P
Mapper/Framer for STM-4/STS-12
and STM-1/STS-3
The MetroMapper鈩?622 is a mapper/framer capa-
ble of mapping datacom traffic into SONET/SDH
transport payloads. On the line side, the
MetroMapper鈩?622 supports protected
STS-12/STM-4 and STS-3/STM-1 interfaces. On
the client side, up to sixteen Ethernet interfaces
(10/100 Mbps), two 1 GE and one OIF SPI-3 inter-
face with up to 64 logical channels are provided.
The Ethernet traffic or the packets coming from
the SPI-3 interface are encapsulated by either the
GFP-F, LAPS (X.85/.86) or PPP mapping scheme.
Low-order and high-order virtual concatenation
(VCAT) with Link Capacity Adjustment Schemes
(LCAS) for up to 64 virtual concatenated channels
is supported. MetroMapper鈩?622 provides Ether-
net IEEE802.1q VLAN operations and enables
Ethernet over MPLS.
Applications
I
Access / edge aggregation
I
MSPP
I
ADM
I
Mapper mode: packets are
mapped between Ethernet and
SDH/SONET interfaces
I
Packet mode: packets from the
SPI-3 interface are forwarded to
SDH/SONET and Ethernet inter-
faces, and vice versa
Features
Framer
I
Multi-Rate SONET/SDH framer
with STS/AU and VT/TU pointer
processing capabilities
I
Processes a single
STS-12/STM-4 or a quad
STS-3/STM-1
I
Supports 1+1 line protection
I
Payload Pointer interpretation and
generation
I
Fully SONET/SDH compliant
I
RODUCT
B
RIEF
MetroMapper鈩?622
I
I
I
I
I
I
I
Provides full performance moni-
toring for high- and low-order
paths
Provides high-order and low-order
virtual concatenation according to
ITU-T G.707
Supports up to 64 virtual concate-
nated groups (VCG)
Flexible concatenation of up to
12 high-order paths and up to
64 low-order paths into any virtual
concatenation group
Supports up to 336 VT1.5 or
252 TU12 low-order paths
Provides following mapping
schemes:
- AU-4 / VC-4 / TUG-3
- AU-3 / VC-3 or STS-1 / STS-SPE
External buffer for up to 48 ms
differential delay compensation
Different VCG group types are
defined:
- N
脳
VC-12, N
脳
VC-11,
N
脳
VT1.5 SPE, N
脳
VT2 SPE
(N
鈮?/div>
64)
I
I
I
- N
脳
VC-3, N
脳
STS1 SPE
(N
鈮?/div>
12)
- N
脳
VC-4, N
脳
STS3c SPE
(N
鈮?/div>
4)
Provides flexible mapping of any
VCG into any VC-4/STS-3
Fully integrated support for the
Link Capacity Adjustment Scheme
(LCAS) protocol according to
ITU-T G. 7042
Provides hitless increase and
decrease of multiple members
VCG
SPI-3 Interface
I
64 logical channels each of them
running in 32-bit mode
I
Packet mode with variable block
length
MetroMapper鈩?622
PEB1760
N e v e r
s t o p
t h i n k i n g .
INFINEON
1
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