Cisco 3750G - Catalyst Integrated Wireless LAN Controller User Manual

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Catalyst 3750 Switch Software Configuration Guide
OL-8550-02
Chapter 11 Configuring Interface Characteristics
Configuring Ethernet Interfaces
Configuration Guidelines for 10-Gigabit Ethernet Interfaces
Follow these guidelines to avoid configuration problems:
• The speed and duplex features are not supported.
• The 10-Gigabit interfaces do not support these QoS features:
– Policing
– Auto-QoS for VoIP with Cisco IP Phones
– Servicing the egress queues by using shaped round robin (SRR) weights
– Limiting the bandwidth on an egress interface
• If a 10-Gigabit module port is configured as a SPAN or RSPAN destination port, its link rate
decreases.
• Support for a cross-stack EtherChannel with up to two 10-Gigabit module ports.
Configuring Interface Speed and Duplex Mode
Ethernet interfaces on the switch operate at 10, 100, or 1000 Mbps, or 10,000 Mbps and in either full-
or half-duplex mode. In full-duplex mode, two stations can send and receive traffic at the same time.
Normally, 10-Mbps ports operate in half-duplex mode, which means that stations can either receive or
send traffic.
Switch models include combinations of Fast Ethernet (10/100-Mbps) ports, Gigabit Ethernet
(10/100/1000-Mbps) ports, 10-Gigabit module ports, and small form-factor pluggable (SFP) module
slots supporting SFP modules.
These sections describe how to configure the interface speed and duplex mode:
• Speed and Duplex Configuration Guidelines, page 11-17
• Setting the Interface Speed and Duplex Parameters, page 11-18
Speed and Duplex Configuration Guidelines
When configuring an interface speed and duplex mode, note these guidelines:
• Fast Ethernet (10/100-Mbps) ports support all speed and duplex options.
• Gigabit Ethernet (10/100/1000-Mbps) ports support all speed options and all duplex options (auto,
half, and full). However, Gigabit Ethernet ports operating at 1000 Mbps do not support half-duplex
mode.
You cannot configure the speed or duplex mode on 10-Gigabit module ports; these ports operate
only at 10,000 Mbps and in full-duplex mode.
• For SFP module ports, the speed and duplex CLI options change depending on the SFP module type:
– The 1000BASE-x (where -x is -BX, -CWDM, -LX, -SX, and -ZX) SFP module ports support
the nonegotiate keyword in the speed interface configuration command. Duplex options are not
supported.
– The 1000BASE-T SFP module ports support the same speed and duplex options as the
10/100/1000-Mbps ports.

Cisco 3750G - Catalyst Integrated Wireless LAN Controller Specifications

General

Brand	Cisco
Model	3750G - Catalyst Integrated Wireless LAN Controller
Category	Wireless Router
Language	English