Release Notes
Table Of Contents

68 System Firmware Version 5.1.1.7
Summary
User Impact
Workaround
Traffic led solid green
with 1Gb and 100Mb
link speeds on
PC8024/PC8024F
Setting advertisement from other switches or IXIA
of 1Gb or 100Mb link speeds to 10G links on
8024, 8024F results in link up and traffic led to be
solid green.
None – Traffic LED Solid Green do not cause
any functional issues.
Config Lost for the
Portchannel on
removing a 2 Port 10 G
Module on the
PCM8024 switch
On boot up, the switch gives an error and rejects
all the config for the portchannel as well as the
TenGig interfaces in Bay1.
Remove port configuration of 10G module
before removing the module from the bay and
reboot the switch.
Release 4.1.0.19
Summary User Impact Workaround
Log message output snmpwalk will report error log message related to
CPU-port and vlan routing port
None – error messages do not cause functional
issues.
Secure HTTP Random
Characters
Under System Management -> Secure HTTP,
random characters maybe populating some of the
fields.
The CLI must be used to generate
certifications.
Release 4.1.0.6
Summary User Impact Workaround
PC7XXX cable
diagnostics for the Fiber
ports does not work.
Fiber port cable diagnostics are not available for
the PC7XXX.
None.
DUT delivers more
power than the PD
requested via LLDP in
high power mode.
DUT may draw more power than negotiated at
short cable lengths. PD may draw more power
than negotiated, but power loss due to cable
impedance is compensated for so that devices
with average or longer cable length will receive
adequate power.
None – system assumes 5.8W average loss due
to cable length and delivers 5.8W extra power
to ensure device receives requested power.
L3 routing NSF failover
data plane on dynamic
LAG - loss duration up
to 5 seconds for large
configurations
Interruption of voice, video and data service for
duration of loss. Data plane loss during failover
should not exceed 50 ms.
Disable portfast and auto-portfast on physical
ports configured in a LAG.
Trunk mode VLANs
transmit tagged frames
only
Not compatible with other vendors trunk modes.
Administrators can configure “general” mode
VLANs, which transmit PVID frames untagged
and all other VLAN frames tagged. General
mode is compatible with other vendor’s trunk
mode behavior.
Speed/duplex commands
available for interfaces
which require auto-
negotiation
Confusion about how to configure links.
Documentation and CLI prompt clearly states
which commands are applicable to which
interfaces. Only use speed/duplex commands
on fiber interfaces. Only use speed
auto/duplex auto commands on copper
interfaces.
ST : Stack member
response times to ICMP
ping requests in a 12 unit
stack are larger than for
stack master
No user impact expected. Observed occasional
outlier response time up to 500 ms for stack
members in a large stack configuration with
heavy traffic. Average response time is well
under 100 ms for stack members. All response
times are well within ping limits.
None required.
Issue with protocol based
VLAN configuration
migration.
The command
vlan protocol group
required a
string parameter in earlier versions; now it
requires an integer parameter.
The software recognizes if the group name is
alphanumeric, however it will not work when
the name of the group is numeric (for example
2, 3, etc.).