Global STP Control

BLADEOS 6.5.2 Application Guide

Rapid Spanning Tree Protocol (RSTP)

IEEE 802.1D (2004) RSTP mode is an enhanced version of STP. It provides more rapid convergence of the Spanning Tree network path states on STG 1.

RSTP is the default Spanning Tree mode on the G8124. See “Rapid Spanning Tree Protocol” on page 124 for details.

Per-VLAN Rapid Spanning Tree (PVRST)

PVRST mode is based on RSTP to provide rapid Spanning Tree convergence, but allows for multiple STGs, with an STGs on a per-VLAN basis. PVRST mode is compatible with Cisco R-PVST/R-PVST+ mode.

See “Per-VLAN Rapid Spanning Tree Groups” on page 126 for details.

Multiple Spanning Tree Protocol (MSTP)

IEEE 802.1Q (2003) MSTP provides both rapid convergence and load balancing in a VLAN environment. MSTP allows multiple STGs, with multiple VLANs in each.

See “Multiple Spanning Tree Protocol” on page 127 for details.

Depending on your preferred STG configurations:

Note – By default, the Spanning Tree feature is globally enabled on the switch, and is set for RSTP mode. Spanning Tree (and thus any currently configured STP mode) can be globally disabled using the following command: If STP is globally disabled, the switch will use STP/PVST+ mode for

RS G8124(config)# spanning-tree mode disable

internal controls, but will disable Spanning Tree on all user-configurable STGs.

Spanning Tree can be re-enabled by specifying the STP mode:

RS G8124(config)# spanning-tree mode {pvstrstppvrstmst}

where the command options represent the following modes:

pvst:STP/PVST+ mode

rstp:RSTP mode

pvrst:PVRST mode

mst:MSTP mode

110 Chapter 8: Spanning Tree Protocols

BMD00220, October 2010

G8124-E, G8124 specifications

The Blade ICE G8124 is a cutting-edge networking solution designed for high-performance data center environments. It has emerged as a popular choice among organizations that require reliable and efficient network infrastructure to support their growing demands for bandwidth and low-latency connectivity.

One of the key features of the Blade ICE G8124 is its high port density. This networking device typically offers 24 ports of 10 Gigabit Ethernet, ensuring that businesses can connect numerous devices without requiring extensive physical space. The design is also scalable, accommodating future expansion as organizational needs grow.

Another significant aspect of the G8124 is its advanced switching capabilities. It utilizes a non-blocking architecture, enabling simultaneous data transmissions on all ports. This characteristic ensures that there is no bottleneck in the network traffic, providing the high performance needed in data-intensive applications.

The G8124 incorporates various technologies to enhance its functionalities. It supports Layer 2 and Layer 3 switching, making it versatile for different networking needs. Additionally, it features comprehensive Quality of Service (QoS) settings that prioritize critical applications, such as VoIP and video streaming, ensuring smooth operation even under heavy loads.

In terms of security, the Blade ICE G8124 provides robust measures to protect the network. It supports features such as Access Control Lists (ACLs), port security, and VLANs, allowing administrators to segment the network and restrict unauthorized access. These security capabilities are vital in today’s landscape, where cyber threats are increasingly common.

Moreover, the G8124 offers excellent management features. It includes an intuitive user interface for easy configuration and monitoring of network performance. SNMP support allows integration with network management systems, providing administrators with insights needed to optimize their operations.

Power efficiency is also a hallmark of the Blade ICE G8124. It employs energy-saving technologies that reduce operational costs, an essential factor for environmentally-conscious organizations striving to minimize their carbon footprint.

In summary, the Blade ICE G8124 stands out with its high port density, advanced switching capabilities, robust security features, and efficient management options. This networking solution is designed to meet the demands of modern data centers, providing the performance, reliability, and scalability that organizations require. With its innovative technologies, the G8124 ensures that businesses can navigate the complexities of today's networking landscape effectively.

Blade ICE G8124-E manual Global STP Control, Depending on your preferred STG configurations

Models: G8124-E G8124

BLADEOS 6.5.2 Application Guide

Depending on your preferred STG configurations: