Installation guide

Release Notes for Catalyst 6000 Family Software Release 5.x 13

Open and Resolved Caveats in Software Release 5.3(3)CSX

(b) Successfully committing the ASLB conﬁguration

(d) Unsuccessfully committing the modiﬁed conﬁguration

Step (d) results in an inconsistent state. In release 5.3(4)CSX, the conﬁguration is restored to the

original when the modiﬁed conﬁguration is not successfully committed. This problem is resolved

in software release 5.3(4)CSX. (SCdp42842)

• A race condition problem between DTP and VTP table checking caused VTP not to clear

VLANs. This problem is resolved in software release 5.3(4)CSX. (CSCdp34876)

• MSFC generates MCAST-2-MAXGDALIMIT error messages with only 503 multicast entries.

This problem is resolved in software release 5.3(4)CSX. (CSCdp36453)

• If you enable port security, a static CAM entry gets added and is marked as 'X' indicating security.

Disabling security does not clear this CAM entry. Reboot also does not clear the entry. Capture

shows CAM entries before and after enabling security and even after reboot. This problem is

resolved in software release 5.3(4)CSX. (CSCdp31802)

Open and Resolved Caveats in Software Release 5.3(3)CSX

This section describes open and resolved caveats in supervisor engine software release 5.3(3)CSX.

Open Caveats in Software Release 5.3(3)CSX

This section describes open caveats in supervisor engine software release 5.3(3)CSX.

• The ToS byte remains unchanged in bridged multicast packets when Multicast Multilayer

Switching (MMLS) is enabled. The system does not support multiple, different rewrites for a

single packet. The rewrite that is generated for multicast is a Layer 3 rewrite so there is no rewrite

for the Layer 2 forwarding.

For example, there is a multicast source in VLAN 13 and a receiver in the same VLAN. There is

a QoS IP ACL conﬁgured and mapped to the source's ingress port that matches the trafﬁc ﬂow

and speciﬁes DSCP 31. When the MMLS feature is disabled, the IP packets captured on the

receiver's port contain a ToS byte of x7C (the expected result). When the MMLS feature is

enabled and a Layer 3 ﬂow is established, the captured packet's ToS byte is unchanged from the

value sent by the source. There is a ToS rewrite on the replicated packets in the outgoing VLANs

but for the packets that are bridged in the same incoming VLAN, there is no ToS rewrite.

(CSCdm72364)

• Use the QoS strict-priority queues only for your highest-priority trafﬁc. The strict-priority queues

are designed to accommodate only a limited volume of trafﬁc. In switches with Supervisor

Engine WS-X6K-SUP1-2GE, if you overload the strict-priority-queues, the supervisor engine

cannot service the standard queues. (CSCdm90683)

• RSVP access control entry (ACE) does not attach over an EtherChannel port if the QoS policy

for ports forming the channel are set at different times. The workaround is to execute the steps

which cause the problem in a different order. Consider that ports 4/1-8 are to be channeled and

have identical role combinations:

— set port qos 4/1 policy local

— set qos acl map acl1 4/1

— set qos policy cops