CSCse33321
•
The Ethernet interface fa0 loses and regains its link because of a DHCP IP address timeout. This
situation exists when the HP Onboard Administrator acts as the DHCP server and provides the
IP address to the fa0 interface. This occurs when using the clear arp-cache privileged EXEC
command to explicitly clear the ARP table.
The workaround is to add a static ARP table entry for the DHCP server (in this case, the Onboard
Administrator) to the switch and to increase the lease time of the DHCP IP address on the server.
CSCsf98370
•
Fiber optic small form-factor pluggable (SFP) modules do not establish a link when you configure
the Ethernet interfaces with the speed nonegotiate interface configuration command.
The workaround is to remove the speed nonegotiate setting for the Ethernet interface that has the
fiber SFP installed. This configuration has to be done on the link partner device as well.
CSCsg21537
•
When MAC addresses are learned on an Etherchannel port, the addresses are incorrectly deleted
from the MAC address table even when the MAC address table aging timeout value is configured to
be longer than the ARP timeout value. This causes intermittent unicast packet flooding in the
network.
The MAC address is automatically relearned after the ARP refresh. The workaround is to enter the
ping ip address privileged EXEC command from the switch to the next hop router to avoid the
intermittent flooding.
•
CSCsg48163
When the flowcontrol setting for received pause frames is enabled, the switch shows the operational
state as off.
There is no workaround.
•
CSCsi63999
Changing the spanning tree mode from rapid STP to MSTP can cause tracebacks when the virtual
port error-disable feature is enabled when the STP mode is changed.
There is no workaround.
•
CSCsi75246
An address learned as a supplicant that is aged out by port security aging is never relearned by port
security under any of these conditions:
–
–
–
The workaround is to use the dot1x timeout interface configuration command instead of the port
security aging timer as the reauthentication timer for IEEE 802.
OL-12577-03
IEEE 802.1x authentication, port security, and port security aging are enabled on a port.
An address is cleared by port security.
You enter the clear port security privileged EXEC command.
Release Notes for the Cisco Catalyst Blade Switch 3020 for HP, Cisco IOS Release 12.2(37)SE and Later
Open Caveats
15
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