Cisco Systems ONS 15600 manual 12-13

Chapter 12 Performance Monitoring

12.6.2 ASAP Card Ethernet Performance Monitoring Parameters

Table 12-6	ASAP Ethernet Statistics Parameters (continued)
Parameter		Meaning
Tx Multicast Packets		Number of broadcast packets transmitted since the last counter
		reset.
Rx Bytes		Number of bytes received since the last counter reset.
Tx Bytes		Number of bytes transmitted since the last counter reset.
Rx Errors		The number of inbound packets (or transmission units), that
		could not be delivered to a higher-layer protocol because of
		errors.
Tx Errors		The number of outbound packets (or transmission units), that
		could not be transmitted because of errors.
Rx FCS errors		Number of packets with a frame check sequence (FCS) error.
		FCS errors indicate frame corruption during transmission.
Rx Align errors		Number of packets with received incomplete frames.
Rx Runts		The total number of packets received that were less than
		64 bytes long (excluding framing bits, but including FCS bytes)
		and were otherwise well formed.
Rx Jabbers		The total number of packets received that were longer than
		1518 bytes (excluding framing bits, but including FCS bytes),
		and had either a bad FCS with an integral number of bytes (FCS
		error) or a bad FCS with a nonintegral number of bytes
		(alignment error).
Rx Giants		The total number of packets received that were longer than
		1518 bytes (excluding framing bits, but including FCS bytes)
		and were otherwise well formed.
Rx Discards		The number of inbound packets that were chosen to be
		discarded even though no errors had been detected to prevent
		their being deliverable to a higher-layer protocol. One possible
		reason for discarding such a packet could be to free up buffer
		space.
Tx Discards		The number of outbound packets that were chosen to be
		discarded even though no errors had been detected to prevent
		their being transmitted. One possible reason for discarding such
		a packet could be to free up buffer space.
Rx Pause Frames		Number of received Ethernet IEEE 802.3z pause frames.
Tx Pause Frames		Number of transmitted IEEE 802.3z pause frames.
Port Drop Counts		Number of received frames dropped at the port level.
etherStatsDropEvents		Number of received frames dropped at the port level.
etherStatsOctets		The total number of bytes of data (including those in bad
		packets) received on the network (excluding framing bits but
		including FCS bytes.
etherStatsPkts		The total number of packets (including bad packets, broadcast
		packets, and multicast packets) received.

Cisco ONS 15600 Reference Manual, R7.2

12-13