Table of Contents
Advertisement
15 Layer 2 Switching Overview
Functionality used
#1
See 5 Overview of Layer 2 Authentication in the Configuration Guide Vol. 2.
#2
Spanning Tree Protocols are forcibly disabled for ports that have been set to the
primary port or secondary port of uplink redundancy.
Table 15-4 Restrictions on the Ring Protocol
Functionality used
Ring Protocol
#1
Do not use ring ports for ports on which terminal filtering is enabled by using DHCP
snooping.
#2
Do not use ring ports for ports on which authentication is performed.
#3
Do not use ring ports for the primary and secondary ports providing uplink
redundancy.
Table 15-5 Restrictions on IGMP or MLD snooping
Functionality used
IGMP Snooping
238
Functionality
Single Spanning Tree
PVST+
Loop guard
Ring Protocol
Layer 2 Authentication
Uplink redundancy
Functionality
PVST+
Single Spanning Tree
Multiple Spanning Tree
DHCP snooping (Terminal filter functionality)
Layer 2 Authentication
Uplink redundancy
Functionality
Default VLAN
Layer 2 Authentication
Available
#1
Partial
#2
Partial
Available
No
#1
Partial
#2
Partial
#3
Partial
Available
No
Can only be partially
#
used
Advertisement
Table of Contents
