Avaya Configuring Ethernet, FDDI, and Token Ring Services Manual de usuario Pagina 43

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Configuring FDDI Services
117020-A Rev. A 3-7
Specifying the SMT Connection Policy
A FDDI station sets the corresponding policy for each of the connection types that
it wants to reject. The policy descriptor takes the form “rejectX-Y” where X
denotes the physical connection (PC) type of the local port, and Y denotes the PC
type of the neighbor port.
X and Y can have the following values:
A -- Indicates that the port is a dual-attachment station or concentrator that
attaches to the primary IN and the secondary OUT when attaching to the dual
FDDI ring
B -- Indicates that the port is a dual-attachment station or concentrator that
attaches to the secondary IN and the primary OUT when attaching to the dual
FDDI ring
S -- Indicates a port in a single-attachment station or concentrator
M -- Indicates a port in a concentrator that serves as a master to a connected
station or concentrator
To set the connection policies that you want this line to reject, you specify a status
word with a value from 0x0 to 0xffff.
Use the following formula to determine the value of the status word:
1. Start with a value of zero for the status word (all bits set to 0).
2. For each connection policy that you want the node to reject, add to the status
word value the number 2 raised to a power specified in T
able 3-1. This is
equivalent to setting a bit to 1 for each policy that you want the node to reject.
You set the status word value to reflect local connection policies. Setting a
particular connection policy does not necessarily mean that the station will reject
the connection. The SMT standard requires that both sides of the connection must
agree to reject, or else both sides must accept, the connection.
Note: The SMT standard requires that you set Bit 15 (rejectM-M) to 1.
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