10
Release Notes for the Cisco IE 2000 Switches, Cisco IOS Release 15.2(1)EY
NEW DOC # PENDING
Software Features
•
CLI-based setup program, as described in the switch hardware installation guide.
•
DHCP-based autoconfiguration, as described in the switch software configuration guide.
•
Manual assignment of an IP address, as described in the switch software configuration guide.
Software Features
Digital Optical Monitoring
Digital Optical Monitoring (DOM) is supported when using a DOM-capable SFP transceiver module.
For information about the switch models that have SFP or dual-purpose ports, see
Switch Models
Supported, page 3
. For information about DOM-capable SFP modules, see
SFP Modules Supported,
page 5
.
Note
DOM is not supported on downlink SFP ports.
DOM allows monitoring real-time parameters of the switch, such as optical input and output power,
temperature, laser bias current, and transceiver supply voltage. These parameters are monitored against
the threshold values. The real-time DOM parameters can be monitored using command line interface or
SNMP interface.
DOM is possible only with DOM-capable transceiver modules. When using an SFP module in a dual
purpose port, DOM is supported if the interface media type is configured to SFP or if global transceiver
monitoring is enabled.
Transceiver monitoring is enabled by default.
Precision Time Protocol (PTP)
Several enhancements were made to improve the implementation of Precision time Protocol (PTP).
•
End-to-End Transparent Clock (E2E TC) now supports at least 300 PTP messages per second. The
previous capacity was 10 - 20 PTP messages per second. The E2E TC timing performance also was
enhanced to frequency lock to the GMC, thereby reducing timing errors.
•
With the recommended settings, the Boundary Clock now supports eight clocks in a chain
(previously became unstable with four clocks). The timing performance also was enhanced to
improve stability and precision. Cisco recommends setting the logDelReqInterval to -2 (-2 to 6
supported) and the logSyncInterval to -1 (-1 to 1 supported) for chains of Boundary Clocks. The PTP
Clock must receive 50 Sync messages and 6 DelReq messages for a port to leave the
UNCALIBRATED state.
•
Added support for PTP management messages, such as example: CLOCK_DESCRIPTION, as
defined in Clause 15 of IEEE Std 1588-2008. These management messages are mandatory for CIP/
ODVA compliance.
