Cisco Cisco IOS Software Release 15.0(1)SE Release Notes
9
Release Notes for the Cisco IE 3010 Switch, Cisco IOS Release 15.0(2)SE and Later
OL-27309-02
Limitations and Restrictions
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When auto-QoS is enabled on the switch, priority queuing is not enabled. Instead, the switch uses
shaped round robin (SRR) as the queuing method. The auto-QoS feature is designed on each
platform based on the feature set and hardware limitations, and the queuing method supported on
each platform might be different.
shaped round robin (SRR) as the queuing method. The auto-QoS feature is designed on each
platform based on the feature set and hardware limitations, and the queuing method supported on
each platform might be different.
There is no workaround. (CSCee22591)
SPAN and RSPAN
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Cisco Discovery Protocol (CDP), VLAN Trunking Protocol (VTP), and Port Aggregation Protocol
(PAgP) packets received from a SPAN source are not sent to the destination interfaces of a local
SPAN session.
(PAgP) packets received from a SPAN source are not sent to the destination interfaces of a local
SPAN session.
The workaround is to use the monitor session session_number destination {interface interface-id
encapsulation replicate} global configuration command for local SPAN. (CSCed24036)
encapsulation replicate} global configuration command for local SPAN. (CSCed24036)
Trunking
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IP traffic with IP options set is sometimes leaked on a trunk port. For example, a trunk port is a
member of an IP multicast group in VLAN X but is not a member in VLAN Y. If VLAN Y is the
output interface for the multicast route entry assigned to the multicast group and an interface in
VLAN Y belongs to the same multicast group, the IP-option traffic received on an input VLAN
interface other than the one in VLAN Y is sent on the trunk port in VLAN Y because the trunk port
is forwarding in VLAN Y, even though the port has no group membership in VLAN Y.
member of an IP multicast group in VLAN X but is not a member in VLAN Y. If VLAN Y is the
output interface for the multicast route entry assigned to the multicast group and an interface in
VLAN Y belongs to the same multicast group, the IP-option traffic received on an input VLAN
interface other than the one in VLAN Y is sent on the trunk port in VLAN Y because the trunk port
is forwarding in VLAN Y, even though the port has no group membership in VLAN Y.
There is no workaround. (CSCdz42909).
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For trunk ports or access ports configured with IEEE 802.1Q tagging, inconsistent statistics might
appear in the show interfaces counters privileged EXEC command output. Valid IEEE 802.1Q
frames of 64 to 66 bytes are correctly forwarded even though the port LED blinks amber, and the
frames are not counted on the interface statistics.
appear in the show interfaces counters privileged EXEC command output. Valid IEEE 802.1Q
frames of 64 to 66 bytes are correctly forwarded even though the port LED blinks amber, and the
frames are not counted on the interface statistics.
There is no workaround. (CSCec35100).
VLAN
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If the number of VLANs times the number of trunk ports exceeds the recommended limit of 13,000,
the switch can fail.
the switch can fail.
The workaround is to reduce the number of VLANs or trunks. (CSCeb31087)
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When line rate traffic is passing through a dynamic port, and you enter the switchport access vlan
dynamic interface configuration command for a range of ports, the VLANs might not be correctly
assigned. One or more VLANs with a null ID appears in the MAC address table instead.
dynamic interface configuration command for a range of ports, the VLANs might not be correctly
assigned. One or more VLANs with a null ID appears in the MAC address table instead.
The workaround is to enter the switchport access vlan dynamic interface configuration command
separately on each port. (CSCsi26392)
separately on each port. (CSCsi26392)