Table Of Contents
Release Notes for Cisco ONS 15530
4-Port 1-Gbps/2-Gbps FC Aggregation Card
Functional Image Release 1.23
This document describes the features and caveats for the functional image, release 1.23, for the 4-Port 1-Gbps/2-Gbps FC aggregation card used with the Cisco ONS 15530 DWDM multiservice aggregation platform.
February 23, 2006
Text Part Number: OL-9735-01
This release note includes the following sections:
The 4-port 1-Gbps/2-Gbps FC aggregation card uses up to four small form-factor pluggable (SFP) optical transceivers to support client traffic. Each client interface can be configured using the command-line interface (CLI) for FC, fibre connection (FICON), or InterSystem Channel (ISC) links traffic at a 1-Gbps or 2-Gbps rate.
The 4-port 1-Gbps/2-Gbps FC aggregation card connects through four 2.5-Gbps electrical signals, or portgroup interfaces, to the switch module. The client port data streams must be mapped to one of these portgroup interfaces using the CLI.
The signal on the portgroup interfaces connects through the backplane and the CPU switch module to a 2.5-Gbps ITU trunk card, a 10-Gbps ITU trunk card, a 10-Gbps ITU tunable trunk card, or a 10-Gbps uplink card, where the signal is converted to/from an ITU channel. The cross-connections are configured using the CLI.
The 1-Gbps client traffic from a 4-port 1-Gbps/2-Gbps FC aggregation card is interoperable with the 8-port FC/GE aggregation card at the other end of the network. Any 1-Gbps FC, FICON, or ISC client signal can be transmitted between a 4-port 1-Gbps/2-Gbps FC aggregation card and an 8-port FC/GE aggregation card.
Note Open Fibre Control is supported only with FC and FICON encapsulation. Forward Laser Control is implicitly enabled with ISC.
For FC and FICON traffic, the node monitors the following conditions on the 4-port 1-Gbps/2-Gbps FC aggregation card:
•8b10b Code Violation and Running Disparity (CVRD) error counts
•Invalid transmission words
•Tx frame counts
•Rx frame counts
•Tx byte counts
•Rx byte counts
•Tx CRC errors
•Rx CRC errors
•Sequence protocol errors
•5 minute input/output rates
•Loss of Sync
•Loss of Light
For ISC traffic, the node monitors the following conditions on the 4-port 1-Gbps/2-Gbps FC aggregation card:
•CVRD error counts
•Loss of Light
•Tx frame counts
•Rx frame counts
•Frame rates (5 minute)
•Loss of Sync
Determining the Release of Your 4-port 1-Gbps/2-Gbps FC Aggregation Card Functional Image
This section describes the process you use to determine the existing functional image version installed on your 4-port 1-Gbps/2-Gbps FC aggregation card.
To display the functional image version in a 4-port 1-Gbps/2-Gbps FC aggregation card, use the following command in privileged EXEC mode:
The following example shows the hardware version and the functional image information for the 4-port 1-Gbps/2-Gbps FC aggregation card in slot 4:Switch# show hardware linecard 4--------------------------------------------------------------------------------Slot Number : 4/*Controller Type : 0x1111On-Board Description : ONS 15530 1G/2G Fibre Channel Aggregation ModuleOrderable Product Number: 15530-FC-4P=Board Part Number : 68-2014-02Board Revision : A0Serial Number : CNH08350243Manufacturing Date : 09/09/2004Hardware Version : 2.6RMA Number : 0x00RMA Failure Code : 0x00Functional Image Version: 1.23Function-ID : 0Version-ID (VID) : V01
Updating to a New Release
For detailed functional image upgrade instructions, refer to the Cisco ONS 15530 Software Upgrade Guide. To download the 4-port 1-Gbps/2-Gbps FC aggregation card functional image, go to the following URL:
Note After copying the
fi-ons15530-2xfc.A.1-23.exoimage to the Flash disk of the Cisco ONS 15530, download the image to the 4-port 1-Gbps/2-Gbps FC aggregation card (15530-FC-4P) using the reprogram CLI.
Caution A functional image reprogram cannot revert once the reprogram is started. Do not interrupt the reprogram procedure. Wait until it has finished before attempting any commands on the switch. Confirm that the image file download is done in binary mode and check file sizes before and after the download. A failure during reprogramming can result in the card being unusable.
New Features in Functional Image 1.23
The following new features are available for functional image 1.23, when combined with Cisco IOS software Release 12.2(29)SV or later:
•End-to-end speed negotiation
Note The end-to-end speed negotiation, oversubscription, and superportgroup features are supported only with FC and FICON encapsulations.
This section lists the caveats for the 4-port 1-Gbps/2-Gbps FC aggregation card functional image.
Use Table 1 to determine the status of a particular caveat and its relevancy to your functional image release. In the table, "C" indicates a fixed caveat, "O" indicates an open caveat, and "NA" indicates the caveat is not applicable to the release.
