day to once a month. This issue can

 

 

reoccur even after the switch is

 

 

power cycled. The purpose of this

 

 

Cisco bug ID is to combine several

 

 

software reworks, fixes that resolve

 

 

and reduce the loss of connectivity

 

 

issues, and additional

 

 

troubleshooting checks in software.

 

 

 

 

 

An invalid packet with a length of

 

 

less than 64 bytes received on a

CSCdr37645

 

10/100 port causes both the Runts

( registered

4.5(8),

and FCS−Error counters to

customers only)

increment on the port. To determine

5.5(2),

 

the actual number of FCS−Errors on

 

6.1(1)

 

valid length packets received on the

 

 

 

 

port, subtract the value of the port

 

 

Runts counter from the value of the

 

 

port FCS−Error counter.

 

 

 

 

 

Some Sun Gigabit Ethernet NICs do

CSCdm38405

 

not reliably autonegotiate flow

 

control with certain ports on the

( registered

 

 

Catalyst 4000 series oversubscribed

customers only)

 

5.1(1)

Gigabit Ethernet modules. The

 

 

 

18−port server switching

 

 

1000BASE−X (GBIC) Gigabit

 

 

Ethernet module (WS−X4418) is

 

 

affected.

 

 

 

CSCdm51653

 

In some cases, autonegotiation with

( registered

 

 

some Sun NICs can result in a

customers only)

4.5(3),

nonoptimal configuration (such as

 

5.1(2a)

 

10 Mbps, half−duplex instead of

 

 

 

 

100 Mbps, full−duplex).

 

 

On a Catalyst 4006 with a

 

 

Supervisor Engine II, switch ports

 

 

in the same VLAN can lose

 

 

connectivity with one another. The

 

 

loss of connectivity results in a

 

 

VLAN that appears to be

CSCdt80707

 

partitioned into several isolated

 

segments. A host can be able to

( registered

 

5.5.7,

ping one set of devices in its

customers only)

6.1.3,

VLAN, while it cannot ping another

 

 

6.2.1

set of devices in the same VLAN.

 

 

This loss of connectivity is

 

 

independent of the slot in which a

 

 

linecard is installed; that is, the

 

 

same set of ports on a given

 

 

linecard are affected regardless of

 

 

the slot in which the linecard is

 

 

installed. The workaround is to

 

 

reset the switch.

 

 

 

Page 16
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Cisco Systems 17053 appendix Day to once a month. This issue can

17053 specifications

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