Physical
Interface Summary The customer's border router may be
co-located or remote. Its location makes no difference in the
physical interface requirements. The demarcation point is the
customer-facing port on the MAE network.
Element
Description
Physical port type
Packet over Sonet,
concatenated
Port speed & fiber type
OC3 OC12 OC48
single mode single mode single mode
Sonet options
fr-crc32 w/C2 byte=0x16
Payload scrambling
enabled
Clocking
DTE; obtains loop timing
from the network clock
Circuit encapsulation
Frame Relay
encapsulation IETF
Logical Interface
Summary The customer uses PeerMaker provisioner to create, modify,
and delete peering
circuits. PeerMaker provides the connection identifier (DLCI) for each
connection endpoint port to the destination customer when both have
accepted the circuit parameters.
Peering Connection
Classes Priority: This connection class is
available only for connections between regional ports in the same
metropolitan area. The
customer specifies committed bandwidth for
a connection; the CIR (Committed Information Rate) is set to the
committed rate. The EIR (Excess Information Rate) is set to twice the
committed rate. If the endpoint ports of a connection have different
rates, the slower port determines the maximum CIR and EIR of the
connection.
Best Effort: The
customer does not specify connection
bandwidth. The CIR is set to 42 Kbps, and the EIR is set to the
maximum allowed for the port. If the endpoint ports of a connection
have different rates, the slower port determines the maximum EIR.
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