| Description | The mapping protocols (internally considered as
the 'link type') applied on this circuit.
The value ranges from 0 to 2047.
For point-to-point DLCI, the value stays zero.
Otherwise, the value is a sum. It initially takes
the value zero, then, for each type of Protocol,
2 raised to a power is added to the sum.
The following table presents respective power and
equivalent value for each applicable type:
Protocol Power Value
-------- ----- -----
IP 0 1
IPX 1 2
Appletalk 2 4
XNS 3 8
VINES 4 16
DECnet 5 32
CLNS 6 64
Bridging 7 128
RSRB 8 256
STUN 9 512
LLC2 10 1024
For example, value 3 means the circuit's mapping
protocols include IP and IPX. (3 = 2**1 + 2**0,
where 0 corresponds to IP and 1 to IPX.) Value 0
means there is currently no mapping protocol for
the circuit.
See cfrMapTable for more mapping information. |