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Release Notes for the Cisco Catalyst Blade Switch 3020 for HP, Cisco IOS Release 12.2(55)SE and Later
OL-22861-04
Limitations and Restrictions
MAC replace can be configured so that when a host disconnects from a port without ending its
session, the session can be ended and the authentication sequence reset when a new MAC address
connects to the port.
•
Support for increasing the NVRAM buffer size for saving large configuration files.
•
ARP tracking probe enhancement to specify a source IP address for a VLAN.
•
Network Edge Access Topology (NEAT) controls the supplicant port during the supplicant
authentication period. When you connect a supplicant switch to the authenticator switch, the
authenticator port could be error-disabled when receiving Spanning Tree Protocol (STP) bridge
protocol data unit (BPDU) packets and the supplicant switch is not authenticated. The NEAT feature
is now enhanced to block the supplicant port during authentication, to ensure authentication
completes.
Use the
dot1x supplicant controlled transient
global configuration command to
control
access to
the supplicant port during authentication. Use the
no
form of this command to
provide
access to the
supplicant port during the authentication period
Limitations and Restrictions
You should review this section before you begin working with the switch. These are known limitations
that will not be fixed, and there is not always a workaround. Some features might not work as
documented, and some features could be affected by recent changes to the switch hardware or software.
•
“Cisco IOS Limitations” section on page 7
•
“Device Manager Limitations” section on page 11
•
“Caveats” section on page 11
Cisco IOS Limitations
•
“Configuration” section on page 7
•
“Ethernet” section on page 8
•
“IP” section on page 9
•
“IP Telephony” section on page 9
•
“Multicasting” section on page 9
•
“Quality of Service (QoS)” section on page 10
•
“SPAN and RSPAN” section on page 10
•
“Trunking” section on page 11
•
“VLAN” section on page 11
Configuration
•
A static IP address might be removed when the previously acquired DHCP IP address lease expires.
This problem occurs under these conditions:
–
When the switch is booted without a configuration (no config.text file in flash memory).
