Dell PowerConnect 6024 User's Guide (.htm) - Page 51

General Configuration Information, Auto-Negotiation, Switching Port Default Settings - enable web

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General Configuration Information Your switch has predefined features and setup configuration. Auto-Negotiation Auto-negotiation allows a device to advertise modes of operation and share information with another device that shares a point-to-point link segment. This automatically configures both devices to take maximum advantage of their abilities. Auto-negotiation is performed completely within the physical layers during link initiation, without any additional overhead to either the MAC or higher protocol layers. Auto-negotiation allows the ports to do the following: • Advertise their abilities • Acknowledge receipt and understanding of common modes of operation that both devices share • Reject the use of operational modes that are not shared by both devices • Configure each port for the highest-level operational mode that both ports can support If connecting a port of the switch to the network interface card (NIC) of a workstation or server that does not support auto-negotiation or is not set to auto-negotiation, both the switching port and the NIC must be manuallyet with the Web browser interface or CLI commands to the same speed and duplex mode. NOTICE: If the station on the other side of the link attempts to auto-negotiate with a port that is manually configured to full duplex, the auto-negotiation results in the station attempting to operate in half duplex. The resulting mismatch may lead to significant frame loss. This is inherent in the auto-negotiation standard. Switching Port Default Settings The following table describes the switch port default settings. Table 5-1. Port Default Settings Function Port speed and mode Port forwarding state Head of line blocking prevention Flow Control Back Pressure Default Setting 1000M Auto-negotiation Enabled On (Enabled) Off Off Configuring the Switch 61

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Configuring the Switch
61
General Configuration Information
Your switch has predefined features and setup configuration.
Auto-Negotiation
Auto-negotiation allows a device to advertise modes of operation and share information with
another device that shares a point-to-point link segment. This automatically configures both
devices to take maximum advantage of their abilities.
Auto-negotiation is performed completely within the physical layers during link initiation, without
any additional overhead to either the MAC or higher protocol layers. Auto-negotiation allows the
ports to do the following:
Advertise their abilities
Acknowledge receipt and understanding of common modes of operation that both devices
share
Reject the use of operational modes that are not shared by both devices
Configure each port for the highest-level operational mode that both ports can support
If connecting a port of the switch to the network interface card (NIC) of a workstation or server
that does not support auto-negotiation or is not set to auto-negotiation, both the switching port
and the NIC must be manuallyet with the Web browser interface or CLI commands to the same
speed and duplex mode.
NOTICE:
If the station on the other side of the link attempts to auto-negotiate with a port that is
manually configured to full duplex, the auto-negotiation results in the station attempting to operate in half
duplex. The resulting mismatch may lead to significant frame loss. This is inherent in the auto-negotiation
standard.
Switching Port Default Settings
The following table describes the switch port default settings.
Table 5-1.
Port Default Settings
Function
Default Setting
Port speed and mode
1000M Auto-negotiation
Port forwarding state
Enabled
Head of line blocking prevention
On (Enabled)
Flow Control
Off
Back Pressure
Off