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Pseudowire / Circuit Emulation |
Pseudowires (PW) are a way to emulate a native
service (e.g. PDH, SONET)) over a Packet Switched
Network (PSN). The pseudowire is used to re-create,
as far as possible, the properties of a single
passive wire that can carry the native service
traffic.
Circuit Emulation (CE) is a sub-set of Pseudowire
technology that is specifically aimed at making ATM
networks look like a collection of private circuits.
Typically the circuits being emulated are of the
T1/E1 type.
The
AT6000 is a three device family that provides
complete pseudowire protocol coverage including
SAToP, CESoPSN, MEF-8, CEP, ATM pseudowires (PW),
PPP PW, HDLC PW, Ethernet PW. Thalassa also provides
the ability to handle concatenated ATM streams for
ATM switch/aggregation and dedicated ATM pseudowire.
Many legacy protocols: DS0, DS1, E1, DS3, E3, SONET/SDH,
ATM, IMA, HDLC, PPP, FR, MLPPP, Ethernet may be
tunneled concurrently within the supported PW
connections over PSN networks. Thalassa can connect
to a wide range of PSN networks including IPv4,
IPv6, MPLS, and Ethernet.
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|
|
AT6012 |
AT6006 |
AT6003 |
|
Features |
|
1024 PDH/ATM /Pkt PW |
512 PDH/ATM /Pkt PW |
256 PDH/ATM /Pkt PW |
|
|
Throughput |
336DS1/252E1 |
168DS1/126E1 |
84DS1/63E1 |
|
Capacity |
PW connections |
1024 |
512 |
256 |
|
PSN |
Ethernet/MPLS/IP |
Yes |
Yes |
Yes |
|
PDH PW |
Yes |
Yes |
Yes |
|
Circuits |
|
ATM/HDLC PW |
Yes |
Yes |
Yes |
|
VC12 PW |
Yes |
Yes |
Yes |
|
ML |
MLPPP Supported |
Yes |
Yes |
Yes |
|
Max number Links |
336 |
168 |
84 |
|
Max number Bundles |
168 |
84 |
42 |
|
Links/Bundle |
1 to 12 |
1 to 12 |
1 to 12 |
|
Delay Compensation |
100 mS |
100 mS |
100 mS |
|
ATM |
IMA/ATM SW |
Yes |
Yes |
Yes |
|
Max number Links |
336 |
168 |
84 |
|
Max number Groups |
168 |
84 |
42 |
|
Links/Group |
1 to 32 |
1 to 32 |
1 to 32 |
|
Delay Compensation |
256 mS |
256 mS |
256 mS |
|
Circuit Interface |
Serial DS1/E1 |
16 |
16 |
16 |
|
Serial DS3/E3 |
12 |
6 |
3 |
|
PDH Intf |
Yes |
Yes |
Yes |
|
Network Interface |
SONET/SDH |
2OC-12/STM-4 or
4OC-3/STM-1 |
2OC-12/STM-4 or
4OC-3/STM-1 |
2 OC-3/STM-1 |
|
|
4GEs (1+1) |
4GEs (1+1) |
2 GEs (1+1) |
|
External RAM |
|
4x16-bit DDR2 |
4x16-bit DDR2 |
3x16-bit DDR2 |
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