Basic Node
9532
Ethernet
Ethernet traffic Ethernet traffic
Ethernet
G.703 G.703
SDH/PDH
Inverse
Multiplexer
Inverse
Multiplexer
Figure 34 Protocol stack
3.6.2 Performance M anagement
The following performance counters for Ethernet traffic are available:
• Number of discarded packets, for example due to overflow or CRC-32
errors
• Number of sent/received frames
• Number of sent/received octets
3.6.3 Ethernet Interface Unit (ETU)
The ETU2 provides five 10/100BASE-T interfaces and one 10/100/1000BASE-T
interface.ItcanbefittedinanyAMM.
ETU2
10/100BASE-T
10/100/1000BASE-T
8359
:1
ERICSSON
ETU2
Fault
Power
BR
10/100BASE-T
10/100/1000BASE-T
10
100
1000
Link
Figure 35 ETU2
3.6.3.1 Functional Blocks
This section describes the ETU2 based on the block diagram in Figure 36
on page 34.
33
4/1555-CSH 109 32/1-V1 Uen B 2007-09-14
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