Table 1 4-port 1-Gbps/2-Gbps Aggregation Card Functional Image Release Caveat Reference
DDTS Number Release 1.0 Release 1.23
Caveat Symptoms and Workarounds
This section describes the open and resolved caveats for this release of the 4-port 1-Gbps/2-Gbps FC aggregation card functional image.
Symptom: Flow control does not become active when the 4-port 1-Gbps/2-Gbps FC aggregation card is interoperating between FC switches whose World Wide Switch Names are in a certain relative range. The link initializes normally and traffic passes without any errors, but flow-control remains inactive. Therefore, throughput compensation over distance is not realized.
The output of the show interface command for the affected twogigabitphy interface shows flow control as enabled but inactive.
Conditions: This symptom is seen when flow control is enabled in the 4-port 1-Gbps/2-Gbps FC aggregation card with Functional version 1.0.
Resolution: Upgrade to Functional version 1.23 or later.
Symptom: CRC-errored or Dropped/Out-of-Order/Duplicated frames may be transmitted by the 4-port 1-Gbps/2-Gbps FC aggregation card ports (with symmetric flow control configured and active) if the client device connected to remote port is operating in asymmetric credit mode.
EXCESS_FRAME_ALMalarm message may be logged by the (peer) Cisco ONS 15530 when the errors are being generated, or prior to the occurrence of the errors if conditions with potential to cause the error are detected on the link.
Conditions: This symptom is seen only if all the following conditions are true:
–The link has at least one 4-port 1-Gbps/2-Gbps FC aggregation card that has a Functional version lower than 1.23.
–If buffer credit sizes are configurable/readable on the end clients, the credit numbers at both ends are not the same.
–When flow control is disabled or inactive, the link runs without any errors.
–When the link is run with flow control enabled and active, the client device sees errors transmitted from the 4-port 1-Gbps/2-Gbps FC aggregation card port.
–Symmetric flow control is active on the 4-port 1-Gbps/2-Gbps FC aggregation card ports, and is indicated by
flow-control (symmetric)in the show interface output.
–If the peer card is a 4-port 1-Gbps/2-Gbps FC aggregation card,
EXCESS_FRAME_ALMalarm is detected on the peer Cisco ONS 15530.
–If the peer card is a Cisco ONS 15530 8-port FC/GE aggregation card (15530-GEFC-8P),
EXCESS_FRAME_ALMalarm is detected on the peer Cisco ONS 15530 (if supported).
Note If the remote card is a 8-port FC/GE aggregation card,
EXCESS_FRAME_ALMalarm message will be logged at the remote node only if the Functional version on that card is 2.30 or later, and Cisco IOS version on the remote Cisco ONS 15530 is 12.2(24)SV or later.
–The transmitted errors are not traceable to TX CRC errors on the interface.
–The transmitted errors are not traceable to hardware data parity errors (
QDR PARITY error countin the show controller output).
Workaround/Resolution: Perform any one of the following actions in decreasing order of preference:
–Upgrade the 4-port 1-Gbps/2-Gbps FC aggregation cards to Functional version 1.23 or later, and remove any symmetric configuration from the ports.
–Configure asymmetric mode on all the 4-port 1-Gbps/2-Gbps FC aggregation card ports in the affected link. (Symmetric mode is the default in Functional versions prior to 1.23).
–If feasible, configure equal buffer credits on the client devices at both ends of the FC/FICON link. Symmetric/asymmetric mode configuration on the 4-port 1-Gbps/2-Gbps FC aggregation card is then ignored, and both modes work equally well.
Symptom: Interoperation of the 4-port 1-Gbps/2-Gbps FC aggregation card with the 8-port FC/GE aggregation card is possible only in the symmetric mode flow control.
Conditions: This occurs when all the following conditions are satisfied:
–The 4-port 1-Gbps/2-Gbps FC aggregation card has a Functional version lower than 1.23.
–The 4-port 1-Gbps/2-Gbps FC aggregation card is configured to operate in asymmetric mode flow control by CLI.
–The 8-port FC/GE aggregation card has Functional version 2.30 or later.
–Client credit behavior is asymmetric.
Resolution: Upgrade the 4-port 1-Gbps/2-Gbps FC aggregation card to Functional version 1.23 or later. In addition, it is recommended to remove any symmetric or asymmetric configuration from the flow control CLI.
Symptom: Errored data may temporarily be transmitted from the 4-port 1-Gbps/2-Gbps FC aggregation card when the card transitions from the flow control active state to inactive state (due to link events such as Link Reset by the FC client). This causes the client FC device to record Transmission Word Errors. The burst of errors are temporary and settles to a clean state after re-login of the link. This symptom occurs rarely.
Conditions: This symptom is observed only when flow control is enabled on the Cisco ONS 15530 4-port 1-Gbps/2-Gbps FC aggregation card.
Resolution: Upgrade the functional image to version 1.23 or later.
