Troubleshooting guide

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Release Notes for Cisco ONS 15454 Release 7.0.2
OL-11368-01
New Features and Functionality
An STS grooming node (VAP source) does not carry VT circuits through a VTT. The STS grooming node
performs STS-level squelching for each STS timeslot at the switching node in case the VT-grooming
(VAP destination) node fails. The node dropping VT traffic performs VT-level squelching for each VT
timeslot in case the STS-grooming end node fails. No VT traffic on the VAP is protected during a failure
of the STS-grooming node or the VT-grooming node.
The VT squelch table provides BLSR VT group number and channel indications, and East and West
source information. To view the VT squelch table, double-click the STS with a check mark in the BLSR
STS squelch table window. The check mark appears on every VT-access STS; however, the VT-squelch
table appears only by double-clicking the check mark on the node dropping the VT. The intermediate
node of the VT does not maintain the VT-squelch table.
“Ring is Squelching STS Traffic” Condition
Release 7.0.x supports an informational Ring is Squelching STS Traffic (STS-SQUELCH-L) condition
that can be raised on an OC-N facility. The STS-SQUELCH-L condition indicates that traffic is
squelched due to node failure (traffic outage). If the node failure scenario includes the source or
destination node, then switching the nodes that switched the traffic away from the failure will squelch
all the STSs that originate from or are destined to the failure node. The condition resolves when the node
is no longer failing.
“Ring is Squelching VT Traffic” Condition
Release 7.0.x supports an informational Ring is Squelching VT Traffic (VT-SQUELCH-L) condition
that can be raised on an OC-N facility. The VT-SQUELCH-L condition indicates that traffic is squelched
due to node failure (traffic outage). If the node failure scenario includes the source node, the node
dropping VT will squelch VT traffic. The condition resolves when the node failure is recovered.
Link Consolidation
CTC provides the ability to consolidate the DCC, general communications channel (GCC), optical
transport section (OTS), server trail, and provisionable patchcord (PPC) links shown in the network view
into a more streamlined view. Link consolidation allows you to condense multiple internodal links into
a singular link. The link consolidation sorts links by class, meaning that all DCC links are consolidated
together, for example. You can access individual links within consolidated links using the right-click
shortcut menu. Each link has an associated icon.
Link consolidation is only available on non-detailed maps. Non-detailed maps display nodes in icon
form instead of detailed form, meaning the nodes appear as rectangles with ports on the sides. Refer to
the Cisco ONS 15454 Procedure Guide for more information about consolidated links.
Data Communications Network Tool
Release 7.0.x CTC includes a data communications network (DCN) tool that assists with network
troubleshooting for Open Shortest Path First (OSPF) networks. This tool, located in network view,
executes an internal dump command to retrieve information about all nodes accessible from the entry
point. The retrieved information is the same as you would get if you were to execute a dump using special
networking commands. The contents of the dump file can be saved or printed and furnished to Cisco
Technical Support for use in OSPF network support.