Release Notes for Cisco Catalyst Blade Switch 3120 for HP, Cisco IOS Release 12.2(53)SE and Later
Table Of Contents
- Release Notes for Cisco Catalyst Blade Switch 3120 for HP, Cisco IOS Release 12.2(53)SE and Later
- Contents
- System Requirements
- Upgrading the Switch Software
- Installation Notes
- New Features
- Minimum Cisco IOS Release for Major Features
- Limitations and Restrictions
- Important Notes
- Open Caveats
- Resolved Caveats
- Documentation Updates
- Updates to the Software Documentation
- Update to the “Configuring IP Unicast Routing” Chapter
- User Interface for VRF-Aware RADIUS
- Update to the “Configuring IEEE 802.1x Port-Based Authentication” Chapter
- Update to the “Configuring IEEE 802.1x Port-Based Authentication” Chapter
- Update to the “Configuring Embedded Event Manager” Chapter
- Update to the “Configuring MSTP” Chapter
- Updates to the Switch Getting Started Guide
- Updates for the System Message Guide
- Updates to the Software Documentation
- Related Documentation
- Obtaining Documentation and Submitting a Service Request
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Release Notes for Cisco Catalyst Blade Switch 3120 for HP, Cisco IOS Release 12.2(53)SE and Later
OL-21144-02
Limitations and Restrictions
• Egress shaped round robin (SRR) sharing weights do not work properly with system jumbo MTU
frames.
There is no workaround. (CSCsc63334)
• In a hierarchical policy map, if the VLAN-level policy map is attached to a VLAN interface and the
name of the interface-level policy map is the same as that for another VLAN-level policy map, the
switch rejects the configuration, and the VLAN-level policy map is removed from the interface.
The workaround is to use a different name for the interface-level policy map. (CSCsd84001)
• If the ingress queue has low buffer settings and the switch sends multiple data streams of system
jumbo MTU frames at the same time at the line rate, the frames are dropped at the ingress.
There is no workaround. (CSCsd72001)
• When you use the srr-queue bandwidth limit interface configuration command to limit port
bandwidth, packets that are less than 256 bytes can cause inaccurate port bandwidth readings. The
accuracy is improved when the packet size is greater than 512 bytes. There is no workaround.
(CSCsg79627)
• If QoS is enabled on a switch and the switch has a high volume of incoming packets with a maximum
transmission unit (MTU) size greater than 1512 bytes, the switch might reload.
Use one of these workarounds:
–
Use the default buffer size.
–
Use the mls qos queue-set output qset-id buffers allocation1 ... allocation4 global
configuration command to allocate the buffer size. The buffer space for each queue must be at
least 10 percent. (CSCsx69718)
RADIUS
RADIUS change of authorization (COA) reauthorization is not supported on the critical auth VLAN.
There is no workaround. (CSCta05071)
Routing
• The switch stack might reload if the switch runs with this configuration for several hours, depleting
the switch memory and causing the switch to fail:
–
The switch has 400 Open Shortest Path First (OSPF) neighbors.
–
The switch has thousands of OSPF routes.
The workaround is to reduce the number of OSPF neighbors to 200 or less. (CSCse65252)
• When the PBR is enabled and QoS is enabled with DSCP settings, the CPU utilization might be high
if traffic is sent to unknown destinations.
The workaround is to not send traffic to unknown destinations. (CSCse97660)
SPAN and RSPAN
• When egress SPAN is running on a 10-Gigabit Ethernet port, only about 12 percent of the egress
traffic is monitored.
There is no workaround. This is a hardware limitation. (CSCei10129)