Cisco Cisco IOS Software Release 12.2(55)SE
7
Release Notes for Catalyst 2350 Switch, Cisco IOS Release 12.2(55)SE and Later
OL-23019-05
Limitations and Restrictions
Cisco IOS Limitations
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Address Resolution Protocol
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The switch might place a port in an error-disabled state due to an Address Resolution Protocol
(ARP) rate limit exception even when the ARP traffic on the port is not exceeding the configured
limit. This could happen when the burst interval setting is 1 second, the default.
(ARP) rate limit exception even when the ARP traffic on the port is not exceeding the configured
limit. This could happen when the burst interval setting is 1 second, the default.
The workaround is to set the burst interval to more than 1 second. We recommend setting the burst
interval to 3 seconds even if you are not experiencing this problem.(CSCse06827)
interval to 3 seconds even if you are not experiencing this problem.(CSCse06827)
Cisco X2 Transceiver Modules and SFP Modules
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When switches are installed closely together and the uplink ports of adjacent switches are in use,
you might have problems accessing the SFP module bale-clasp latch to remove the SFP module or
the SFP cable (Ethernet or fiber). Use one of these workarounds:
you might have problems accessing the SFP module bale-clasp latch to remove the SFP module or
the SFP cable (Ethernet or fiber). Use one of these workarounds:
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Allow space between the switches when installing them.
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Use long, small screwdriver to access the latch then remove the SFP module and cable.
(CSCsd57938)
(CSCsd57938)
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When a Cisco X2-10GB-CX4 transceiver module is in the X2 transceiver module port and you enter
the show controllers ethernet-controller tengigabitethernet privileged EXEC command, the
command displays some fields as unspecified. This is the expected behavior based IEEE 802.3ae.
(CSCsd47344)
the show controllers ethernet-controller tengigabitethernet privileged EXEC command, the
command displays some fields as unspecified. This is the expected behavior based IEEE 802.3ae.
(CSCsd47344)
Configuration
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When a switch port configuration is set at 10 Mb/s half duplex, sometimes the port does not send in
one direction until the port traffic is stopped and then restarted. You can detect the condition by
using the show controller ethernet-controller or the show interfaces privileged EXEC commands.
one direction until the port traffic is stopped and then restarted. You can detect the condition by
using the show controller ethernet-controller or the show interfaces privileged EXEC commands.
The workaround is to stop the traffic in the direction in which it is not being forwarded, and then
restart it after 2 seconds. You can also use the shutdown interface configuration command followed
by the no shutdown command on the interface. (CSCsh04301)
restart it after 2 seconds. You can also use the shutdown interface configuration command followed
by the no shutdown command on the interface. (CSCsh04301)
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When you enter the boot host retry timeout global configuration command to specify the amount
of time that the client should keep trying to download the configuration and you do not enter a
timeout value, the default value is zero, which should mean that the client keeps trying indefinitely.
However, the client does not keep trying to download the configuration.
of time that the client should keep trying to download the configuration and you do not enter a
timeout value, the default value is zero, which should mean that the client keeps trying indefinitely.
However, the client does not keep trying to download the configuration.
The workaround is to always enter a non zero value for the timeout value when you enter the boot
host retry timeout timeout-value command. (CSCsk65142)
host retry timeout timeout-value command. (CSCsk65142)