Tài liệu Cisco tolley_1_0103 pdf

IEEE 802.3 Interim January 2003
1
Customer and Market Issues:
Customer and Market Issues:
10
10
Gbps
Gbps
Ethernet on Category
Ethernet on Category
5 or Better Cabling
5 or Better Cabling
Bruce Tolley
Cisco Systems, Inc

IEEE 802.3 Interim January 2003
2
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
1997 1998 1999 2000 2001 2002
Total
Fiber
Copper
GbE

GbE
Switch Ports: Fiber
Switch Ports: Fiber
vs
vs
Copper
Copper
Ports (000s)
Source: Dell’Oro 2002
802.3z
STD
6/98
802.3ab
STD
6/99
IEEE 802.3 Interim January 2003
3
Success of
Success of
GbE
GbE
on Copper
on Copper
• It is 10/100/1000 Mbps
• It runs Cat5, 5e and 6
• It does not obsolete the installed
base
• It does not require both ends of
the link to be upgraded at the
same time

IEEE 802.3 Interim January 2003
4
10
10
GbE
GbE
Layer Diagram
Layer Diagram
Media Access Control (MAC)
Full Duplex
Media Access Control (MAC)
Full Duplex
CWDM
CWDM
PMD
PMD
1310 nm
1310 nm
Serial
Serial
PMD
PMD
850 nm
850 nm
CWDM
CWDM
LAN PHY
LAN PHY
(8B/10B)
(8B/10B)

10 Gigabit Media Independent Interface (XGMII) or
10 Gigabit Attachment Unit Interface (XAUI)
10 Gigabit Media Independent Interface (XGMII) or
10 Gigabit Attachment Unit Interface (XAUI)
Serial
Serial
LAN PHY
LAN PHY
(64B/66B)
(64B/66B)
Serial
Serial
PMD
PMD
1310 nm
1310 nm
Serial
Serial
PMD
PMD
1550 nm
1550 nm
Serial
Serial
PMD
PMD
850 nm
850 nm
Serial
Serial

PMD
PMD
1310 nm
1310 nm
Serial
Serial
PMD
PMD
1550 nm
1550 nm
Serial
Serial
WAN PHY
WAN PHY
(64B/66B + WIS)
(64B/66B + WIS)
-LX4 -SR -LR -SW -LW -EW-ER
Source: Cisco Systems
IEEE 802.3 Interim January 2003
5
Pluggable
Pluggable
10
10
GbE
GbE
Modules: The Surfeit of
Modules: The Surfeit of
SKUs
SKUs

XXX
CWDM,
DWDM
XXX-T
XX-CX4
XX-LX4
XX-ER
XXX-LR
XX-SR
XFPX2/XPAK
XAUI
XENPAK
XAUI
10GBASE
PMDs
Please: No new pluggable for 10GBASE-T!