Table Of Contents
Release Notes for Cisco ONS 15305 Release 3.0
Release notes address closed (maintenance) issues, caveats, and new features for the Cisco ONS 15305. For detailed information regarding features, capabilities, hardware, and software introduced with this release, refer to Release 2.0 of the Cisco ONS 15305 Installation and Operations Guide. For the most current version of the Release Notes for Cisco ONS 15305 Release 3.0, visit the following URL:
Cisco also provides Bug Toolkit, a web resource for tracking defects. To access Bug Toolkit, visit the following URL:
Changes to the Release Notes
This section documents supplemental changes that have been added to the Release Notes for Cisco ONS 15305 Release 3.0 since the production of the Cisco ONS 15305 System Software CD for Release 3.0. No changes have been added to the release notes for Release 3.0.
Review the notes listed below before deploying the ONS 15305. Caveats with tracking numbers are known system limitations that are scheduled to be addressed in a subsequent release. Caveats without tracking numbers are provided to point out procedural or situational considerations when deploying the product.
Network Element Caveats
OSPF routing on the MNGT-port is only supported when node operates as IPUN GW.
Enabling OSPF routing on MNGT-port will only be successful for NE's configured as IP unnumbered gateway. This is a limitation in the IP unnumbered router design.
Enable IPUN gateway. Be aware that several IPUN gateways in one IP segment may cause suboptimal routing. Consider assigning unique IP segments to each IP unnumbered router in the topology. This will provide an expandable network configuration.
MNGT port stops responding because of MAC addresses conflict.
MNGT port not responding.
The ONS 15305 has a MNGT port and bridge ports connected to the same switch. STP or GVRP is enabled on the ONS 15305. The switch receives frames with the same MAC address from different ports, and therefore, only the last source port is stored in MAC address table. When the last frame is received from the bridge port the MNGT port becomes unavailable for management traffic.
Disable STP and GVRP on ONS 15305, or enable STP on the switch, or connect the MNGT port and bridge port to different switches.
This issue is under investigation.
The incoming IGMP packets are VLAN-tagged, and holding the VID of a VLAN that is configured on the device. The ingress port is not a member of a named VLAN. In some rare configurations this could create a loop in the topology, and a storm of replicated IGMP packets. The IGMP packets reaches VLAN even though the ingress port is not member of the VLAN. Thus VLAN-tagged IGMP packets bypass ingress filtering.
There is usually no need for a configuration that allows this to happen. Verify that the VLAN configuration in the topology is consistent and does not contain any partially configured links.
This issue is under investigation.
Changing system mode from IP (default) to IP un-numbered implies problems.
Experiences from field (labs) tell us that current implementation have limitations in software for changing system mode from IP (default) to IP un-numbered.
Even though there are IP addresses and routing protocols configured on NE the operator does not receive any notification, which could have prevented the change until necessary configuration changes have been maintained.
From a software design point-of-view, the configuration of system mode for DCN routing is seen as a strategically choice, which the operator should configure prior to configure IP address and protocols on the device. The reason for this is because the network design is different for each of the system modes.
The consequence for changing the system mode from IP to IP un-numbered is complicated and you may experience severe problems. Worst-case scenario is not being able to re-obtain IP connectivity to NE.
Generally the safest alternative is to erase the configuration prior to changing the system mode. Alternatives are under investigation.
The following steps might be successful:
Step 1 Locally connect to MNGT-port and connect with Cisco Edge Craft.
Step 2 Remove all IP addresses in the IP interface table except for the MNGT-port address (IF=1000).
Step 3 Remove all static configured routes (even the 0.0.0.0 route).
Step 4 Disable active routing protocols (RIP and/or OSPF).
Step 5 Locally connect to the device via ONSCLI (VT100).
Step 6 Remove the IP address assigned to the management port (ONSCLI>ip ip=0.0.0.0 sub=0.0.0.0).
Step 7 Set system mode to IP unnumbered (IPUN) and reset the device.
Step 8 Change the IP address (MNGT-port) to fit your new network design and reconfigure the SNMP community.
Step 9 Reconnect to the device with Cisco Edge Craft.
Step 10 Commission IP unnumbered configuration: IP over PPP (DCC), OSPF, etc.
Note This procedure cannot be performed via remote access to the network element.
