05-11-2007 03:29 AM - edited 03-03-2019 04:56 PM
I see a lot of exchange/SMTP traffic on my MPLS network and hence it was planned to restrict this traffic
I shaped the exchange traffic but i am receiving a lot of complaints about slow mail delivery. Woud policing be a better option with SMTP/exchange type of traffic than shaping
below is the config
policy-map QoS-to-MPLS
class voice
priority 1024
set ip dscp ef
class ftp
shape average 512000
class exchange
shape average 1024000
class class-default
fair-queue
class-map match-any exchange
match access-group name exchange
class-map match-all ftp
match access-group name ftp
class-map match-all voice
match ip rtp 16384 16383
Extended IP access list exchange
10 permit ip host 172.16.150.5 any
20 permit ip host 172.16.150.2 any
Extended IP access list ftp
10 permit tcp any any eq ftp-data
Narayan
05-11-2007 04:20 AM
Hi,
I think policing would be worst than shaping as it can have very adverse traffic on TCP traffic.
Perhaps what could help a little, would be fair queuing in the shaped classes.
On the other hand, when traffic exceeds capacity, someone will always complain.
Good luck!
05-11-2007 04:56 AM
I used shaping as policing would have caused TCP to retransmit again causing more traffic in one sense..
Perhaps i should just try to tune the bandwidth under the shape till it becomes better:-)
Narayan
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