
10-3
Cisco ONS 15600 Reference Manual, R7.0
Chapter 10 Ethernet Operation
10.2 Transport Functionality
Figure 10-1
ONS 15600 Ethernet Frame Transport
The ONS 15600 provides transport functionality of all frames arriving on the Ethernet interfaces.
Frames arriving on each Ethernet interface are mapped onto their own SONET path. In the reverse
direction, frames arriving on a SONET path are mapped to one and only one Ethernet interface. Frames
arriving on different Ethernet interfaces are not mapped onto the same SONET path.
Valid received Ethernet frames are encapsulated and transported across the SONET network. There are
no modifications made to any bits in the frame that is delivered at the destination Ethernet port. Because
invalid frames are dropped, this transport is not transparent.
shows Ethernet framing with HDLC/GFP header/trailers and mapping into a synchronous
payload envelope (SPE) for transport over a SONET network.
Figure 10-2
Ethernet Framing
124483
SONET
Backplane Connection
Ethernet
Line Card
(ASAP)
SONET
Line Card
SONET
Line Card
Matrix
Ethernet
Port
Ethernet
Processing
Ethernet
Port
Ethernet
Processing
124484
SONET
Backplane Connection
Ethernet
Line Card
Matrix
Ethernet
Port
Ethernet
Processing
Eth Frame
HDLC/GFP
P
O
H
Содержание ONS 15600 Series
Страница 27: ...xxvii Cisco ONS 15600 Reference Manual R7 0 About this Manual ...
Страница 29: ...xxix Cisco ONS 15600 Reference Manual R7 0 About this Manual ...
Страница 52: ...1 22 Cisco ONS 15600 Reference Manual R7 0 Chapter 1 Shelf and Backplane Hardware 1 11 5 Card Replacement ...
Страница 80: ...2 28 Cisco ONS 15600 Reference Manual R7 0 Chapter 2 Card Reference 2 9 Filler Card ...
Страница 110: ...5 10 Cisco ONS 15600 Reference Manual R7 0 Chapter 5 Security 5 4 2 Shared Secrets ...
Страница 142: ...7 28 Cisco ONS 15600 Reference Manual R7 0 Chapter 7 Circuits and Tunnels 7 16 Server Trails ...
Страница 270: ...13 16 Cisco ONS 15600 Reference Manual R7 0 Chapter 13 SNMP 13 8 5 History Control RMON Group ...