|
Vendor |
Aries |
Nortel |
Marconi |
Tellabs/ |
Siemens |
Huawei |
ECI |
ZTE |
|
Product Name |
TN-1X/4 |
SMA4 |
Focus AC1 |
SMA 1/4 |
Optix 155/622 |
SDM 4 |
ZXSM-150/ |
|
| Features | ||||||||
|
DATA SUPPORT |
||||||||
|
Ethernet |
Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
|
n x VC-12 mapping (HO/LO Virtual Concatenation support) |
Yes; not limited in any sense |
No; available only on Optera 4000 platforms which are STM-4/16 |
Yes: but only available on 10BaseT interfaces and limited to 5 VC-12s |
Yes, but limited to 5 VC12 |
No |
No? |
No? |
No |
|
GFP, X.86, LCAS support for emerging services |
Yes |
No |
No |
X.86 not supported |
No | No | No | Yes |
|
Cell streaming (ATM) |
Yes (Roadmap) |
No |
Yes? |
No |
No | No | No | |
| SOFTWARE | ||||||||
| Auto-discovery & flow-through provisioning | Yes | Yes | No | No | No | No | No | No |
|
Open standard north-bound interfaces (SNMP & CORBA) |
Yes |
No? |
No |
Open CORBA interface is available only in high-end TMN |
No | No? | No | No |
|
OPTICS |
||||||||
|
Very Long Spans (VLR, JE) & integrated amplifier support |
Yes (spans up to 200 kms can be realized) |
No | No | No | Yes | No | No | Yes |
|
CROSS-CONNECT |
||||||||
|
Cross-connect size & versatility |
16 STM-1s (non-blocking at VC-12) |
Cross-connect is blocking; only one STM-1 worth of cross-connectivity on the tributary |
32 STM-1s; full flexibility |
4 STM-1s; no hair-pinning support |
16 STM-1s; full flexibility |
24 STM-1s; full flexibility |
16 STM-1s; full flexibility |
16 STM-1s, 96 STM-1s; full flexibility |
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