10-12-2015 05:14 AM - edited 03-05-2019 02:31 AM
Hi All,
I have a situation where customer asked me to split 10 Mb WAN circuit to 6 Mb and 4 Mb for the hosts from the same subnet. There are two different departments and due to some reason we cant split them into two networks at this stage. Is there a possibility to allocate 6 Mb for 50 hosts and 4 Mb for remaining hosts from a /24 network?
Thanks
Ad
Solved! Go to Solution.
10-12-2015 11:49 AM
Hello
Folllowing on from Joesph suggestion, See the below shaping example for 10MB egress traffic spilt between two classsfications.
access-list 100 permit ip 172.16.1.0 0.0.0.127 any
access-list 101 permit ip 172.16.1.128 0.0.0.127 any
class-map match-all Lowhost_cm
match access-group 100
class-map match-all Highhost_cm
match access-group 101
policy-map Shape_Child_pm
class Lowhost_cm
bandwidth remaining percent 60
class Highhost_cm
bandwidth remaining percent 40
class class-default
fair-queue
policy-map Shape_Parent_pm
class class-default
shape average 10240000 160000
service-policy Shape_Child_pm
interface x/x
Description WAN
service-policy output Shape_Parent_pm
res
Paul
10-12-2015 09:08 AM
Hello
Can these hosts split between the subnet
ie: 50 host low end, 50 hosts high end or are they mixed
Or can they be split via specific application src / dst ports
if yes to any of these then it can be possible
res
paul
10-12-2015 09:38 AM
Hi Paul,
Many thanks for your reply. cant split them up via specific application however, I can re address and divide the subnets. what will be your approach in this scenario?
Thanks
Ad
10-12-2015 11:49 AM
Hello
Folllowing on from Joesph suggestion, See the below shaping example for 10MB egress traffic spilt between two classsfications.
access-list 100 permit ip 172.16.1.0 0.0.0.127 any
access-list 101 permit ip 172.16.1.128 0.0.0.127 any
class-map match-all Lowhost_cm
match access-group 100
class-map match-all Highhost_cm
match access-group 101
policy-map Shape_Child_pm
class Lowhost_cm
bandwidth remaining percent 60
class Highhost_cm
bandwidth remaining percent 40
class class-default
fair-queue
policy-map Shape_Parent_pm
class class-default
shape average 10240000 160000
service-policy Shape_Child_pm
interface x/x
Description WAN
service-policy output Shape_Parent_pm
res
Paul
10-12-2015 09:46 AM
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Usually, you can. (What you can do also depends on the platform being used.)
For egress you might have the choice of policing or shaping. For ingress, you cannot shape. (Policing ingress might not provide the exact results you desire.)
Also, for egress, rather than setting hard bandwidth limits, you might be able to prioritize 3:2, that way, hosts can take advantage of otherwise unused bandwidth.
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