5-23
Cisco ONS 15454 DWDM Installation and Operations Guide, R6.0
September 2005
Chapter 5 Provision Transponder and Muxponder Cards
DLP-G319 Change the TXP_MR_10G or TXP_MR_10E Card Line Thresholds for 10G Ethernet LAN Phy
Step 6 From the Alarm Type drop-down list, indicate whether the event will be triggered by the rising threshold,
falling threshold, or both the rising and falling thresholds.
Step 7 From the Sample Type drop-down list, choose either Relative or Absolute. Relative restricts the
threshold to use the number of occurrences in the user-set sample period. Absolute sets the threshold to
use the total number of occurrences, regardless of time period.
Step 8 Type in an appropriate number of seconds for the Sample Period.
Step 9 Type in the appropriate number of occurrences for the Rising Threshold.
For a rising type of alarm, the measured value must move from below the falling threshold to above the
rising threshold. For example, if a network is running below a rising threshold of 1000 collisions every
15 seconds and a problem causes 1001 collisions in 15 seconds, the excess occurrences trigger an alarm.
Step 10 Enter the appropriate number of occurrences in the Falling Threshold field. In most cases a falling
threshold is set lower than the rising threshold.
A falling threshold is the counterpart to a rising threshold. When the number of occurrences is above the
rising threshold and then drops below a falling threshold, it resets the rising threshold. For example,
when the network problem that caused 1001 collisions in 15 seconds subsides and creates only
799 collisions in 15 seconds, occurrences fall below a falling threshold of 800 collisions. This resets the
rising threshold so that if network collisions again spike over a 1000 per 15-second period, an event again
triggers when the rising threshold is crossed. An event is triggered only the first time a rising threshold
is exceeded (otherwise, a single network problem might cause a rising threshold to be exceeded multiple
times and cause a flood of events).
Step 11 Click OK.
Step 12 Return to your originating procedure (NTP).
etherStatsOctets Total number of octets of data (including those in bad packets)
received on the network (excluding framing bits but including FCS
octets).
etherStatsCRCAlignErrors Total number of packets received that had a length (excluding
framing bits, but including FCS octets) of between 64 and
1518 octets, inclusive, but had either a bad FCS with an integral
number of octets (FCS Error) or a bad FCS with a nonintegral
number of octets (Alignment Error).
rxPauseFrames Number of received IETF 802.x pause frames
rxControlFrames Number of MAC control frames passed by the MAC sublayer to the
MAC control sublayer.
rxUnknownOpcodeFrames Number of MAC control frames received that contain an opcode
that is not supported by the device.
Table 5-7 TXP_MR_10G and TXP_MR 10GE LAN Phy Variables (continued)
Variable Description
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