GE ML1200 instruction manual SFP Gigabit 1000Mbps port modules, Packet Prioritization, 802.1p QOS

PRODUCT DESCRIPTION CHAPTER 2: PRODUCT DESCRIPTION

2.1.6SFP Gigabit (1000Mbps) port modules

The Gigabit port options for the modular slot come in a few different configurations of Fiber SFP’s or RJ-45’s. The Multilink ML1200 offers only SFPs (Small Form Pluggable) for Gigabit speed. There are multiple choices of SFP Gigabit transceiver types to combine with RJ-45’s for the modular slot. Up to two Gigabit ports (max.) can be configured in the modular slot C only. An example of a two Gb module is the HI Module (SFP fiber). An example of a single Gigabit module is the HK Module (10/100/1000Mb RJ-45 ports). A combo option of Gigabit copper and SFP fiber (HA Module) is shown below in the figure below.

The ML1200 Modules provide an SFP opening for insertion of industry-standard SFP transceivers to provide Gigabit (Gb) media flexibility. Gigabit SFP modules are available in both multi-mode (550m) and single-mode (10, 25, 40, 70) km fiber options as well as a Gigabit copper option.

There are three LEDs mounted on each Gigabit port module. The Gigabit fiber has LEDs that indicate F/H (Full/Half duplex), LK (Link status) and ACT (receiving activity) on that port when lit. The copper Gigabit ports come with speeds indicating (10/100/1000Mb) LEDs also.

The operation of the Gigabit SFP and 10/100/1000 RJ-45 ports is as described for those port types above.

2.1.7Packet Prioritization, 802.1p QOS

Quality of Service means providing consistent predictable data delivery to users from datagram paths that go all across a network. As a LAN device, the Multilink ML1200 can do its part to prevent any QOS degradation while it is handling Ethernet traffic through its ports and buffers.

The Multilink ML1200 switching hardware supports the IEEE 802.1p standard and fulfills its role in support of QOS, giving packet processing priority to priority tagged packets according to the 802.1p standard. In addition to hardware support for QOS, the MNS software (R2) supports two priority queues that can be shared across the eight levels of defined packet priorities for application-specific priority control by the user through software configuration settings.

2–6 MULTILINK ML1200 MANAGED FIELD SWITCH – INSTRUCTION MANUAL