Port priority is not strictly enforced when flow control is on. This can occur under the following conditions. The four input ports are set for 100 MB (64 bytes).
– Port 1 priority is set for 6
–Port 2 priority is set for 4
–Port 3 priority is set for 0
–Port 4 priority is set for 1
VLAN tagging is turned off for all of the FE ports while VLAN tagging is turned on for the STM1 trunk port. (This adds an additional 4 bytes to each stream.) Flow control is turned on for all the FE ports When all the ports are turned on, only Port 1 should have priority. Instead, traffic is received on both Ports 1 and 2 at almost 60/40% on each port (81,168 versus 60,876). This issue will be resolved in a future release.
The failure is present in different corners and at different temperatures. We have Errors (#14 B3 errors in 24 hour of test, #1 Loss of Pattern) on a STM-1 link with #3 STM1-8 modules. We records also packet lost on a FE link mapped into STM-1 optical path. When these errors / packet lost happens, we record from Cisco Edge Craft a lot of "DXC inlet bit error" alarms. No other type of alarms has been recorded from the Cisco Edge Craft. All these 3 event happens at the same time, so the root cause should be the same.
The fail is related on module STM1-8. During EDVT corner 5 & corner 7:
Corner 5: power supplies on the modules at -5% except power supply DC-DC module at +5%, Temperature= +50°C
Corner 7: each power supplies at -5%, Temperature= +50°C this module does not starts. This cause fail on the traffic path related to this modules.
The number of fails is:
• C5:board_3 module STM1-8 SN0307008095, 2 times / 10 tests
• C7:board_3 module STM1-8 SN0307008095, 1 time / 10 tests
• C7:board_4 module STM1-8 SN0303006397, 1 time / 10 tests
When this fail happens, record the following alarm from the Cisco Edge Craft: "slot3 inlet Fail DXC inlet failure." 64 byte packets are lost when testing flow control
When sending 100 Mb from two ports to a single port, the packets are lost if the size is 64 byte. When the size is increased to 75 byte, the packet loss issue goes away.
This type of traffic is not typical for a device in normal operation but it can occur in a lab test setup.
No pause packets received on ports sending traffic to a congested mirrored port.
If a mirrored port becomes congested and flow control is enabled, no pause packets are generated toward ports belonging to other modules. Flow control is not working properly if ports used for mirroring become congested. If traffic to a mirrored port is sent from a LAN port situated in a different module than the mirrored port pause packets are not received and mirrored packets are lost. The real traffic flow is not disturbed by the mirrored port flow control problem, and the copy port traffic handling is working fine.
When operating in L2 mode, Ethernet frames with MAC destination address in the range 01:80:C2:00:00:10 to 01:80:C2:00:00:FF are not correctly filtered due to limitations in the switch ASIC. Special steps are taken to forward 0 1:80:C2:00:00:14 and:15 (IS hello). 01:80:C2:00:00:14 and:15 are not forwarded if one is employing Provider VLAN by using Ethertype 0xFFFF (legacy provider VLAN).
Legacy VLAN tunneling in use.
Use protocol tunneling supported by GE-2+MAP and E100-8+MAP to provide transparent Ethernet (with or without provider VLAN).
Same priority and same packet size yields different traffic flows.
There are 4 streams setup each has the same packet size (64 byte) going across 100 Mb STM-1 path to another ONS 15305. Each of the streams can be off as much as 50%. This is not always the case, sometimes the traffic can be equally distributed. However, using random packet sizes, the distribution seems to be more equal.
This type of traffic in not typical for a device in normal operation, but it can occur in a lab test setup.
Unfair distribution of intermodular traffic with flow control can occur. If traffic is sent from several ports in different modules and flow control is active, traffic throughput is less for ports belonging to same module as the congested. For example, if Port 2 module 1, port 1 module 2, and port 1 module 3 send 100Mb traffic streams to port 1 module 1, where all ports have flow control enabled, the result is that more traffic is sent from the ports in module 2 and 3 compared to what is sent from the port in module 1. No packet loss from any module occurs. This issue will be resolved in a future release.
AbortTftp events reported on unsuccessful ping.
When using \ping utility\ from Cisco Edge Craft, and the ping is not successful, abortTftp events are reported. Tftp events are not relevant in this context.
