PrimeAlert® for Cisco Router Version 1.1.1

Interfaces Section

The Interfaces section contains a seperate section for every router interface monitored by the module. Each interface section consists of three tables, Interface Information, Summary Statistics, and Raw Statistics; these tables display the detailed statistical information for a specific router interface. To show the details for a specific interface in the console,

1. Double click on the Interfaces icon to list all interfaces;
2. Double click on the interface (icon) to be viewed.

Interface Information Table

Figure 7 - Interface Information Table for an Interface

The Interface Information table consists of the following properties:

• Name - displays the interface description and user assigned name. This field has the same value as in the Interface Status table.
• Type - displays the type of the interface (IANAifType, for instance, a value of IANAifType 69 represents a fast ethernet (100BaseFX) interface).
• Speed (Mb/sec) - displays the interface bandwidth in Mbits per second.
• Interface MTU (octets) - displays the size of the largest datagrams that can be sent/received on the interface, specified in octets.
• Last Change - displays the date and time at which the interface entered its current operational state.
• Administrative - displays the administrative state of the interface (same as in the Interface Status table).
• Operational - displays the operational state of the interface (same as in the Interface Status table).
• Loading Factor - displays the load on the interface, expressed as a fraction of 255.

Summary Statistics Table

Figure 8 - Summary Statistics Table for an Interface

The Summary Statistics table consists of the following rows:

• % Utilization (1 Min) - displays the % link utilization in the last 1 minute.
• % Utilization (5 Min) - displays the % link utilization in the last 5 minutes.
• % Utilization (15 Min) - displays the % link utilization in the last 15 minutes.
• Last Error Packets - displays the number of inbound/outbound error packets since the last update.
• % Error Packets - displays the % of inbound/outbound packets dropped due to errors since the last update.
• Last Discards - displays the number of inbound/outbound packets discarded since the last update.
• % Discards - displays the % of inbound/outbound packets discarded since the last update.
• Last Unknown Protocols - displays the number of received packets dropped due to unknown or unsupported protocols since the last update.
• % Unknown Protocols - displays the % of received packets dropped due to unknown or unsupported protocols since the last update.
• Total Packets - displays the total number of received/transmitted packets through this interface.
• Last Packets - displays the number of received/transmitted packets through this interface since the last update.

Raw Statistics Table

Figure 9 - Raw Statistics Table for an Interface

The Raw Statistics table consists of following the rows:

• Error Packets - displays the number of inbound/outbound packets that contained errors preventing them from being forwarded or transmitted.
• Transmitted (octets) - displays the total number of octets received/transmitted on the interface.
• Unicast Packets - displays the number of packets received as unicast packets, or to be transmitted to a subnetwork-unicast address.
• Discarded - displays the number of inbound/outbound packets that were discarded, even though no errors had been detected to prevent them from being delivered/transmitted.
• Nonunicast Packets - displays the total number of packets received as non-unicast packets, or to be transmitted to a non-unicast address.
• Unknown Protocols - displays the number of packets received via the interface that were discarded because of an unknown or unsupported protocol.
• CRC Errors - displays the number of received packets that had cyclic redundancy checksum errors.
• Collisions - displays the number of output collisions detected on this interface.
• Packet Transmit Rate (/sec) - displays the weighted, 5 minute, exponentially-decaying average of input/output packets per second.
• Bit Transmit Rate (/sec) - displays the weighted, 5 minute, exponentially-decaying average of input/output bits per second.