Apply An Input Policy Map To An Interface; Create Output Policy Maps - Dell Force10 S4810P Configuration Manual

To enable Fall Back to trust diffserve or dot1p:
Task
Classify packets according to their DSCP value as a secondary
option in case no match occurs against the configured class
maps.
Mapping dot1p values to service queues
Mapping dot1p values to service queues
On the C-Series and S-Series all traffic is by default mapped to the same queue, Queue 0. If you honor
dot1p on ingress, then you can create service classes based the queueing strategy in
command
globally by entering this command from CONFIGURATION mode.
• All dot1p traffic is mapped to Queue 0 unless
globally.
• Layer 2 or Layer 3 service policies supersede dot1p service classes.
Guaranteeing bandwidth to dot1p-based service queues
Guarantee a minimum bandwidth to queues globally from CONFIGURATION mode with the command
service-class bandwidth-weight
in an output QoS policy (see
QOS-POLICY-OUT mode supersedes the

Apply an input policy map to an interface

Apply an input policy map to an interface using the command
Specify the keyword
INTERFACE must be in switchport mode. You can apply the same policy map to multiple interfaces, and
you can modify a policy map after you apply it.
• You cannot apply a class-map and QoS policies to the same interface.
• You cannot apply an input Layer 2 QoS policy on an interface you also configure with
access
• If you apply a service policy that contains an ACL to more than one interface, FTOS uses ACL
optimization to conserves CAM space. The ACL Optimization behavior detects when an ACL already
exists in the CAM and rather than writing it to the CAM multiple times.

Create Output Policy Maps

Create Output Policy Maps
1. Create an output policy map using the command
834
| Quality of Service (QoS)
service-class dynamic dot1p
. The command is applied in the same way as the bandwidth-weight command
Allocate bandwidth to queue on page
if the policy map you are applying a Layer 2 policy map; in this case, the
layer2
.
is supported only on platform
Command Syntax
{
trust diffserve | dot1p
is available only on platforms:
from INTERFACE mode. You may apply this queuing strategy
service-class dynamic dot1p
service-class bandwidth-weight command
e
policy-map-output
Command Mode
}
fallback
POLICY-MAP-IN
c s
Table 39-6
is enabled on an interface or
830). The
bandwidth-weight
.
from INTERFACE mode.
service-policy input
from CONFIGURATION mode.
using the
command in
vlan-stack