Planet SGSW-24240 [322/328] User s manual of wgsw 24040 wgsw 24040r sgsw 24040 sgsw 24040r

User’s Manual of WGSW-24040 / WGSW-24040R

SGSW-24040 / SGSW-24040R

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QCE

QCE is an acronym for QoS Control Entry. It describes QoS class associated with a particular QCE ID.

There are six QCE frame types: Ethernet Type, VLAN, UDP/TCP Port, DSCP, TOS, and Tag Priority. Frames can be

classified by one of 4 different QoS classes: "Low", "Normal", "Medium", and "High" for individual application.

QCL

QCL is an acronym for QoS Control List. It is the list table of QCEs, containing QoS control entries that classify to a

specific QoS class on specific traffic objects.

Each accessible traffic object contains an identifier to its QCL. The privileges determine specific traffic object to specific

QoS class.

QoS

QoS is an acronym for Quality of Service. It is a method to guarantee a bandwidth relationship between individual

applications or protocols.

A communications network transports a multitude of applications and data, including high-quality video and

delay-sensitive data such as real-time voice. Networks must provide secure, predictable, measurable, and sometimes

guaranteed services.

Achieving the required QoS becomes the secret to a successful end-to-end business solution. Therefore, QoS is the

set of techniques to manage network resources.

RARP

RARP is an acronym for Reverse Address Resolution Protocol. It is a protocol that is used to obtain an IP address for a

given hardware address, such as an Ethernet address. RARP is the complement of ARP.

Router Port

A router port is a port on the Ethernet switch that leads switch towards the Layer 3 multicast device.

RSTP

In 1998, the IEEE with document 802.1w introduced an evolution of STP: the Rapid Spanning Tree Protocol, which

provides for faster spanning tree convergence after a topology change. Standard IEEE 802.1D-2004 now incorporates

RSTP and obsoletes STP, while at the same time being backwards-compatible with STP.

SAMBA