I already have a QoS policy map applied on the WAN interface. I want to create a seperate traffic class for Outlook traffic because it consumes a fair amount of bandwidth and is considered as BusinessTraffic, according to the actual QoS design. So it is treated like any other TCP traffic.
Router sits on a branch office, and Outlook server is in HQ.
class-map match-any CLASS_BusinessTraffic
description various business applications
match access-group name ACL_BusinessTraffic
class-map match-any CLASS_TraficIP
description Tout le trafic IP
match access-group name ACL_TraficIP
ip access-list extended ACL_TraficIP
permit ip any any
ip access-list extended ACL_BusinessTraffic
permit tcp any any
description Policy LLQ sur le lien WAN
priority percent 35
set ip dscp ef
bandwidth remaining percent 90
set ip dscp af31
I thought of adding the following:
class-map match-any CLASS_Outlook
description Outlook traffic
match access-group name ACL_Outlook
set ip dscp AF21
ip access-list extended ACL_Outlook
permit ip any host 172.16.5.6 eq 443
is that correct?
with QoS you need to consider how much bandwidth you have over the wan then design your QoS based on the amount of bandwidth
maybe your are using a 100M interface but the actual available bandwidth over the WAN is 10M then you need to have your QoS policy aligned with the 10M not th e100M
once defined your QoS classes ( type of trafifc ) then you can put these policies under the QoS policy but keep in mind the bellow points
- the QoS policy match and process class man top down it match then stop if doe not find match it will go to the next class
thats why make sure if you have a class map with ACL that match IP any any do not put it first in the policy map other wise all the other class will be ignored
- secondly i noticed that you remarking the traffic (DSCP) before eyou send it out to the WAN do you have agreement with your service provider about which class of service ( DSCP ) and what do they support for end to end QOS if not then there is no benefit from re marking it as th eTeleco WAN provider will remarked to 0 and end it as best effort
please have a look at the bellow link to understand how to shape the interface to the actual bandwidth available to you over the WAN in order to get your QoS policy working
for the newly added class map under the QoS policy for outlook i cant see any action other than you remarking the traffic ifyo want some bandwidth guaranteed at lease allocate some bandwidth to be guaranteed in the case of link conjustion using the command bandwidth XX where is bandwidth in Kbps
if helpful Rate
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Yes, you can do that, provided the new class (CLASS_Outlook) appears before your existing class, CLASS_BusinessTraffic, in the policy map. You may also need to define a bandwidth allocation of this new class too.
Insufficient information to determine whether there will be any benefit to making such a change (also impossible to determine whether there's any benefit to what you have now).