Performance monitoring

Performance counters

On the VC-12, VC-3 or VC-4 termination points connected to a WAN port, standard SDH performance monitoring can be activated. The same counters that apply for VC-12, VC-3 or VC-4 termination points on any other port also apply to the VC-12, VC-3 or VC-4 termination points on a WAN port.

Apart from this standard SDH performance monitoring, a limited amount of counters that are dedicated to LAN/WAN ports are defined. Activation of these counters can be established by setting:

• the LAN/WAN port mode to monitored

• selecting a LAN port or WAN port as active PM point

• setting the PM point type to LAN or WAN.

The supported counters are:

• CbS (total number of bytes sent)

• CbR (total number of bytes received)

• pDe (total number of errored packets dropped)

Note that CbS and CbR are rather traffic monitoring counters than performance monitoring counters, as they give insight in the traffic load in all places in the network. pDe is a real performance monitoring counter as it gives an indication about the performance of the network. Only unidirectional PM is supported for these parameters. See the following figure for the location of the measurements. Note that because of the difference in units, bytes versus packets, the counters cannot be correlated with each other. Also the counter for dropped packets considers only packets dropped due to errors, and does not include packets dropped due to congestion.

Ethernet PM History Bin

The 1643 AM/1643 AMS supports the Ethernet performance monitoring history bin and can be set to monitor sixteen performance monitoring criteria for 15 minute bins and one for 24 hour bins.

The 1643 AM/1643 AMS supports the ITM-CIT to retrieve all SDH and Ethernet PM History bins including the 16 x 15 minute bins and 1 x 24 hour bins.

The following sections describe the Ethernet performance monitoring counters.

Enhanced Basic Ethernet PM Counters

The 1643 AM/1643 AMS supports byte and frame related performance monitoring per port. Users can select any individual LAN or WAN port that is terminated in the 1643 AM/1643 AMS for performance monitoring (including binning and thresholding). The following features are applicable to the X8PL, X4IP, and X5IP option cards.

The 1643 AM/1643 AMS supports the following PM counters for the X8PL, X4IP, and X5IP option cards:

• pCbR: Ethernet Incoming Number of Bytes

• pCbS: Ethernet Outgoing Number of Bytes

• eINF: Ethernet Incoming Frames

• eONF: Ethernet Outgoing Frames

• eINCP: Ethernet Incoming Bytes trapped by CPU (X4IP, X5IP option cards only)

• eONCP: Ethernet Outgoing Bytes trapped by CPU (X4IP, X5IP option cards only)

• ppDe: Ethernet Dropped Frames due to Error. Note that this counter also supports 'threshold' notification.

• eUPR: Ethernet Incoming Number of Unicast Frames (X8PL LAN ports only)

• eUPS: Ethernet Outgoing Number of Unicast Frames (X8PL LAN ports only)

• eMPR: Ethernet Incoming Number of Multicast Frames (X8PL LAN ports only)

• eMPS: Ethernet Outgoing Number of Multicast Frames (X8PL LAN ports only)

• eBPR: Ethernet Incoming Number of Broadcast Frames (X8PL LAN ports only)

• eBPS: Ethernet Outgoing Number of Broadcast Frames (X8PL LAN ports only)

• ePPR: Ethernet Incoming Number of Pause Frames received (X5IP and X8PL LAN ports only)

• ePPS: Ethernet Outgoing Number of Pause Frames transmitted (X5IP and X8PL LAN ports only)

• ePCR: Ethernet Incoming Number of Frame with CRC Error (X8PL LAN ports only)

The above features are only applicable to the X4IP, X5IP, and X8PL and option cards. However, the ’ePPR’ and ’ePPS’ parameters are not supported for the X4IP option card. Note that ’PAUSE’ counters are only supported by LAN ports.

PM counters for high quality traffic load (per TC/port)

The 1643 AM/1643 AMS supports performance monitoring parameters for traffic management in 'bytes per traffic class' on ingress and egress ports. Users can select any individual TC per port that is terminated in the 1643 AM/1643 AMS for performance monitoring (including binning and thresholding).

The following PM counters are only applicable to the X4IP and X5IP option cards.

