Cisco Cisco IOS Software Release 12.2(54)SE
22
Release Notes for the Catalyst 3750 Metro Switch Cisco IOS Release 12.2(54)SE
OL-22236-01
Open Caveats
In Cisco IOS Release 12.2(18)SE and later, you can only use the logging on and then the no logging
console global configuration commands to disable logging to the console. (CSCec71490)
console global configuration commands to disable logging to the console. (CSCec71490)
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Beginning with Cisco IOS Release 12.2(25)EY, ISL encapsulation is supported only on standard
ports and not on an enhanced-services (ES) ports. The ES ports support only IEEE 802.1Q
encapsulation and the switchport trunk encapsulation interface configuration command is no
longer available on these ports. When you are upgrading a switch from Cisco IOS Release
12.1(14)AX to Cisco IOS Release 12.2(25)EY or later, during the initial configuration process, the
switchport trunk encapsulation option is rejected on ES ports, and an error message appears. You
can ignore this error message. If you save the new configuration by using the copy running-config
startup-config privileged EXEC command and later re-install the Cisco IOS Release 12.1(14)AX
image, the trunk encapsulation method originally configured on ES ports is lost, and the ES ports
use the default encapsulation method, which is to negotiate.
ports and not on an enhanced-services (ES) ports. The ES ports support only IEEE 802.1Q
encapsulation and the switchport trunk encapsulation interface configuration command is no
longer available on these ports. When you are upgrading a switch from Cisco IOS Release
12.1(14)AX to Cisco IOS Release 12.2(25)EY or later, during the initial configuration process, the
switchport trunk encapsulation option is rejected on ES ports, and an error message appears. You
can ignore this error message. If you save the new configuration by using the copy running-config
startup-config privileged EXEC command and later re-install the Cisco IOS Release 12.1(14)AX
image, the trunk encapsulation method originally configured on ES ports is lost, and the ES ports
use the default encapsulation method, which is to negotiate.
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In Cisco IOS Release 12.1(14)AX and earlier, port-based EoMPLS sessions could only be
configured on switch ports. In Cisco IOS Release 12.2(25)EY and later, port-based EoMPLS
sessions can only be configured on routed ports.
configured on switch ports. In Cisco IOS Release 12.2(25)EY and later, port-based EoMPLS
sessions can only be configured on routed ports.
Note
This change is handled automatically during an upgrade to Cisco IOS 12.2(25)EY or later, but
if a configuration is written to NVRAM and the switch is then reloaded with Cisco IOS
12.1(14)AX, the new-style configuration is lost.
if a configuration is written to NVRAM and the switch is then reloaded with Cisco IOS
12.1(14)AX, the new-style configuration is lost.
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Beginning with Cisco IOS Release 12.2(25)EY, you must specify the encapsulation type when using
the xconnect interface configuration command.
the xconnect interface configuration command.
Note
This change is handled automatically during an upgrade to Cisco IOS 12.2(25)EY or later, but
if a configuration is written to NVRAM and the switch is then reloaded with Cisco IOS
12.1(14)AX, the new-style configuration is lost.
if a configuration is written to NVRAM and the switch is then reloaded with Cisco IOS
12.1(14)AX, the new-style configuration is lost.
Open Caveats
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CSCsj27896
When a class-map entry is added or modified, a delay of several seconds can occur if the switch
already has many policy maps defined. For example, a 6- second delay occurs when a new class map
is added to the a switch that already has 400 hierarchical QoS policies defined.
already has many policy maps defined. For example, a 6- second delay occurs when a new class map
is added to the a switch that already has 400 hierarchical QoS policies defined.
The delay occurs even if the policy maps are not attached to a switch interface. The console might
also be unresponsive when this occurs.
also be unresponsive when this occurs.
There is no workaround.
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CSCtf27594
When Bidirectional Forwarding Detection (BFD) is enabled on an interface of a switch that is
running Cisco IOS Release12.2(50)SE or later, Release 12.2(52)SE or later, or Release 12.2(54)SE,
CPU spikes can occur once or twice per hour.
running Cisco IOS Release12.2(50)SE or later, Release 12.2(52)SE or later, or Release 12.2(54)SE,
CPU spikes can occur once or twice per hour.
There is no workaround.
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CSCtf77937
When an EtherChannel is configured for 802.1ad and a channel member that is up is removed from
the EtherChannel, the 802.1ad configuration is removed. However, if the port channel is shut down
and then removed from the EtherChannel, the 802.1ad configuration is not removed.
the EtherChannel, the 802.1ad configuration is removed. However, if the port channel is shut down
and then removed from the EtherChannel, the 802.1ad configuration is not removed.