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Cisco Catalyst Switch Manager User Guide
OL-4930-01
Chapter 10 Virtual Interface Management
GRE Interface Management Window
Performance Tab
The following areas are available on the Performance tab of the GRE Interface Management window:
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Packet/Octets Statistics
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Error Statistics
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Performance Logging
Packet/Octet Statistics
The Packets/Octets Statistics area contains the following read–only information:
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In Octets—Total number of received octets including framing characters.
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Out Octets—Total number of transmitted octets including framing characters.
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In Unicast Pkts.—The number of packets, delivered by this sublayer to a higher (sub-)layer, which
were not addressed to a multicast or broadcast address at this sublayer.
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Out Unicast Pkts.—The total number of packets that higher-level protocols requested be
transmitted, and which were not addressed to a multicast or broadcast address at this sublayer,
including those that were discarded or not sent.
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In Packets/Sec—Five-minute exponentially decayed moving average of input packets per second.
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Out Packets/Sec—Five-minute exponentially decayed moving average of output packets per second.
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In Bits/Sec—Five-minute exponentially decayed moving average of input bits per second.
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Out Bits/Sec—Five-minute exponentially decayed moving average of output bits per second.
Error Statistics
The Error Statistics area contains the following read–only information:
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CRC Error Pkts.—Number of input packets which had cyclic redundancy checksum errors.
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In Discarded Pkts.—The number of inbound packets that were chosen to be discarded even though
no errors had been detected to prevent them from being deliverable to a higher-layer protocol. One
possible reason for discarding such a packet is to free up buffer space.
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Out Discarded Pkts.—The number of outbound packets which 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.
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In Dropped Pkts.—The number of packets dropped because the input queue was full.
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Out Dropped Pkts.—The number of packets dropped because the output queue was full.
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In Ignored Pkts.—Number of input packets that were simply ignored by this interface.
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In Aborted Pkts.—Number of input packets that were aborted.
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In Error Pkts.—The number of inbound packets that contained errors preventing them from being
delivered to a higher-layer protocol.
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Out Error Pkts.—Number of outbound packets that could not be transmitted because of errors.