08-03-2008 11:53 PM - edited 02-21-2020 02:57 AM
Class BEST-EFFORT
police cir 64000 bc 12000 be 24000 conform-action set-mpls-exp-imposition-t
ransmit 1 exceed-action drop violate-action drop
Actually am an ameture in QoS and we are having a Policy map setting as above
could you please clear what it is actually implies...???
I need to set a QoS for a 2 mb link in which 75 percent traffic should flow
for voice and remaining the default can u cleaar me how it is doing ???
Hope a positive result from your side
Thanks
Mahesh
08-04-2008 06:47 AM
the above config doing marking based on policer
and this kind of marking related to MPLS
r u useing MPLS??
if u want normal QOs for voip do the following
class-map voice
match ip dscp ef
policy-map policy1
class voice
priority percent 75
class class-defaul
bandwidth percent 25
fair-queue
random-detect
then go to the interface if it going to the WAN
for example
interface serial 0/0
service-policy output policy1
and ignore the class u have
NOTE: if u see above on the voice class i have match based on dscp value (ef) which is the default Cisco layer three voice marking used by IP phones
so u can use ur matching based on ACL, or Other crateria
but the concept of the above class map and polcy map the same
good luck
please, if helpful Rate
10-31-2008 04:46 AM
Hello I followed this post and did the same on a CIsco 871 doing a VPN, making sip calls and accessing the inet for data. After applying the policy I get :
I/f FastEthernet4 class default-traffic requested bandwidth 25%, available only 0%
What does this exactly mean ?
What are the commands to see if the QoS is working right ? Thanks !
10-31-2008 04:15 PM
ok
this is working as expected
the thing is by defualt the interface reserve 25% of bandwidth fot routing, and so on
u can change this defualt dehaiver but not recomnded because if the interface got congested even ur cotrol and anagment traffic like rotuing will be droped
what ISO version u run ?
i think above 12.2 which run the the percent amount as absoulut
anyway
make the first class map as percent 50
and for class defualt dont give it amount
just make the command like
class class-default
fair-queue
good luck
if helpful Rate
11-03-2008 02:39 AM
Hi ! Thanks for sharing your expertise.
I'm using IOS 12.4
class-map match-all default-traffic
class-map match-all voice
match dscp ef
!
!
policy-map policy1
class voice
priority percent 75
class default-traffic
I can't introduce "fair-queue".
The list of commands I can introduce is :
Policy-map class configuration commands:
bandwidth Bandwidth
compression Activate Compression
drop Drop all packets
exit Exit from class action configuration mode
log Log IPv4 and ARP packets
netflow-sampler NetFlow action
no Negate or set default values of a command
police Police
priority Strict Scheduling Priority for this Class
queue-limit Queue Max Threshold for Tail Drop
random-detect Enable Random Early Detection as drop policy
service-policy Configure Flow Next
set Set QoS values
shape Traffic Shaping
Thank you
11-24-2008 12:13 PM
As Marwan described:
class class-default
fair-queue
not
class default-traffic
Syntax in this situation is important. "Class-default" supports features, on many platforms, not available in other named classes.
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