05-09-2013 05:51 AM
Hello All,
Has anyone used the priority level command in IOSXR? If we have multiple classes under the same policy map which are assigned a priority level, then how will it affect the scheduling?
For example I have following config
policy-map test
Class 1
priority level 1
police rate percent 10
!
class 2
priority level 2
police rate percent 10
!
class default
bandwidth percent 80
Will my default class be able to take up all the bandwidth in case i dont have traffic for class 1 and class 2?
Will the above config generate two LLQ classes with strict policing?
Is there any documentation available for this priority level command usage?
Regards,
Shreeram
Solved! Go to Solution.
05-09-2013 06:47 AM
Priority queue level 1 is served first, at strict priority, until the queue is empty or the BW limitation imposed by policing is reached.
PQ level 2 is scheduled after priority level 1, until the queue is empty or the BW limitation imposed by policing is reached.
BW classes are scheduled afterwards.
If there is less traffic to be sent in PQ1 nor PQ2 than the configured policer limit, other classes can take up the BW allocated to PQ1 and PQ2. 'bandwidth [percent]' command defines the guaranteed minimum BW for the class, it does not impose the maximum BW.
All configuration commands are dicumented in http://tools.cisco.com/Support/CLILookup/cltSearchAction.do
05-09-2013 06:47 AM
Priority queue level 1 is served first, at strict priority, until the queue is empty or the BW limitation imposed by policing is reached.
PQ level 2 is scheduled after priority level 1, until the queue is empty or the BW limitation imposed by policing is reached.
BW classes are scheduled afterwards.
If there is less traffic to be sent in PQ1 nor PQ2 than the configured policer limit, other classes can take up the BW allocated to PQ1 and PQ2. 'bandwidth [percent]' command defines the guaranteed minimum BW for the class, it does not impose the maximum BW.
All configuration commands are dicumented in http://tools.cisco.com/Support/CLILookup/cltSearchAction.do
05-09-2013 05:25 PM
Hello Aleksandar,
Thank you very much for the reply.
Regards,
Shreeram
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