Example 2: cos behavior for, Dual-tagged to single-tagged vll endpoints – Brocade Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide (Supporting R05.6.00) User Manual
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Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide
53-1003031-02
How MPLS VLL works
4
Example 2: CoS behavior for dual-tagged to single-tagged VLL endpoints
shows a detailed example of the CoS behavior in a dual-tagged to single-tagged VLL
endpoint configuration. The table shows the difference in behavior for VLL tagged mode (described
in
) versus VLL raw mode (described in
).
Port priority 5
(with priority force), LSP
CoS 3. VLL CoS 4
QoS exp encode policy
all-zero (ingress router)
VLAN 100,
CoS 7
VLAN 200,
CoS 7
VLAN 300,
CoS 0
VLAN 400,
CoS 7
VLAN 300
CoS 0
VLAN 400
CoS 0
Port priority 5
(with priority force), LSP
CoS 3. VLL CoS 4
QoS PCP encode policy
all-zero (egress router)
VLAN 100,
CoS 7
VLAN 200,
CoS 7
VLAN 300,
CoS 0
VLAN 400,
CoS 7
VLAN 300,
CoS 0
VLAN 400,
CoS 3
Port priority 5
(with priority force), LSP
CoS 3. VLL CoS 4
QoS PCP decode policy
string (ingress router)
(mapping of 7 to 1)
VLAN 100,
CoS 7
VLAN 200,
CoS 6
VLAN 300,
CoS 3
VLAN 400,
CoS 6
VLAN 300,
CoS 3
VLAN 400,
CoS 3
QoS PCP decode policy
string (ingress router)
(mapping of 7 to 1)
VLAN 100,
CoS 7
VLAN 200,
CoS 6
VLAN 300,
CoS 1
VLAN 400,
CoS 6
VLAN 300,
CoS 1
VLAN 400,
CoS 1
TABLE 84
Example CoS behavior in a dual-tagged to dual-tagged VLL endpoint configuration
TABLE 85
Example CoS behavior in a dual-tagged to single-tagged VLL endpoint configuration
Priority
Incoming Packet
Outgoing Packet
Tag Mode
Outgoing Packet
Raw Mode
Outer VLAN
Outer VLAN
Inner VLAN
Outer VLAN
Inner VLAN
Outer VLAN
LSP CoS 4,
VLAN 100,
CoS 6
VLAN 200
CoS 5
VLAN 300,
CoS 4
NA
VLAN 300
CoS 4
NA
VLL CoS 2
VLAN 100,
CoS 6
VLAN 200
CoS 5
VLAN 300,
CoS 2
NA
VLAN 300
CoS 2
NA
Port priority 7
(with priority force)
VLAN 100,
CoS 6
VLAN 200
CoS 5
VLAN 300,
CoS 7
NA
VLAN 300
CoS 7
NA
802.1p
CoS 6 (outer VLAN)
VLAN 100,
CoS 6
VLAN 200
CoS 5
VLAN 300,
CoS 6
NA
VLAN 300
CoS 6
NA
Port priority 7 and VLL
CoS 2
VLAN 100,
CoS 6
VLAN 200
CoS 5
VLAN 300,
CoS 2
NA
VLAN 300
CoS 2
NA
Port priority 7
(with priority force), LSP
CoS 3
VLAN 100,
CoS 6
VLAN 200
CoS 5
VLAN 300,
CoS 3
NA
VLAN 300
CoS 3
NA
Port priority 7
(with priority force), LSP
CoS 3. VLL CoS 4
VLAN 100,
CoS 6
VLAN 200
CoS 5
VLAN 300,
CoS 3
NA
VLAN 300
CoS 3
NA