Statistics For Dropped Packets Support - Avaya 1000 Series Configuration Manual

Packet Capture Considerations:
• The number of packets to be captured in a packet capture session can be specified. The maximum
number of packets allowed can be up to 10000. The default value is 0 which means all packets are to
be captured.
• The maximum capture length for a packet can be specified. A value 0 implies entire contents of a
packet has to be captured. The entire contents of packets will be captured by default.
• Ability to configure the total amount of memory to be reserved for all the packet capture sessions
configured in the system. Default and maximum limit is 5 MB. This can be reconfigured to a lower limit.
• Ability to configure the max size of the packet capture session on an interface. Default is 1MB. This
can be reconfigured, subject to availability of memory in the pool allocated for all packet capture
sessions
• Packet capture filtering rules cannot be applied on an ethernet subinterface.
• In Frame Relay interfaces, LMI packets can not be captured because there is no network layer
interface associated with DLCI 0 or 1023 over which LMI packets are sent/received.
• MFR Link Integrity Protocol packets and packets over the switched PVCs cannot be captured (frame
relay traffic) because there is no associated network layer interface.
• Packet capture is not supported for the tunnel and loopback interfaces.
• Packet capture is not supported for ISDN D channel as it is not associated with a network layer
interface.
• The upload , saveto, and dump commands are not available during an active packet capture
session.

Statistics for dropped packets support

Data Packets can be dropped by an interface while data traffic is passing for several reasons.
The dropped packet statistics will be collected for the following set of packet drop scenarios:
• Tunnel encapsulation errors
• VLAN packets dropped due to QoS(classification errors,queuing errors)
• VLAN packets dropped due to RED
• VLAN Input/Output interface
• VLAN errors such as unrecognized VLAN id, multiple dot1q encapsulations in the packet,
etc
• Internal (system) errors
Avaya Secure Router 1000 Series Configuration Guide
Statistics for dropped packets support
December 2010 337