802.1p does not work satisfactorily for WAN ports on 4xFE+4xMAP, 8xSTM-1+8xMAP and 8xMAP
In some cases the different priority tags of frames going out on WAN ports are ignored.
The number of VC-12s allocated to a WAN port is less than 47 (i.e. the capacity of the WAN link is less
than 100M it/s). The switch sees the wan port as an FE port, and will not see the need for prioritizing
between the frames. Thus adapting the traffic to the actual bandwidth is handed over to the FPGA
mapping the frames into SDH.
Solved for 2xGE + SMAP and 8xFE + SMAP modules.
This issue is under investigation.
Unnecessary LINK_DOWN events reported in history after boot/restart.
DCC Link "down" events reported in "notification history" after boot.
All DCC channels, even if not represented by DCC applicable HW, reports LINK "DOWN" in notification history after device power up (restart).
This issue is under investigation.
Some dccR and dccM Mode field may reset to "Not Used" after upgrade to R2.0.x in IP numbered mode.
Mode fields for all pre-provisioned dccR and dccM must be revisited and reconfigured for "Poverty."
Reverting from Release 2.0.x to 1.1.1 fails.
The following procedure must be used to successfully revert to Release 1.1.1 after upgrading to release 2.0:
1. Main card firmware, 45004-70AA_PM_ ED05.bin, must be uploaded first.
2. Software file, 45004-77AB_PM_ED06.bin, must be uploaded.
3. Definition file, 55004-01AB_PM_ED06.def, must be uploaded.
The Mac table overflow "Duration Timer" does not increment. After overloading the forwarding database a "bridge table overflow" occurs, but the duration of the condition stays at 0h 0m 0s.
CTC is only available when running in system mode IP unnumbered.
If running IP numbered, use Cisco Edge Craft.
CSCsd53022 Alarm Profiles
It is not possible to view or modify severity of alarms in the Alarm Profile Editor.
Note that if CTC is used for storing a new Alarm Profile all severities are set to critical.
Use Cisco Edge Craft
CSCsd53035 RS Path Trace
It is not possible to manage RS Path Trace.
Use Cisco Edge Craft.
CSCsd53039 HO VC Path Trace
It is not possible to manage HO VC Path Trace.
Use Cisco Edge Craft.
CSCsd53044 Ether/WAN Path Trace
It is not possible to manage Ether/WAN Path Trace.
Use Cisco Edge Craft.
CSCsd53050 PDH Path Trace
It is not possible to manage PDH Path Trace.
Use Cisco Edge Craft.
It is not possible to provision or maintain IPPM. IPPM Performance Monitoring is not available.
Use Cisco Edge Craft.
Optical RX Level is not available.
Use Cisco Edge Craft.
Ethernet statistics are not available.
Use Cisco Edge Craft.
CSCsd08986 Create Cross-connects Only (TL-1 like)
The circuit creation wizard gives the option of creating cross-connects only (TL-1 like). This is not supported
Use Cisco Edge Craft.
CSCsd53068 Alarms Indicating Structuring Mismatch
If there are alarms indicating structuring mismatch, and no partial circuits, there might be stranded structuring/cross-connects.
Use Cisco Edge Craft to clean up manually.
CSCsd53070 SNCP Switching
When switching to the Circuit > Edit pane it occasionally appears that not all members are switched. The switch is actually performed on all members, but there is a display issue.
Perform a Synchronize with the node from the Provisioning > General tab.
CSCsd53083 Shelf View Alarm Color
When an alarm state changes, the alarm color in shelf view occasionally is not updated accordingly.
Use Synchronize Alarms.
CSCsd53093 Edit VCAT Circuit
It is not possible to add VCAT members after a VCAT circuit has been created.
Delete the circuit and recreate with the correct number of members.
CSCsd53101 Alarm Display
The LOM alarm and TIM alarm are displayed with different IDs in network view and shelf view.
CSCsd53104 Invalid LP-UNEQ Alarms when Deleting PDH Circuits
When PDH circuits are deleted, LP-UNEQ alarms are raised.
Set the port OOS.
CSCsd53109 SNCP Protected VCAT Circuits
Working and protect paths are not shown in different colors.
Conditions are not displayed in the Conditions tab.
Use Cisco Edge Craft.
Other clients are not updated when Ether bridge parameters are edited.
Modifications in the three tabs under shelf view > Provisioning > Ether Bridge are not reflected on other clients.