Symptom: When end-to-end speed negotiation is enabled on the twogigabitphy interfaces of the 4-port 1-Gbps/2-Gbps FC aggregation cards and the FC client devices, the twogigabitphy interfaces may lock to 1 Gbps even though the maximum negotiable speed is 2 Gbps. Error-free link connectivity and operation are maintained and the only impact observed is the reduced throughput. This problem occurs rarely.
Workaround: Perform any of the following operations:
–Perform shut/no shut on both the twogigabitphy interfaces in the affected link.
–Perform shut/no shut on the affected interfaces of the client devices that are connected to the 4-port 1-Gbps/2-Gbps FC aggregation card.
–Perform encapsulation/no encapsulation on both the twogigabitphy interfaces in the affected link.
Symptom: CRC errors are observed on the FC client devices that are connected to the 4-port 1-Gbps/2-Gbps FC aggregation card when jumbo GE traffic is mixed on the same 10-Gbps trunk.
Conditions: This symptom is seen when the GE traffic (with frame size greater than 1500 bytes) and the FC traffic from the 4-port 1-Gbps/2-Gbps FC aggregation card pass through the same 10-Gbps trunk card, and any one of the following conditions is satisfied:
–Flow control is enabled on the 4-port 1-Gbps/2-Gbps FC aggregation card.
–The affected FC link passes through a superportgroup on the 4-port 1-Gbps/2-Gbps FC aggregation card.
Limitations and Restrictions
This section provides limitations and restrictions for Cisco ONS 15530 hardware and software.
4-port 1-Gbps/2-Gbps FC aggregation card
The following are the limitations of the 4-port 1-Gbps/2-Gbps FC aggregation card:
•Errors are transmitted by the 4-port 1-Gbps/2-Gbps FC aggregation card to the clients in some transitional events such as configuration changes on the card.
Rarely, client FC device port may get into the error disabled state under such conditions.
Note The above mentioned limitation can be worked around by following the procedures documented in the Cisco ONS 15530 Configuration Guide.
•The reported byte count and bit rate values for the ISC service are higher than the actual values. They are inclusive of all data in the ISC frame such as frame headers, trailers, or checksums. The actual payload byte count and bit rate will therefore be lower than the displayed value.
Use this release notes in conjunction with the following referenced publications:
•Cisco ONS 15530 Configuration Guide
Provides procedures to configure and manage the Cisco ONS 15530.
•Regulatory Compliance and Safety Information for the Cisco ONS 15500 Series
Provides the regulatory compliance and safety information for the Cisco ONS 15500 Series.
•Cisco ONS 15530 Planning Guide
Provides detailed information on the Cisco ONS 15530 architecture and functionality.
•Cisco ONS 15530 Hardware Installation Guide
Provides detailed information about installing the Cisco ONS 15530.
•Cisco ONS 15530 Optical Transport Turn-Up and Test Guide
Provides acceptance testing procedures for Cisco ONS 15530 nodes and networks.
•Cisco ONS 15530 Cleaning Procedures for Fiber Optic Connections
Provides processes and procedures for cleaning the fiber optic connectors and component interfaces of the Cisco ONS 15530.
•Cisco ONS 15530 Command Reference
Provides commands to configure and manage the Cisco ONS 15530.
•Cisco ONS 15530 System Alarms and Error Messages
Describes the system alarms and error messages for the Cisco ONS 15530.
•Cisco ONS 15530 Troubleshooting Guide
Describes how to identify and resolve problems with the Cisco ONS 15530.
•Network Management for the Cisco ONS 15530
Provides information on the network management systems that support the Cisco ONS 15530.
•Cisco ONS 15530 TL1 Commands
Provides a full TL1 command and autonomous message set including parameters, AIDs, conditions and modifiers for the Cisco ONS 15530.
•MIB Quick Reference for the Cisco ONS 15500 Series
Describes the Management Information Base (MIB) objects and explains how to access Cisco public MIBs for the Cisco ONS 15500 Series.
•Cisco ONS 15530 Software Upgrade Guide
Describes how to upgrade system images and functional images on the Cisco ONS 15530.
•Introduction to DWDM Technology
Provides background information on the dense wavelength division multiplexing (DWDM) technology.
•Cisco IOS Configuration Fundamentals Configuration Guide
Provides useful information on the CLI (command-line interface) and basic shelf management.
This publication uses the following conventions:
Note Means reader take note. Notes contain helpful suggestions or references to material not covered in the document.
Caution Means reader be careful. In this situation, the user might do something that could result in equipment damage or loss of data.
Where to Find Safety and Warning Information
For safety and warning information, refer to the Cisco Optical Transport Products Safety and Compliance Information document that accompanied the product. This publication describes the international agency compliance and safety information for the Cisco ONS 15xxx systems. It also includes translations of the safety warnings that appear in the ONS 15xxx system documentation.
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This document is to be used in conjunction with the documents listed in the "Related Documentation" section.
Any Internet Protocol (IP) addresses used in this document are not intended to be actual addresses. Any examples, command display output, and figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and coincidental.
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