Dell S4048T User Manual

Rapid Spanning Tree Protocol (RSTP)
The Rapid Spanning Tree Protocol (RSTP) is a Layer 2 protocol — specified by IEEE 802.1w — that is
essentially the same as spanning-tree protocol (STP) but provides faster convergence and interoperability
with switches configured with STP and multiple spanning tree protocol (MSTP).
Protocol Overview
RSTP is a Layer 2 protocol — specified by IEEE 802.1w — that is essentially the same as spanning-tree
protocol (STP) but provides faster convergence and interoperability with switches configured with STP and
multiple spanning tree protocol (MSTP).
The Dell Networking OS supports three other variations of spanning tree, as shown in the following table.
Table 78. Spanning Tree Variations Dell Networking OS Supports
Dell Networking Term IEEE Specification
Spanning Tree Protocol (STP) 802.1d
Rapid Spanning Tree Protocol (RSTP) 802.1w
Multiple Spanning Tree Protocol (MSTP) 802.1s
Per-VLAN Spanning Tree Plus (PVST+) Third Party
Configuring Rapid Spanning Tree
Configuring RSTP is a two-step process.
1 Configure interfaces for Layer 2.
2 Enable the rapid spanning tree protocol.
Related Configuration Tasks
• Adding and Removing Interfaces
• Modifying Global Parameters
• Modifying Interface Parameters
• Configuring an EdgePort
• Prevent Network Disruptions with BPDU Guard
• Influencing RSTP Root Selection
• Configuring Spanning Trees as Hitless
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Rapid Spanning Tree Protocol (RSTP) 892

Dell S4048T Specifications

General

Switching Capacity	1.44 Tbps
Rack Units	1U
Form Factor	Rack-mountable
Power Device	Internal power supply
Power Redundancy	Optional
Product Type	Switch
Jumbo Frame Support	Yes
Routing Protocol	OSPF, BGP, RIP, VRRP, PIM-SM, IGMP
Remote Management Protocol	SNMP, RMON, Telnet, SSH
Features	Quality of Service (QoS), Jumbo Frames Support, Virtual Route Redundancy Protocol (VRRP), VLAN support, sFlow, Multiple Spanning Tree Protocol (MSTP), Rapid Spanning Tree Protocol (RSTP), IPv6 support
Compliant Standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3ae
Dimensions (W x D x H)	17.3 in x 16 in x 1.7 in
Operating Temperature	0°C to 40 °C
Operating Humidity	10% to 90% (non-condensing)