Mapping C-Tag To S-Tag Dot1P Values - Dell C9000 Series Networking Configuration Manual

Examples of QoS Interface Configuration and Rate Policing
policy-map-input in layer2
service-queue 3 class-map a qos-policy 3
!
class-map match-any a layer2
match mac access-group a
!
mac access-list standard a
seq 5 permit any
!
qos-policy-input 3 layer2
rate-police 40
Likewise, in the following configuration, packets with dot1p priority 0–3 are marked as dot1p 7 in the outer
tag and queued to Queue 3. Rate policing is according to qos-policy-input 3. All other packets will have
outer dot1p 0 and hence are queued to Queue 1. They are therefore policed according to qos-policy-
input 1.
policy-map-input in layer2
service-queue 1 qos-policy 1
service-queue 3 qos-policy 3
!
qos-policy-input 1 layer2
rate-police 10
!
qos-policy-input 3 layer2
rate-police 30
!
interface TengigabitEthernet 0/21
no ip address
switchport
vlan-stack access
vlan-stack dot1p-mapping c-tag-dot1p 0-3 sp-tag-dot1p 7
service-policy input in layer2
no shutdown

Mapping C-Tag to S-Tag dot1p Values

To map C-Tag dot1p values to S-Tag dot1p values and mark the frames accordingly, use the following
commands.
1 Allocate CAM space to enable queuing frames according to the C-Tag or the S-Tag.
CONFIGURATION mode
cam-acl l2acl number ipv4acl number ipv6acl number ipv4qos number l2qos number
l2pt number ipmacacl number ecfmacl number {vman-qos | vman-qos-dual-fp} number
• vman-qos: mark the S-Tag dot1p and queue the frame according to the original C-Tag dot1p. This
method requires half as many CAM entries as vman-qos-dual-fp.
• vman-qos-dual-fp: mark the S-Tag dot1p and queue the frame according to the S-Tag dot1p.
This method requires twice as many CAM entries as vman-qos and FP blocks in multiples of 2.
The default is: 0 FP blocks for vman-qos and vman-qos-dual-fp.
2 The new CAM configuration is stored in NVRAM and takes effect only after a save and reload.
Service Provider Bridging 1026