
C
HAPTER
27
| Interface Commands
– 736 –
E
XAMPLE
Console#show cable-diagnostics interface ethernet 1/10
Console#show cable-diagnostics interface e 1/10
Port Type Link Status Pair A (meters) Pair B (meters) Last Update
-------- ---- ----------- ---------------- ---------------- -----------------
Eth 1/10 GE Up OK (21) OK (21) 2009-11-13 09:44:19
Console#
power-save
This command enables power savings mode on the specified port.
S
YNTAX
[
no
]
power-save
C
OMMAND
M
ODE
Interface Configuration (Ethernet)
C
OMMAND
U
SAGE
◆
IEEE 802.3 defines the Ethernet standard and subsequent power
requirements based on cable connections operating at 100 meters.
Enabling power saving mode can reduce power used for cable lengths
of 60 meters or less, with more significant reduction for cables of 20
meters or less, and continue to ensure signal integrity.
◆
Power saving mode only applies to the Gigabit Ethernet ports using
copper media.
◆
Power savings can be enabled on Gigabit Ethernet RJ-45 ports.
◆
The power-saving methods provided by this switch include:
■
Power saving when there is no link partner:
Under normal operation, the switch continuously auto-negotiates to
find a link partner, keeping the MAC interface powered up even if no
link connection exists. When using power-savings mode, the switch
checks for energy on the circuit to determine if there is a link
partner. If none is detected, the switch automatically turns off the
transmitter, and most of the receive circuitry (entering Sleep Mode).
In this mode, the low-power energy-detection circuit continuously
checks for energy on the cable. If none is detected, the MAC
interface is also powered down to save additional energy. If energy
is detected, the switch immediately turns on both the transmitter
and receiver functions, and powers up the MAC interface.
■
Power saving when there is a link partner:
Traditional Ethernet connections typically operate with enough
power to support at least 100 meters of cable even though average
network cable length is shorter. When cable length is shorter, power
consumption can be reduced since signal attenuation is proportional
to cable length. When power-savings mode is enabled, the switch
Содержание ES3510MA-DC
Страница 1: ...Management Guide www edge core com 8 Port Layer 2 Fast Ethernet Switch...
Страница 2: ......
Страница 4: ......
Страница 6: ...ABOUT THIS GUIDE 6...
Страница 44: ...FIGURES 44...
Страница 50: ...TABLES 50...
Страница 52: ...SECTION I Getting Started 52...
Страница 62: ...CHAPTER 1 Introduction System Defaults 62...
Страница 80: ...CHAPTER 2 Initial Switch Configuration Managing System Files 80...
Страница 82: ...SECTION II Web Configuration 82...
Страница 98: ...CHAPTER 3 Using the Web Interface Navigating the Web Browser Interface 98...
Страница 126: ...CHAPTER 4 Basic Management Tasks Resetting the System 126...
Страница 164: ...CHAPTER 5 Interface Configuration VLAN Trunking 164 Figure 57 Configuring VLAN Trunking...
Страница 202: ...CHAPTER 7 Address Table Settings Configuring MAC Address Mirroring 202...
Страница 452: ...CHAPTER 17 IP Services Displaying the DNS Cache 452...
Страница 498: ...CHAPTER 19 Using the Command Line Interface CLI Command Groups 498...
Страница 588: ...CHAPTER 22 SNMP Commands 588...
Страница 596: ...CHAPTER 23 Remote Monitoring Commands 596...
Страница 650: ...CHAPTER 24 Authentication Commands Management IP Filter 650...
Страница 738: ...CHAPTER 27 Interface Commands 738...
Страница 760: ...CHAPTER 29 Port Mirroring Commands RSPAN Mirroring Commands 760...
Страница 782: ...CHAPTER 32 Address Table Commands 782...
Страница 810: ...CHAPTER 33 Spanning Tree Commands 810...
Страница 862: ...CHAPTER 35 VLAN Commands Configuring Voice VLANs 862...
Страница 876: ...CHAPTER 36 Class of Service Commands Priority Commands Layer 3 and 4 876...
Страница 932: ...CHAPTER 38 Multicast Filtering Commands Multicast VLAN Registration 932...
Страница 956: ...CHAPTER 39 LLDP Commands 956...
Страница 1020: ...CHAPTER 42 Domain Name Service Commands 1020...
Страница 1026: ...CHAPTER 43 DHCP Commands DHCP Client 1026...
Страница 1058: ...CHAPTER 44 IP Interface Commands IPv6 Interface 1058...
Страница 1060: ...SECTION IV Appendices 1060...
Страница 1065: ...APPENDIX A Software Specifications Management Information Bases 1065 Trap RFC 1215 UDP MIB RFC 2013...
Страница 1066: ...APPENDIX A Software Specifications Management Information Bases 1066...
Страница 1088: ...COMMAND LIST 1088...
Страница 1097: ......
Страница 1098: ...ES3510MA DC E122010 ST R01 150200000251A...