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] QOS on ASR9K
> 
> Hello,
> 
> I have a physical interface of 10G with several subinterfaces. I want to add a
> QoS limiting the bandwidth of each subinterface.
> 
> My need are:
> The physical interface has a bandwidth of 2Gbps. I have a total 12
> subinterfaces, 6 subinterfaces should be limited to 200Mbps each, 5 should be
> limited to 100Mbps, And the last one should be limited 300Mbps. In case of
> saturation, each subinterface should allow management IP with highest
> priority.
> 
> I tried the following configuration:
> 
> Classes to match each vlan:
> class-map match-any vlan10
>  match vlan 10
>  end-class-map
> class-map match-any vlan11
>  match vlan 11
>  end-class-map
> class-map match-any vlan12
>  match vlan 12
>  end-class-map
> 
> A grand parent policy map of 2Gbps:
> policy-map QoS-2Gbps
> class class-default
> shape average 2Gbps
> service-policy parent
> 
> The parent policy:
> policy-map parent
> class vlan10
> service-policy child
> shape average  200Mbps
> 
> The child policy:
> Policy-map child
> Class Mgmt
> Priority level 1
> 
> Class class-default
> 
> I added the grand parent policy to the interface in output direction. But traffic
> is matching only class-default. When I checked, the match vlan only works in
> ingress traffic and I want to limit only egress traffic.
> 
> I tried a different approach by creating a parent QoS of 200Mbps, 100Mbps
> and 300Mbps and added it to each subinterface but I am limited to only 8
> queues ID so am being able to apply it only to 2 subinterface.
> 
> The router is an ASR9K, with low-lined 10Gbps card and IOS version: 4.2.1
> 
> Can someone help please?
> 
> Regards,
> Alex
> 
> 
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