Contents
8
Software Configuration GuideāRelease IOS XE 3.9.xE and IOS 15.2(5)Ex
Traffic on the VSL 5-16
Layer 2 Protocols 5-16
Layer 3 Protocols 5-18
System Monitoring 5-19
Environmental Monitoring 5-19
File System Access 5-19
Diagnostics 5-20
Network Management 5-21
Dual-Active Detection 5-23
Dual-Active Detection Using Enhanced PAgP 5-23
Dual-Active Detection Using Fast-Hello 5-24
Recovery Actions 5-24
Configuring a Recovery IP Address 5-25
VSS Initialization 5-26
Virtual Switch Link Protocol 5-26
SSO Dependencies 5-26
Initialization Procedure 5-27
VSS Configuration Guidelines and Restrictions 5-28
General VSS Restrictions and Guidelines 5-28
Multichassis EtherChannel Restrictions and Guidelines 5-29
Dual-Active Detection Restrictions and Guidelines 5-30
Configuring a VSS 5-30
Configuring Easy VSS 5-30
Converting to a VSS 5-32
Backing Up the Standalone Configuration 5-33
Configuring SSO and NSF 5-34
Assigning Virtual Switch Domain and Switch Numbers 5-34
Configuring VSL Port Channel and Ports 5-34
Converting the Switch to Virtual Switch Mode 5-36
Converting to Quad-Supervisor VSS 5-37
Converting an Existing VSS Switch to Quad-Supervisor VSS Mode 5-37
Converting a Standalone Switch to Quad-Supervisor VSS 5-37
(Optional) Configuring VSS Standby Switch Modules 5-39
Displaying VSS Information 5-39
Converting a VSS to Standalone Switch 5-41
Copying the VSS Configuration to a Backup File 5-41
Converting the VSS Active Switch to Standalone 5-41
Converting the VSS Standby Switch to Standalone 5-42
Configuring VSS Parameters 5-42
Configuring VSL Switch Priority 5-43