11-22-2013 11:58 PM - edited 03-04-2019 09:39 PM
Hi
could I ask policy question:
1. can I use same class/policy more than ones? like:
class-map match-any my-class
.............
!
policy-map policy-1
class my-class
prority percent 10
!
policy-map policy1G-int
class class-default
shape average 1000000000
service-policy policy-1
!
policy-map policy10G-int
class class-default10
shape average 1000000000000
service-policy policy-1 used same policy again?
!
2. if I want use 50% of 10G interface,
- can I change policy-map policy10G-int as:
policy-map policy 10G-int
shape average 5000000000 does it limited to use only 5G bandwidth of link?
service-policy policy-1
3. what different using QoS to limited bandwith, or use interface bandwith command?
interface te1/0/1
bandwidth 5000000000 is it same as qos "shape average xxxx"?
Could anyone advice me the three question?
Any comments will be appreciated
Thanks in advance
julie
11-23-2013 05:39 AM
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Posting
# 1 - yes, in fact that's why later CBWFQ supports percentages like your "priority percent 10"
# 2 - yes, although I believe most CBWFQ policers or shapers don't account for all L2 overhead - i.e. to really used 50% of the wire's bandwidth, you may need to use a value lower than 50%
# 3 - no, bandwidth statement within an interface just sets a number using by other processes, it doesn't physically restrain interface usage. Also bandwidth statement within a CBWFQ policy sets the relative scheduler priority, i.e. it too doesn't limit class bandwidth usage
11-23-2013 02:52 PM
If both QoS policy10G-int and interface bandwit comamnds could not limit bandwidth usage, how can I limit a 10G interface's allow bandwith to 5Gps at most?
Please advice
11-23-2013 05:32 PM
Disclaimer
The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
Liability Disclaimer
In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.
Posting
If both QoS policy10G-int and interface bandwit comamnds could not limit bandwidth usage, how can I limit a 10G interface's allow bandwith to 5Gps at most?
Did I write policy10G-int wouldn't limit bandwidth? A shaper will limit bandwidth. A bandwidth statement, within a class or on an interface, does not.
11-23-2013 07:03 PM
Joseph
Great thanks for quick and clear reply. this time I understand, the qustion #2 is ok to use to limit the bandwidth.
Many Regards
Julie
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