Port Management
Configuring Link Aggregation
161 Cisco 500 Series Stackable Managed Switch Administration Guide Release 1.3
10
• Administrative Auto Negotiation—Enables or disable auto-negotiation on
the LAG. Auto-negotiation is a protocol between two link partners that
enables a LAG to advertise its transmission speed and flow control to its
partner (the Flow Control default is disabled). It is recommended to keep
auto-negotiation enabled on both sides of an aggregate link, or disabled on
both sides, while ensuring that link speeds are identical.
• Operational Auto Negotiation—Displays the auto-negotiation setting.
• Administrative Speed—Select the LAG speed.
• Operational LAG Speed—Displays the current speed at which the LAG is
operating.
• Administrative Advertisement—Select the capabilities to be advertised by
the LAG. The options are:
- Max Capability—All LAG speeds and both duplex modes are available.
- 10 Full—The LAG advertises a 10 Mbps speed and the mode is full
duplex.
- 100 Full—The LAG advertises a 100 Mbps speed and the mode is full
duplex.
- 1000 Full—The LAG advertises a 1000 Mbps speed and the mode is full
duplex.
• Operational Advertisement—Displays the Administrative Advertisement
status. The LAG advertises its capabilities to its neighbor LAG to start the
negotiation process. The possible values are those specified in the
Administrative Advertisement field.
• Administrative Flow Control—Set Flow Control to either Enable or Disable
or enable the Auto-Negotiation of Flow Control on the LAG.
• Operational Flow Control—Displays the current Flow Control setting.
• Protected LAG—Select to make the LAG a protected port for Layer 2
isolation. See the Port Configuration description in Setting Basic Port
Configuration for details regarding protected ports and LAGs.
STEP 4 Click Apply. The Running Configuration file is updated.
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