Full-Duplex Support; Management Ports; Mini-Gbic Type And Hardware/Software Support; Mini-Gbic Types And Specifications - Extreme Networks Alpine 3808 Hardware Manual

Summary of Common Switch Features

Full-Duplex Support

Extreme Networks switches provide full-duplex support for all ports. This means that frames can be
transmitted and received simultaneously, which, in effect, doubles the bandwidth that is available on a
link. Most ports on an Extreme Networks switch autonegotiate for half-duplex or full-duplex operation.
Gigabit Ethernet and 100BASE-FX ports operate in full-duplex mode only in accordance with technical
standards.

Management Ports

The 10/100BASE-TX Ethernet management port allows you to communicate directly to the CPU of the
switch. You can plug an Ethernet cable directly from your laptop into the management port. This
provides you with direct access into the switch and allows you to view and locally manage the switch
configurations.
Do not assign an in-band IP address to the management port VLAN. The management port VLAN is an
out-of-band VLAN, so if it is assigned an in-band IP address (an address where the source and
destination are in the same subnet), the switch will treat it as a normal VLAN and attempt to route
traffic through it.
The management port is located on the following Extreme Networks devices:
• Summit5i—The management port is located on the back side of the switch
• Summit7i—The management port is located on the front side of the switch
• Alpine—Switch Management Module (SMMi) for the Alpine series switch
• BlackDiamond—Management Switch Fabric Module (MSM64i) for the BlackDiamond series switch
Extreme Networks does not recommend that you use the management port to route traffic to any front
panel port on the switch. The management port is designed for switch management purposes.

Mini-GBIC Type and Hardware/Software Support

The Summit48si, Summit24e3 and Summit series switches, the BlackDiamond G16X 3 module, and the
Alpine GM-16X 3 module support the small form pluggable (SFP) GBIC, also known as the mini-GBIC.
The switches and the modules identify the type of mini-GBIC that is installed and verifies that the
mini-GBIC is an Extreme Networks-certified mini-GBIC.

Mini-GBIC Types and Specifications

There are three types of mini-GBIC interfaces:
• SX mini-GBIC, which conforms to the 1000BASE-SX standard
• LX mini-GBIC, which conforms to the 1000BASE-LX standard
• ZX mini-GBIC, which conforms to the IEEE 802.3z standard
Use only Extreme Networks-certified mini-GBICs, available from Extreme Networks, into the
mini-GBIC port in the switch or module.
20 Extreme Networks Consolidated Hardware Guide