Juniper Networks EX2500 manual Chapter VLANs

EX2500 Ethernet Switch Configuration Guide

	TACACS+ Authentication	14
	How TACACS+ Authentication Works	14
	TACACS+ Authentication Features in the EX2500 Switch	14
	Command Authorization and Logging	16
	Configuring TACACS+ Authentication on the Switch	16
	Secure Shell	17
	Configuring SSH Features on the Switch	17
	SSH Encryption of Management Messages	17
	Generating RSA Host and Server Keys for SSH Access	17
	SSH Integration with RADIUS and TACACS+ Authentication	18
	End User Access Control	18
	Considerations for Configuring End User Accounts	19
	User Access Control	19
	Listing Current Users	20
	Logging In to an End User Account	20
Chapter 2	VLANs	21
	VLAN Overview	21
	VLANs and Port VLAN ID Numbers	22
	VLAN Numbers	22
	PVID Numbers	22
	VLAN Tagging	23
	VLAN Topologies and Design Considerations	26
	VLAN Configuration Rules	26
	Multiple VLANs Configuration Example	27
	Private VLANs	29
	Private VLAN Ports	29
	Private VLAN Configuration Guidelines	30
	Private VLAN Configuration Example	30
Chapter 3	Spanning Tree Protocol	31
	Spanning Tree Overview	31
	Bridge Protocol Data Units (BPDUs)	32
	Determining the Path for Forwarding BPDUs	32
	Bridge Priority	32
	Port Priority	33
	Port Path Cost	33
	Spanning Tree Group Configuration Guidelines	33
	Changing the Spanning Tree Mode	33
	Assigning a VLAN to a Spanning Tree Group	33
	Creating a VLAN	34
	Rules for VLAN Tagged Ports	34
	Adding and Removing Ports from STGs	34
	Rapid Spanning Tree Protocol	35
	Port State Changes	35
	Port Type and Link Type	36
	Edge Port	36
	Link Type	36
	RSTP Configuration Guidelines	36
	RSTP Configuration Example	36
	Per VLAN Rapid Spanning Tree	37
	Default Spanning Tree Configuration	37
	Why Do We Need Multiple Spanning Trees?	37

iv„ Table of Contents