Cisco ONS 15327 Manual page 3

DDTS # CSCdx78825
The ONS 15327 XTC reboots after the XTC has received 64 or more ARP requests on a subnet different
from that of the XTC. This situation can occur when the network settings (IP address and netmask) are
incorrect for the craft Ethernet environment. The node may respond to Ethernet ARP requests via its
automatic host detection feature. If this feature is triggered more than 64 times, the node's XTC will
reboot. Removing the craft Ethernet connection resets the count, so this situation is unlikely to occur
with an End Network Element (ENE). To avoid this issue, ensure that the node is properly provisioned
for its craft Ethernet environment. In particular, ensure that the netmask is correct. For ENEs that depend
on automatic host detection, avoid leaving the craft Ethernet connected for more than one day at a time.
This issue is resolved in Release 3.4.
Upgrades from Release 1.0
If you wish to upgrade from Release 1.0 to Release 3.3, you must first upgrade to maintenance Release
1.0.2. If you are already running maintenance Release 1.0.1, you do not have to perform the intermediate
upgrade.
DDTS # CSCdx02680
If you create a VT circuit, set the DS1 port in service, generate any alarm, then set the port out of service,
you may see VT alarms that will not clear. To clear the alarms, delete the VT circuit. This issue will be
resolved in Release 3.4.
DDTS # CSCds23552
You cannot delete the standby XTC once it is removed. If you have two XTC cards and then decide to
operate with only one, you will get a standing minor alarm. The alarm cannot be removed by CTC. The
XTC is a combo card, combining the functionality of the ONS 15454 TCC+, cross connect, DS1 and
DS3 cards, with a protection group automatically provisioned. On the ONS 15454, similar behavior
occurs for the TCC+ card. The cross connect card for the ONS 15454 can only be deleted if there are no
circuits provisioned. DS1 and DS3 cards can only be deleted if they are not in a protection group. It is
not known at this time when or if this issue will be resolved.
DDTS # CSCdw71844
If a manual switch request is made when a higher priority request is present (in other words, SD/SF or
lockout), the user request will not be denied. This issue will be resolved in Release 3.4. As of Release
3.4, if a user initiated switch should not cause an actual switch (because of a higher priority request), the
switch will be denied.
If a switch is accepted but overridden at a later time because a higher priority request is initiated, the
current switch will be cleared. This applies to 1+1, UPSR/SNCP and BLSR/MS-SPRing.
DDTS # CSCdw95301
When there are large numbers of VT circuits (greater than 100) and when there is a lot of circuit activity
(for example, when there are a lot of updates), the circuits pane can be extremely slow to repaint, and
the user interface can fail to respond for several minutes. This issue will be resolved in a future release.
OL-2671-01
Release Notes for Cisco ONS 15327 Release 3.3
Caveats
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