Use the Reset button to refresh models.
CSCsc54466 Modify VLAN Tagging from CTM
When a modification is performed from CTM, other clients are not updated accordingly, while if the modification is performed from CTC, other clients are updated.
In CTC, use "Synchronize with Node" in the shelf view > Provisioning > General tab.
In CTM, move the NE OOS and move it back IS.
Firewall Considerations for CTC vs. NEs. The following settings and values apply to firewalls when using CTC with the ONS 15305.
•SNMP SET/GET—Use UDP 161.
•SNMP traps—Use UDP 162, 10162, or 13000 (Solaris 1099).
•Bulk Transfer— The default TCP range is 4500-4510.
•TFTP (software download and config upload)—Use UDP 69.
•Time protocol (RFC868)—Use UDP 37.
•Telnet (ONSCLI)—Use TCP 23.
Circuits Shown as Partial
Circuits occasionally show status "Partial." This can be due to network element discovery that is incomplete, or to incomplete circuit definition.
Network element discovery/rediscovery must be complete before the circuits are fully discovered. If network element discovery is complete, but still the circuits show as "Partial," delete and recreate the affected circuits.
Transient Alarms During Circuit Creation
During circuit creation or circuit deletion transient alarms might occur. This is expected behavior.
Transient Loss of Connection
Transient loss of CTC connection to the network element can occur. This is related to the timeout of SNMP requests, or the number of simultaneous TCP connections.
None, the network element is rediscovered when connectivity is recovered.
Deleting VCAT Circuits
Transient loss of CTC connection to the network element can occur if the network element or DCN network is heavily loaded and SNMP requests time out.
Deleting VCAT circuits can typically result in this behavior. If a VCAT delete operation fails and CTC reconnects to the NE, remaining alarm conditions will be present. You can continue deleting any partial circuits still remaining, and all alarms related to the partial circuit(s) should be cleared. If alarms remain, navigate to the card view of the circuit end points and apply the Reset BW (reset bandwidth) check button. This will set the administrative bandwidth of the port to 0 and clear all alarm conditions associated with the port.
Deleting VCAT members from VCAT Circuits
The CTC Network Circuit Provisioning wizard allows CTC users to delete VCAT members from VCAT circuits in any order, without issuing any warning message; however, the following rules governing deletion of VCAT members that start, terminate, or end on an ONS 15305 NE apply:
1. You can only delete 1 circuit member at a time.
2. You can only delete the LAST VCAT member of any VCAT circuit.
If these rules are not followed, deletion of VCAT circuits will result in erroneous circuits and critical alarms from the ONS 15305 NE. The only way to amend the situation caused by deleting wrong VCAT member(s) is to delete the entire VCAT circuit and create a new one.
Due to the design of the core CTC software download mechanism, it is not possible to initiate or monitor software download jobs in network view for ONS 15305 nodes. Navigate to the shelf view on each node to perform these tasks. Avoid software download from two CTC instances on the same PC. TFTP port contention might result. The same might occur if you are running Cisco Edge Craft on the same PC as the CTC session. If a download in CTC fails, shut down CEC and try again.
SNMP Trap Port Management
CTC for the ONS 15305 SDH requires listening access to the UDP port 162. For standard SNMP traps, a CTC instance starting up will first try to access port 162. It will then start an RMI-based service that allows other CTC instances on the same computer to receive traps as well. If the CTC instance fails to acquire use of port 162, it will try to connect to an available RMI-based trap distribution service.
Usage in the Solaris Operating System
When using the ONS 15305 SDH in a Solaris environment without required privileges to access port 162, a separate process must be present for forwarding port 162 traps to port 10162.
Concurrent Operation of Cisco Edge Craft and CTC Reserved Ports
The reserved SNMP port can only be held by one application at the time, so concurrent operation of Cisco Edge Craft and CTC should be avoided. For example, software download uses TFTP as the transport protocol. The TFTP port must be available, and with required privileges, to the management interface in order for the download to succeed without incident.
Number of Simultaneous Clients
There is a limit of 4 concurrent TCP connections to an ONS 15305 network element. The consequence is that no more than two CTC instances (including CTM) should be run on an NE simultaneously. If a Network Element is responding to a ping, and to Cisco Edge Craft, but not to CTC, this is most likely the issue.
