Brocade Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide (Supporting R05.6.00) - Manual (Page 586)

562 Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide
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Local VLL
4
Brocade(config)# router mpls
Brocade(config-mpls)# vll-local test3
Brocade(config-mpls)# untagged ethernet 2/1
Brocade(config-mpls-vll-lo-test1)# vlan 100
Brocade(config-mpls-vll-lo-test1-vlan)# tagged ethernet 1/1
Local VLL QoS
The user can optionally specify Class of Service (COS) on a per-endpoint (EP) basis. This COS value
applies to inbound traffic on the endpoint. When a COS value is not specified, the port’s configured
priority and the packet’s 802.1p priority are used to determine the internal priority, as described for
the following traffic flows.
Untagged Endpoint 1 (EP1) to Untagged Endpoint 2 (EP2).
1. When available, use the configured COS value on untagged EP1 otherwise go to step 2.
2. When there is a configured port priority on untagged EP1 use that priority; otherwise go to
step 3.
3. When there is neither a COS value or priority configured (as described in steps 1 and 2),
the default “best effort” priority is used.
Tagged Endpoint 1 (EP1) to Tagged Endpoint 2 (EP2).
1. When available, use the configured COS value on tagged EP1; otherwise go to step 2.
2. The 802.1p priority of incoming packets on the tagged EP1 is merged with the port priority
of EP1.
Untagged Endpoint 1 (EP1) to Tagged Endpoint 2 (EP2).
1. When available, use the configured COS value on untagged EP1; otherwise go to step 2.
2. When there is a configured port priority on untagged EP1 use that priority; otherwise go to
step 3.
3. When there is neither a COS value or priority configured (as described in steps 1 and 2),
the default “best effort” priority is used.
Tagged Endpoint 1 (EP1) to Untagged Endpoint 2 (EP2).
1. When available, use the configured COS value on tagged EP1; otherwise go to step 2.
2. The 802.1p priority of incoming packets on the tagged EP1 is merged with the port priority
of EP1.
Double-Tagged Endpoint 1 (EP1) to Double-Tagged Endpoint 2 (EP2).
1. The internal priority is determined.
2. When Vll-local COS is configured, this value overrides internal priority.
3. By default, the outgoing outer VLAN COS is mapped from the internal priority by use of the
egress encoding map. The internal priority does not affect the outgoing inner VLAN COS.
4. The outgoing outer VLAN COS is preserved when qos pcp encode-policy off is configured
on the outgoing interface.
5. The outgoing inner VLAN COS is preserved — it is the same as the incoming packet’s inner
VLAN COS.
Single-Tagged Endpoint 1 (EP1) to Double-Tagged Endpoint 2 (EP2).