DCFM Enterprise User Manual (53-1001775-01, June 2010)

DCFM Enterprise User Manual 387
53-1001775-01
When both DSCP and L2CoS are used
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When both DSCP and L2CoS are used
If an FCIP tunnel or circuit is VLAN tagged, both DSCP and L2CoS are relevant, unless the VLAN is
end-to-end, with no intermediate hops in the IP network. The following table shows the default
mapping of DSCP priorities to L2Cos priorities. This may be helpful when consulting with the WAN
administrator. These values may be modified per FCIP tunnel.
TABLE 23 Default Mapping of DSCP priorities to L2Cos Priorities
DSCP priority/bits L2CoS priority/bits Assigned to:
46 / 101110 7 / 111 Class F
7 / 000111 1 / 001 Medium QoS
11 / 001011 3 / 011 Medium QoS
15 / 001111 3 / 011 Medium QoS
19 / 010011 3 / 011 Medium QoS
23 / 010111 3 / 011 Medium QoS
27 / 011011 0 / 000 Class 3 Multicast
31 / 011111 0 / 000 Broadcast/Multicast
35 / 100011 0 / 000 Low Qos
39 / 100111 0 / 000 Low Qos
43 / 101011 4 / 100 High QoS
47 / 101111 4 / 100 High QoS
51 / 110011 4 / 100 High QoS
55 / 110111 4 / 100 High QoS
59 / 111011 4 / 100 High QoS
63 / 111111 0 / 000 -