Configuring Interface Connections - Enterasys Matrix-V V2H124-24 Configuration Manual

Configuring Interface Connections

You can use the Port Configuration or Trunk Configuration page to enable/disable an
interface, set auto-negotiation and the interface capabilities to advertise, or manually
fix the speed, duplex mode, and flow control.
Command Attributes
• Name – Allows you to label an interface. (Range: 1-64 characters)
• Admin – Allows you to manually disable an interface. You can disable an interface
due to abnormal behavior (e.g., excessive collisions), and then reenable it after the
problem has been resolved. You may also disable an interface for security
reasons.
• Speed/Duplex – Allows manual selection of port speed and duplex mode (i.e., with
auto-negotiation disabled).
• Flow Control – Allows automatic or manual selection of flow control.
• Autonegotiation
disabled. When auto-negotiation is enabled, you need to specify the capabilities to
be advertised. When auto-negotiation is disabled, you can force the settings for
speed, mode, and flow control.The following capabilities are supported.
- 10half - Supports 10 Mbps half-duplex operation
- 10full - Supports 10 Mbps full-duplex operation
- 100half - Supports 100 Mbps half-duplex operation
- 100full - Supports 100 Mbps full-duplex operation
- 1000full - Supports 1000 Mbps full-duplex operation
- Sym (Gigabit only) - When specified, the port transmits and receives pause
frames; when not specified, the port will auto-negotiate to determine the sender
and receiver for asymmetric pause frames. (The current switch chip only
supports symmetric pause frames.)
- FC - Supports flow control
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 802.3x for full-duplex
operation. (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.)
(Default: Autonegotiation enabled; Advertised capabilities for 100BASE-TX –
10half, 10full, 100half, 100full; 100BASE-FX – 100full; 1000BASE-T – 10half,
10full, 100half, 100full, 1000full; 1000BASE-LX – 1000full)
• Trunk – Indicates if a port is a member of a trunk. To create trunks and select port
members, see "Creating Trunk Groups" on page 3-90.
Note: Autonegotiation must be disabled before you can configure or force the interface
to use the Speed/Duplex Mode or Flow Control options.
– Allows auto-negotiation to be enabled/
(Port Capabilities)
Port Configuration
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