| FrontType |
For Alteon 780 devices,
all cards use an encoded value according to the following rule: +-----+-----+-----+--+-----+----+---+
bits : |31-28|27-20|19-16|15|14-12|11-8|7-0| +-----+-----+-----+--+-----+----+---+
field : | a | b | c | d| e | f | g | +-----+-----+-----+--+-----+----+---+
a : Family type/Product line 0x0 = 0000 = Reserved 0x1 = 0001 = Monoploy
non specific (e.g backplane, psu, fans) 0x2 = 0010 = Boardwalk 0x3 = 0011
= Marvin Gardens 0x4 = 0100 = Pacific 0x5 = 0101 = ParkPlace b : Interface
/ device type: 0x00 = 00000000 = CPU 0x01 = 00000001 = Switch fabric 0x02
= 00000010 = Copper Ethernet 0x03 = 00000011 = Fiber Ethernet 0x04 = 00000100
= Sonet (Packets) 0x05 = 00000101 = ATM 0x06 = 00000110 = Token Ring 0x07
= 00000111 = RMON 0x08 = 00001000 = BFM (Frame or cells indicated by field
'a' above) 0x09 = 00001001 = PSU 0x0a = 00001010 = Fan Tray 0x0b = 00001011
= Chassis/Backplane c : Maximum speed (highest negotiable speed) 0x0 =
0000 = 10 Mbit 0x1 = 0001 = 100 Mbit 0x2 = 0010 = 1 Gbit 0x3 = 0011 = 10
Gbit 0x4 = 0100 = OC-3 0x5 = 0101 = OC-12 0x6 = 0110 = OC-48 0x7 = 0111
= OC-92 0x8 = 1000 = OC-192 0x9 = 1001 = 4 Mbit (TR) 0xa = 1010 = 16 Mbit
(TR) 0xb = 1011 = spare 0xc = 1100 = DS1 0xd = 1101 = DS3 0xe = 1110 =
none (no PHY interfaces on board) 0xf = 1111 = Max speed indicated implicitly
in field (c) (for expansion) d : 0=non-redundant, 1=redundant e : Card
specific info. For Gigabit used as follows: 000=short-haul (SX) 010=long-haul
(LX) 100=extra-distance (DX) For ATM/Sonet used as follows 000 = multi
mode 001 = single mode 010 = single or multimode For Marvin Gardens, indicates
number of MDA slots 000 = none 001 = one option slots 010 = two option
slots 011 = three option slots f : Chassis type 0x0 = 0000 = work-group
(single card switches, etc) 0x1 = 0001 = back-bone (chassis based products)
0x2 = 0010 = MDA (option modules) g : Number of ports (binary representation
omited) (for ACIM/BFM cards, this is number of octapids/blackbirds/dea)
0x00 = no ports (cpus, switch fabrics) 0x01 = 1-port, 0x02 = 2-port, 0x04
= 4-port, 0x06 = 6-port, 0x08 = 8-port, 0x0c = 12-port, 0x10 = 16-port,
0x18 = 24-port, 0x22 = 36-port, 0x30 = 48-port, 0x40 = 64-port. |