Nortel Networks OPTera Metro 3500 User Manual
Page 125
Operation, administration, and maintenance (OAM) features 2-87
Planning and Ordering Guide—Part 1 of 2 NTRN10AN Rel 12.1 Standard Iss 1 Apr 2004
Fibre Channel facility
, lists facility parameters supported by the
2xGigE/FC-P2P Fibre Channel LAN port.
MTU
(Maximum Transfer
Unit)
Maximum Ethernet frame size supported.
Packets above the MTU will be dropped
and counted (LAN ingress) or truncated
and sent with CRC error (WAN ingress).
1600, 9600
R/W
PHYSADDR
(Ethernet MAC
address)
Ethernet MAC address. Used as SA in
PAUSE frames.
48-bit value
R/O
PAUSERXOVRRIDE
(Pause Receive
Override)
When auto-negotiation is enabled, the
Pause Receive Override is used to
override (disable) the negotiated PAUSE
receive.
Enable
R/O
Note 1:
Values in bold indicate defaults.
Note 2:
R/O = Read Only, R/W = Read & Write (provisionable)
Note 3:
When auto-negotiation is Disabled or In Progress, the attributes return Unknown.
Note 4:
Asym = Pause frames sent only, Sym = Pause frames sent and received.
Note 5:
For Gigabit Ethernet unidirectional drop and continue connections, at the "drop" nodes, if
auto-negotiation (AN) is disabled, PAUSETX should be set to DISABLE. If auto-negotiation (AN) is enabled,
FLOWCTRL should be set to "NONE". the 2xGigE/FC interface may cause PAUSE frames (if PAUSE TX =
Enabled) to be transmitted if valid Ethernet frames are received by the "drop" nodes.
Table 2-14
2xGigE/FC-P2P Fibre Channel port signal attributes
Signal Attribute
Definition
)
)
Indicates whether the service can be
carried over a sub-rate bandwidth.
Disable, Enable
R/W
EXTREACH
(Extend reach)
(See Note
& Note
)
Indicates whether the extended reach
mode of operation is used or not.
Disable, Enable
R/W
SERVICE
(Service)
Indicates which service is carried
FC100, FICON
R/W
Table 2-13 (continued)
2xGigE/FC-P2P Ethernet port facility signal attributes
Signal Attribute
Definition
Values
(See Note
1
)
Access
(see Note
2
)