08-06-2007 03:22 PM - edited 03-05-2019 05:44 PM
We want to divide our traffic into two catagories: production system traffic and everything else. The production system is on three ip subnet only. We want to give the product system 88% of a particular interface and let everything else use the remaining 12%. Using SDM we did the attached configuration and the following lines would be added to the config:
class-map match-any Prod-System
match access-group name qos1
!
!
policy-map SDM-QoS-Policy-1
class Prod-System
set dscp af13
class class-default
fair-queue
random-detect
!
interface GigabitEthernet0/0
description $FW_INSIDE$
ip address 10.10.10.1 255.255.255.0
ip route-cache flow
duplex auto
speed auto
media-type rj45
negotiation auto
service-policy output SDM-QoS-Policy-1
!
ip access-list extended qos1
remark QoS: Production LANs Access
remark SDM_ACL Category=1
permit ip 10.101.0.0 0.0.255.255 any
permit ip 10.102.0.0 0.0.255.255 any
permit ip 10.103.0.0 0.0.255.255 any
!
Is this a best practices way of going about this and will this work as we expect? Any other critiques?
QOS policy SDM view
Access list used by QoS Policy
08-10-2007 12:22 PM
Use an access list - to port ranges is from 3200 - 3299 - I believe it is the best choice.
08-10-2007 01:20 PM
Well though its seems easier to configure via SDM, i prefer the CLI.
As per the SDM, it shows that LLQ has been configured for 88% which should have ideally reflected as
policy-map SDM-QoS-Policy-1
class Prod-System
priority percent 88 >>> seems to be missing
set dscp af13
class class-default
fair-queue
random-detect
Also as per cisco srnd recommendations, your LLQ traffic should not exceed 33% of your link and hence i would have configured assured forewarding instead of LLQ
eq
policy-map QoS-Policy
class Prod-System
bandwidth percent 88
set dscp af13
class class-default
fair-queue
random-detect
int g 0/0
bandwidth
max-reserved-bandwidth 100
service-policy output QoS-Policy
HTH, rate if it does
Narayan
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