Cisco Cisco IOS Software Release 12.2(35)SE
19
Release Notes for the Catalyst 3750 Metro Switch Cisco IOS Release 12.2(46)SE
OL-16490-01
Important Notes
•
When a trunk interface is converted to an IEEE 802.1Q tunnel, a traceback error message similar to
the following might appear:
the following might appear:
3d20h: %PLATFORM_UCAST-3-LB: PI<->PD handles out of sync for Adj 222.1.1.1 LB
-Traceback= 252620 A9204C A84E60 A86260 A92E7C AA36A0 AA3520 A96C60 A8A288 A78DC4
B095C8
There is no workaround. This does not affect switch functionality. (CSCeh20081)
Tunneling
This is the tunneling limitation:
•
VLAN mappings can be configured on a per-interface basis. A different set of mappings can be
configured on each an enhanced-services (ES) interface. The per-interface VLAN mappings remain
in effect even when the ES ports are bundled in an EtherChannel. For example, if you map Gigabit
Ethernet 1/1/1 to VLAN 20 through VLAN 50 and Gigabit Ethernet 1/1/2 to VLAN 20 through
VLAN 70, traffic on VLAN 20 leaving the switch through the ES port bundle should be
load-balanced across the individual ES interfaces. However, some of that traffic is incorrectly
translated to VLAN 50, and some is incorrectly translated to VLAN 70.
configured on each an enhanced-services (ES) interface. The per-interface VLAN mappings remain
in effect even when the ES ports are bundled in an EtherChannel. For example, if you map Gigabit
Ethernet 1/1/1 to VLAN 20 through VLAN 50 and Gigabit Ethernet 1/1/2 to VLAN 20 through
VLAN 70, traffic on VLAN 20 leaving the switch through the ES port bundle should be
load-balanced across the individual ES interfaces. However, some of that traffic is incorrectly
translated to VLAN 50, and some is incorrectly translated to VLAN 70.
The workaround is to configure identical VLAN mappings on both ES ports if they are going to be
bundled into an EtherChannel. (CSCec49520)
bundled into an EtherChannel. (CSCec49520)
VLAN
These are the VLAN limitations:
•
If the number of VLANs times the number of trunk ports exceeds the recommended limit of 13,000,
the switch can halt.
the switch can halt.
The workaround is to reduce the number of VLANs or trunks. (CSCeb31087)
•
A CPUHOG message sometimes appears when you configure a private VLAN. Enable port security
on one or more of the ports affected by the private VLAN configuration.
on one or more of the ports affected by the private VLAN configuration.
There is no workaround. (CSCed71422)
•
When you apply a per-VLAN QoS per-port policer policy-map to a VLAN SVI, the second-level
(child) policy-map in use cannot be re-used by another policy-map.
(child) policy-map in use cannot be re-used by another policy-map.
The workaround is to define another policy-map name for the second-level policy-map with the
same configuration to be used for another policy-map. (CSCef47377)
same configuration to be used for another policy-map. (CSCef47377)
Important Notes
These notes apply to Cisco IOS software:
•
Cisco IOS Release 12.2(40)SE and later
If the switch has interfaces with automatic QoS for voice over IP (VoIP) configured and you upgrade
the switch software to Cisco IOS Release 12.2(40)SE (or later), when you enter the auto qos voip
cisco-phone interface configuration command on another interface, you might see this message:
the switch software to Cisco IOS Release 12.2(40)SE (or later), when you enter the auto qos voip
cisco-phone interface configuration command on another interface, you might see this message:
AutoQoS Error: ciscophone input service policy was not properly applied
policy map AutoQoS-Police-CiscoPhone not configured