• g2EINB: incoming bytes of green frames with traffic class 2

• y2EINB: incoming bytes of yellow frames with traffic class 2

• g3EINB: incoming bytes of green frames with traffic class 3

• y3EINB: incoming bytes of yellow frames with traffic class 3

• g2EINF: number of incoming green frames with traffic class 2 (X4IP only)

• y2EINF: number of incoming yellow frames with traffic class 2 (X4IP only)

• g3EINF: number of incoming green frames with traffic class 3 (X4IP only)

• y3EINF: number of incoming yellow frames with traffic class 3 (X4IP only)

• c3EIN: incoming layer 1 payload bytes of green frames with traffic class 3 or internal (trapped) frames

• c2EIN: incoming layer 1 payload bytes of green frames with traffic class 3 or traffic class 2 or internal (trapped) frames

• i3gEILS: Loaded Second for incoming traffic with class 3 or internal traffic (supports threshold notification)

• i32gEILS: Loaded Second for incoming traffic with class 3 or class 2 or internal traffic (supports threshold notification)

• i3gEISLS: Severely Loaded Second for incoming traffic with class 3 or internal traffic (supports threshold notification)

• i32gEISLS: Severely Loaded Second for incoming traffic with class 3 or class 2 or internal traffic (supports threshold notification)

PM counters for low quality traffic load (per TC/port)

The 1643 AM/1643 AMS supports performance monitoring parameters for traffic management in 'bytes per traffic class' on ingress and egress ports. Users can select any individual TC per port that is terminated in the 1643 AM/1643 AMS for performance monitoring (including binning and thresholding).

The following PM counters are only applicable to the X4IP and X5IP option cards.

• g0EINB: incoming bytes of green frames with traffic class 0

• y0EINB: incoming bytes of yellow frames with traffic class 0

• g1EINB: incoming bytes of green frames with traffic class 1

• y1EINB: incoming bytes of yellow frames with traffic class 1

• g0EINF: number of incoming green frames with traffic class 0 (X4IP only)

• y0EINF: number of incoming yellow frames with traffic class 0 (X4IP only)

• g1EINF: number of incoming green frames with traffic class 1 (X4IP only)

• y1EINF: number of incoming yellow frames with traffic class 1 (X4IP only)

PM counters for Ethernet service flow (per flow)

The 1643 AM/1643 AMS supports Ethernet service flow PM counters which provide performance monitoring for service flows. The flows are defined for QoS and CQS functions. These functions can be identified by the C/S-VID, C/S-UP, DMAC address or the IP-TOS byte. Users can select any individual flow that is terminated in the 1643 AM/1643 AMS for performance monitoring (including binning and thresholding).

The following PM counters display the Ethernet service flow on the X4IP and X5IP option cards unless indicated otherwise.

• aQIB: All incoming bytes for one service flow

• gQIB: Incoming bytes of all green marked frames for one service flow (X5IP only)

Note that this feature is only applicable to the X4IP and X5IP option cards.

End-to-end Ethernet PM - Round Trip Delay (RTD) measurement

The 1643 AM/1643 AMS supports end-to-end CPU in-band Round Trip Delay measurement using a retrieval function for the MAC-DA of the VS. Users can enable a repeated latency measurement to another network element in the TransLAN network using the MAC-DA, TC, the color (dropping precedence), and the V-LAN tag to identify the VS. The measured path follows the currently valid STP-topology. The RTD measurement accuracy is 4 ms.

Note that this feature is only available on the X4IP and X5IP option cards.

RTD PM Counters

The 1643 AM/1643 AMS supports Ethernet PM counters to display Ethernet RTD measurements.

The following counters are only supported on the X4IP and X5IP option cards.

• mRTD: Minimum round trip delay

• aRTD: Average round trip delay

• xRTD: Maximum round trip delay

• p900RTD: 90.0 percentile of round trip delay

• p990RTD: 99.0 percentile of round trip delay

• p999RTD: 99.9 percentile of round trip delay

• sRTDM: Number of successful round trip delay measurements

• uRTDM: Number of unsuccessful (timed out) round trip delay measurements.

The Ethernet PM counters should be counted in bits or frames. The accuracy of these counters is 1 ppm (10xE-6). This is applicable to all Ethernet counters on X4IP and X5IP option cards.

Alcatel-Lucent – Proprietary

Use pursuant to applicable agreements