Installation guide

Release Notes for Catalyst 6000 Family Software Release 5.x 23

Resolved Caveats in Software Release 5.3(1a)CSX

• If trafﬁc is received through a port that has port security enabled before the port is in the

forwarding state, the port is shutdown. This problem is ﬁxed in software release 5.3(1a)CSX.

(CSCdk73206)

• If the switch is in VTP client mode, entry of a copy device:ﬁlename conﬁg command may

generate messages about nonexistent VLANs. Wait until the show vlan command displays the

VLANs and then enter the copy command again. This problem is ﬁxed in software release

5.3(1a)CSX. (CSCdm07337)

• In some cases, on a switch with both BackboneFast and UplinkFast enabled, the show spantree

mod_num/port_num output shows that a port is in forwarding mode, but in reality the port is in

listening mode. As a result, all data trafﬁc received on the port is discarded. The workaround is

to disable and reenable the affected port. This problem is resolved in software release

5.3(1a)CSX. (CSCdm08504)

• password authentication (without TACACS) can be slow when DNS is enabled and DNS server

IP address is conﬁgured, but the DNS server is not reachable. The workaround is to disable DNS.

This problem is resolved in software release 5.3(1a)CSX. (CSCdm14239)

• A module may report “Unknown GBIC” in the type ﬁeld when HP GBIC(1000BASE-SX

30-0759-01) is installed. This problem is resolved in software release 5.3(1a)CSX.

(CSCdm14762)

• Do not conﬁgure anymodule so that the number of GVRP-enabled ports, including the individual

physical ports in GVRP-enabled EtherChannels, times the number of VLANs on the module,

exceeds 720. This problem is ﬁxed in software release 5.3(1a)CSX. (CSCdm18614;

CSCdm18380)

• The MSM is not supported as a SPAN source port. Conﬁguring the MSM as a SPAN source port

generates a “Failed to conﬁgure source port” message. If you conﬁgure the MSM as a SPAN

source port, all subsequent SPAN source port conﬁguration commands for that SPAN session

generate the same message until you remove the MSM from the source port list with a set span

disable mod_num/port_num command. This problem is ﬁxed in software release 5.3(1a)CSX.

(CSCdm20365)

• When you turn off the power on any module, you cannot turn the power back on through SNMP.

The workaround is to use the CLI command set module power up mod_num. This problem is

ﬁxed in software release 5.3(1a)CSX. (CSCdm23288)

• In some cases, when the active link of an UplinkFast link pair is disconnected, the switch does

not transmit broadcast frames on the secondary link. This problem is resolved in software release

5.3(1a)CSX. (CSCdm23587)

• Occasionally, the switch shuts down in response to an erroneous over-temperature reading. This

problem is resolved in software release 5.3(1a)CSX. (CSCdm24976)

• In some cases, if the primary UplinkFast link goes down, when it comes back up it can take 20

to 25 seconds to begin forwarding trafﬁc instead of the usual one to ﬁve seconds, depending on

the remote hardware. The workaround is to connect to a different port on the remote device if the

problem occurs. This problem is resolved in software release 5.3(1a)CSX. (CSCdm26273)

• In some cases, UplinkFast might not function correctly between a Catalyst 6000 family switch

and a Catalyst 4000 family switch, a Catalyst 2948G switch, or a Catalyst 5000 family Gigabit

EtherChannel module (WS-X5410). This problem is resolved in software release 5.3(1a)CSX.

(CSCdm34341)