Sorry to reply so late;
Does multicast traffic has a different behavior? Because on our 6509, the
multicast traffic is forwarded to a FlexWan interface using PFC:
(10.x.x.xxx, 239.xxx.xx.xx) Incoming interface: Vlan11, Packets switched:
18682651
Hardware switched outgoing interfaces: AT6/0/0.110 AT6/0/0.213 Hs6/1/0
RPF-MFD installed
(10.x.x.xxx, 239.xxx.xx.xx), 1w3d/00:02:57, flags: T
Incoming interface: Vlan11, RPF nbr 0.0.0.0, RPF-MFD
Outgoing interface list:
Hssi6/1/0, Forward/Sparse-Dense, 1w1d/00:02:37, H
"Cohen, Michael" @groupstudy.com em 24/01/2003
10:04:08
Favor responder a "Cohen, Michael"
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cc:
Assunto: RE: Traffic Shaping and LLQ on MSFC's and RSM's [7:61575]
Cisco TAC states that traffic to and from the FlexWan has to be routed
through the MSFC and not just the PFC. This allows for the use of LLQ.
-----Original Message-----
From: [EMAIL PROTECTED]
To: Cohen, Michael
Cc: [EMAIL PROTECTED]
Sent: 1/24/03 8:43 AM
Subject: RE: Traffic Shaping and LLQ on MSFC's and RSM's [7:61575]
Could you tell me the behavior with FlexWan?
"Cohen, Michael" @groupstudy.com em 23/01/2003
17:53:54
Favor responder a "Cohen, Michael"
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cc:
Assunto: RE: Traffic Shaping and LLQ on MSFC's and RSM's [7:61575]
Thanks to everyone who responded. I also double-checked with Cisco TAC
and
you guys are right. No LLQ on MSFC's or RSM's unless you're using
FLEXWAN's. Thanks again...
-Michael Cohen
-----Original Message-----
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: 1/23/03 10:41 AM
Subject: RE: Traffic Shaping and LLQ on MSFC's and RSM's [7:61575]
Once I tried to use LLQ on the MSFC to priorize audio multicast traffic.
The command 'sh mls ip multicast' (a tip from a groupstudy guy) showed
that
the multicast traffic was going through the PFC, so the LLQ was not
helping.
"John Humphrey" @groupstudy.com em 22/01/2003 19:47:44
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Assunto: RE: Traffic Shaping and LLQ on MSFC's and RSM's [7:61575]
I've encountered this issue in our production environment with
policy-maps.
Here's the answer Cisco's TAC gave me. Since the msfc interfaces are
software based, the MLS engine will bypass the route processor on most
of
your layer 3 packets. This prevents the shaping/policing policy from
being
applied on all egress traffic. You can, however, successfully apply the
policies to all ingress traffic because it must travel thru the Layer 3
process before it is sent to the destination node. So, if you're
applying a
service-policy to a msfc interface it must be applied with "input" as
the
direction. I'm not sure what effect disabling MLS would have on this
process
but I'm sure the benefits (if there would be any) would not be worth it.
You
can however use QoS policies on the layer 2 modules with acl mapping to
achieve much of the same benefits.
jh
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