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Cisco ONS 15454 SDH Reference Manual, R4.6
April 2008
Chapter 15 Performance Monitoring
15.6.6 TXP_MR_2.5G and TXPP_MR_2.5G Card Performance Monitoring Parameters
MS-BBER Multiplex Section Background Block Error Ratio (MS-BBER) is the ratio
of BBE to total blocks in available time during a fixed measurement
interval. The count of total blocks excludes all blocks during SESs.
MS-UAS Multiplex Section Unavailable Seconds (MS-UAS) is a count of the
seconds when the section was unavailable. A section becomes unavailable
when ten consecutive seconds occur that qualify as MS-SESs, and it
continues to be unavailable until ten consecutive seconds occur that do not
qualify as MS-SESs. When the condition is entered, MS-SESs decrement
and then count toward MS-UAS.
MS-EB Multiplex Section Errored Block (MS-EB) indicates that one or more bits
are in error within a block.
Table 15-53 Near-End or Far-End PM Parameters for Ethernet and Fiber Channel Payloads
on TXP_MR_2.5G and TXPP_MR_2.5G Cards
Parameter Definition
Valid Packets A count of received packets that contain non-errored data code groups that
have start and end delimiters.
Invalid Packets A count of received packets that contain errored data code groups that
have start and end delimiters.
Code Group Violations A count of received code groups that do not contain a start or end
delimiter.
Idle Ordered Sets A count of received packets containing idle ordered sets.
Non-Idle Ordered Sets A count of received packets containing nonidle ordered sets.
Data Code Groups A count of received data code groups that do not contain ordered sets.
Table 15-54 Near-End or Far-End OTN G.709 PM Parameters for TXP_MR_2.5G
and TXPP_MR_2.5G Cards
Parameter Definition
Note Enterprise System Connection (ESCON), DV6000, SDI/D1 video, and high definition
television (HDTV) client signals are unframed payload data types. If the configured payload
data type is unframed, line threshold provisioning and performance monitoring are not
available.
BBE-SM Section Monitoring Background Block Errors (BBE-SM) indicates the
number of background block errors recorded in the OTN section during
the PM time interval.
ES-SM Section Monitoring Errored Seconds (ES-SM) indicates the errored
seconds recorded in the OTN section during the PM time interval.
SES-SM Section Monitoring Severely Errored Seconds (SES-SM) indicates the
severely errored seconds recorded in the OTN section during the PM time
interval.
Table 15-52 Near-End or Far-End Multiplex Section PM Parameters for STM-1, STM-4, and STM-16
Payloads on TXP_MR_2.5G and TXPP_MR_2.5G Cards (continued)
Parameter Definition