Web Server Content Corrupt
The software for the management application (CTC) downloads directly to the NE Compact Flash. If the download fails it might corrupt the content of the Compact Flash.
If CTC is available, perform a software download of the management application.
If CTC is not available use Cisco Edge Craft to perform software download of the management application.
Note Always perform a manual reboot of the NE after the download of management application is complete.
CTC on PCs with Two IP Interfaces
If CTC is running on a PC with two or more IP interfaces, the operation of CTC can be affected by
disabling one of them.
Restart CTC after disabling an interface.
It is not possible to edit a user.
Delete the user and create a new user.
Resolved Caveats for Release 3.0
This section highlights the resolved caveats for Release 3.0.
•CSCeg58260. System-up-time should be able to store up-time up to approximately 497 days. Experience shows this counters wraps around well before (approximately 40 days).
•CSCeg58295. Disabling OSPF causes device-restart if Stub area exists (IP-Numbered mode only). Device restarts when disabling OSPF if stub area exists.
•CSCeg58300. Static Unicast Table (number of entries) causes device-restart. Administratively set a value for Unicast-Global-Forwarding Table causes device restart. If configuring a value for Unicast-Global-Forwarding table "AfterReset" lower than the number of static entries in the table, and then select software reset for the device, a device restart will be experienced.
•CSCeg58312.When the setting for aging time is set above 650 seconds, aging still starts at 650 seconds.
•CSCeg58372. There is an RSTP and GVRP conflict.If both RSTP and GVRP run simultaneously, a device-restart may be experienced when disabling GVRP.
•CSCeg58388. Device reboots if switching OSPF InterfaceType from "point-to-point" to "broadcast", or if disabling OSPF while InterfaceType is "point-to-point". This issue is observed when OSPF is enabled, the OSPF Interface table is populated and the InterfaceType of an entry in the OSPF Interface table is changed to "point-to-point".
•CSCeg58398. Device initiates an additional boot sequence when restarted after CDB-restoration, to clean up invalid configuration data, after which the ProviderTags parameter is set to "disabled". VLAN membership or tag status of an Ethernet port has been changed after the parameter ProviderTags has been enabled, and the device has been rebooted (due to software/firmware upgrade, or restore of configuration database).
•CSCef88892. When first configuring IP numbered DCN management link between ONS15305 and ONS15454SDH, the link may not come up. For the DCN link to come up, one must toggle the mode field, on ONS15305, from "IpOverDcc" to "Not Used" then back to "IpOverDcc".
•CSCeg58364. Auto negotiation for Flow control on LANx-ports does not work (2xGE_SMAP only).The PAUSE-capable bit is not announced during auto negotiation when Flow Control is set to AutoNeg.
•CSCeg58380. SNC Protected unidirectional cross-connection not supported. When one direction of a path forms part of an SNC protected unidirectional cross-connection, the other direction can not form part of a different SNC protected unidirectional cross-connection. But the two directions can form part of two different unidirectional un-protected cross-connections. This applies to unidirectional cross-connections on all path layers.
•CSCsc16719. IS-IS multicast frames are not properly filtered. The Ethernet switch discarded large IS-IS multicast frames. Originally frames with destination MAC address 01:80:C2:00:00:14 and :15 have to be forwarded by the CPU due to ASIC limitations. A software fix introduced for a MTU issue to resolve problems with IP connectivity in a large scaled DCN introduced the problem. This fix caused IS-IS multi-cast frames of sizes above 1500 was not properly forwarded anymore.
New Features and Functionality
This section highlights new features and functionality for Release 3.0. For an overview of features of the ONS 15305, consult the Cisco ONS 15305 Installation and Operations Guide, Release 2.0.
The following additional features have been added for Release 3.0.
•A CTC management application can be downloaded to the ONS15305 using the NE Maintenance interface in Cisco Edge Craft Release 2.2.
This section lists any documentation related to release 3.0 of Cisco ONS 15305.
• Release Notes for Cisco ONS 15302 Release 2.0
• Release Notes for Cisco ONS 15305 Release 2.0
• Release Notes for Cisco Edge Craft Release 2.2
• Cisco ONS 15305 Quick Installation Guide, Release 2.0
• Cisco ONS 15305 Installation and Operations Guide, Release 2.0
•Cisco ONS 15305 Cisco Transport Controller Operations Guide, R3.0
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