From: ccie2be (ccie2be@nyc.rr.com)
Date: Sat Nov 13 2004 - 20:30:19 GMT-3
Hi Bob,
Recently, I've been trying to sort out this issue of where the
service-policy should be applied in the context of a f/r interface and found
your post.
So far, this is how I think about these 2 constructs. Please correct me if
anything I say is not completely true.
Starting first with the simple cases:
FRTS without MQC
Use this when traffic shaping settings apply equally to all traffic
types (http, smtp, etc)
Use multiple map-classes when FRTS settings are different for different
dlci's
Apply at the appropriate level of int - either phy, p2m sub, or p2p sub
Map-classes applied at phy level are inherited by sub-int unless
overrided
MQC without FRTS map-classes
Use this if different types of traffic (http, smtp, etc) get different
treatments
Apply at the appropriate level of int - either phy, p2m sub, or p2p sub
Can not be applied to an individual dlci of a phy or p2m sub.
Service-policy applied at phy level are inherited by sub-int unless
overrided
Now, it starts to get more complicated
MQC with FRTS (Service-policy inside map-class)
Use this when you need to prioritize by traffic type within a dlci
Like before, use multiple map-classes when FRTS settings are different
for different dlci's
Apply at the appropriate level of int - either phy, p2m sub, or p2p
sub
Map-classes applied at phy level are inherited by sub-int unless
overrided
BTW, one interesting and potentially very useful application of the above
construct is this can be used to apply an acl to
a particular dlci on a p2m interface either phy or p2m sub that doesn't
affect any traffic of the other dlci's. For example, let's say
a f/r physical interface is using 3 dlci's and 1 dlci connects to an ISP and
the other 2 connect to other routers in your network. And, you want to
block telnet access from the ISP but not block telnet access on the other 2
dlci's. Using MQC, telnet traffic is specified in a class-map, dropped in a
policy-map and applied with service-policy within a map-class that applied
to a particular dlci.
MQC with FRTS (Service-policy NOT inside map-class)
I have no idea when I should use this ????
If anybody can explain when this last scenario should be use and give a
concrete example or 2, that would be very, very helpful.
OK, time to get to studying.
TIA, Tim
----- Original Message -----
From: "Bob Sinclair" <bsinclair@netmasterclass.net>
To: <jean.paul.baaklini@accenture.com>; <ccielab@groupstudy.com>
Sent: Monday, September 13, 2004 12:19 PM
Subject: Re: MQC QoS - map class or service-policy
> JP,
>
> A couple differences of note:
>
> If you want different parameters on different VCs of a multipoint
interface
> then you will need to apply them in a map-class using frts.
>
> You will need to use a service-policy directly on the interface (or GTS)
if
> you want different shaping parameters for different types of traffic on an
> interface.
>
> HTH,
>
> Bob Sinclair
> CCIE #10427, CISSP, MCSE
> www.netmasterclass.net
>
> ----- Original Message -----
> From: <jean.paul.baaklini@accenture.com>
> To: <ccielab@groupstudy.com>
> Sent: Monday, September 13, 2004 7:07 AM
> Subject: MQC QoS - map class or service-policy
>
>
> > Hi Group,
> >
> > When configuring MQC QoS on routers meshed through a Frame-Relay
> > network.
> >
> > What's the difference between applying the service-policy command
> > directly to the interface or within a frame-relay class command?
> >
> > Cheers,
> > JP
> >
> >
> > This message is for the designated recipient only and may contain
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the
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