C
HAPTER
12
| Port Commands
– 232 –
C
OMMAND
U
SAGE
N
OTE
:
The 1000BASE-T standard does not support forced mode. Auto-
negotiation should always be used to establish a connection over any
1000BASE-T port or trunk. If not used, the success of the link process
cannot be guaranteed when connecting to other types of switches.
E
XAMPLE
Port>mode 5 100hdx
Port>mode 5
Port Mode Link
---- ------ ----
5 100hdx Down
Port>
port flow control
This command displays or sets the flow control mode.
S
YNTAX
port flow control
[
port-list
] [
enable | disable
]
port-list
- A specific port or a range of ports. (Range: 1-28, or
all
)
enable
- Enables flow control.
disable
- Disables flow control.
D
EFAULT
S
ETTING
Disabled
C
OMMAND
U
SAGE
◆
Flow control can eliminate frame loss by “blocking” traffic from end
stations or segments connected directly to the switch when its buffers
fill. When enabled, back pressure is used for half-duplex operation and
IEEE 802.3-2005 (formally IEEE 802.3x) for full-duplex operation.
◆
When auto-negotiation is used, this parameter indicates the flow
control capability advertised to the link partner. When the speed and
duplex mode are manually set, the Rx Pause field indicates whether
pause frames are obeyed by this port, and the Tx Pause field indicates
if pause frames are transmitted from this port (as shown in the
following example).
◆
Avoid using flow control on a port connected to a hub unless it is
actually required to solve a problem. Otherwise back pressure jamming
signals may degrade overall performance for the segment attached to
the hub.
Содержание 8028L2
Страница 1: ...MANAGEMENT GUIDE TigerSwitchTM 10 100 1000 28 Port Gigabit Ethernet Switch SMC8028L2 ...
Страница 6: ...ABOUT THIS GUIDE 6 ...
Страница 22: ...FIGURES 22 ...
Страница 26: ...SECTION Getting Started 26 ...
Страница 46: ...CHAPTER 2 Initial Switch Configuration Managing System Files 46 ...
Страница 48: ...SECTION Web Configuration 48 ...
Страница 133: ...CHAPTER 4 Configuring the Switch Simple Network Management Protocol 133 Figure 34 SNMP System Configuration ...
Страница 144: ...CHAPTER 4 Configuring the Switch Configuring DHCP Relay and Option 82 Information 144 ...
Страница 184: ...CHAPTER 6 Performing Basic Diagnostics Running Cable Diagnostics 184 ...
Страница 238: ...CHAPTER 12 Port Commands 238 ...
Страница 244: ...CHAPTER 13 Link Aggregation Commands 244 ...
Страница 262: ...CHAPTER 15 RSTP Commands 262 ...
Страница 272: ...CHAPTER 16 IEEE 802 1X Commands 272 ...
Страница 282: ...CHAPTER 17 IGMP Commands 282 ...
Страница 290: ...CHAPTER 18 LLDP Commands 290 ...
Страница 296: ...CHAPTER 19 MAC Commands 296 ...
Страница 306: ...CHAPTER 21 PVLAN Commands 306 ...
Страница 318: ...CHAPTER 22 QoS Commands 318 ...
Страница 352: ...CHAPTER 26 SNMP Commands 352 ...
Страница 355: ...CHAPTER 27 HTTPS Commands 355 EXAMPLE HTTPS redirect enable HTTPS ...
Страница 356: ...CHAPTER 27 HTTPS Commands 356 ...
Страница 362: ...CHAPTER 29 UPnP Commands 362 ...
Страница 370: ...CHAPTER 31 Firmware Commands 370 ...
Страница 372: ...SECTION Appendices 372 ...
Страница 386: ...GLOSSARY 386 ...
Страница 390: ...INDEX 390 W web interface access requirements 49 configuration buttons 50 home page 50 menu list 51 panel display 51 ...
Страница 391: ...INDEX 391 ...
Страница 392: ...149100000079A R01 SMC8028L2 ...