show interface gbe
Displays information about Gigabit Ethernet interfaces.
Syntax: show interface gbe [access-list] [extension-counters | inflow-counters | bay/slot/port]
access-list
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Displays access-list statistics for the specified list and interface.
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extension-counters
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Displays the extension counters for a specific Gigabit Ethernet interface.
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inflow counters
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Displays the inflow counters for a specific Gigabit Ethernet interface.
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bay/slot/port
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Displays information for a specific Gigabit Ethernet interface.
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Description: Use the show interface gbe bay/slot/port command to display information about the specified Gigabit Ethernet interface.
Use the show interface gbe extension-counters bay/slot/port command to display the extension counters for the specified Gigabit Ethernet interface.
Use the show interface gbe inflow-counters bay/slot/port command to display the inflow counters for the specified Gigabit Ethernet interface.
Factory Default: None.
Command Mode: Executive and privileged.
Example 1: The following is sample output of the show interface gbe bay/slot/port command:
router#show int gbe 1/4/1
GBE 1/4/1 is up
Internet address is 4.1.1.1/16
Broadcast address is 4.1.255.255
Ethernet address is 00:90:b2:fd:00:12
MTU 4470 bytes, Bandwidth 1000 Mbit/Sec
Encapsulation ARPA
Frame type for ARP is ARPA, Frame type for IP is ARPA
Autonegotiation is Enabled, Flow control is symmetric
Received:
327489878941 bytes
250749465 directed packets, 262140 multicast packets, 0 broadcast packets
0 discards, 0 errors, 0 unknown protocols
Transmitted:
0 bytes
0 directed packets, 0 multicast packets, 524280 broadcast packets
0 discards, 0 errors
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- The following table describes the fields in the display:
Table 4-7. Fields Displayed by show interface gbe
| Field
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Description
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Internet address
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IP address and netmask of the interface.
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Broadcast address
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The address for all hosts on a network.
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Ethernet address
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The Ethernet address for this interface.
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MTU bytes
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The maximum transfer unit (MTU) size for this interface.
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bandwidth
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Available bandwidth of this interface.
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Encapsulation
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The protocol enabled on this interface.
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Frame type for ARP
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The frame type used for the Address Resolution Protocol.
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Frame type for IP
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The frame type used for the Internet Protocol.
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Autonegotiation
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Indicates if autonegotiation is enabled. If enabled, attempts to discover the highest mode of interoperability on the link.
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Flow control
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Indicates how the interface will control traffic during periods of congestion. Valid values are:
- asymmetric allows the local port to determine on its own whether to perform flow control of the remote port.
- symmetric allows for the local port to perform flow control only if the remote port can also perform flow control of the local port.
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Received:
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bytes
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The total number of packets received over this interface.
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directed packets
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The number of unicast packets received on this interface.
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multicast packets
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The number of multicast packets received on this interface.
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broadcast packets
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The number of broadcast packets received on this interface.
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discards
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The number of received packets purposely dropped during reception on this interface.
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errors
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The number of errored packets received on this interface.
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unknown protocols
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The number of packets received with an unknown protocol.
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Transmitted:
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bytes
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The total number of bytes sent over member links of this interface.
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directed packets
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The number of unicast packets sent on this interface.
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multicast packets
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The number of multicast packets sent on this interface.
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broadcast packets
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The number of broadcast packets sent on this interface.
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discards
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The number of packets purposely dropped during transmission on this interface.
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errors
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The number of packets sent in error on this interface.
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Example 2: In the following example, the show interface gbe extension-counters bay/slot/port command displays the extension counters for the specified POS interface:
router#show interface gbe extension-counters 1/4/1
Bad Control Field: 0
CRC Error: 0
Bad IPv4 Header Checksum: 0
Maximum Packet Length Exceeded: 0
IPv4 Packets Truncated: 0
IPv6 Packets Truncated: 0
IPv4 Packet Header Length Error: 0
IP Version Error: 0
Me FIFO Packets Discarded: 0
Runt Packet: 0
Page Allocation Error: 0
Packet Descriptors Discarded: 0
Non-IP Packets(PPP/ISIS): 0
IPv4 Packets: 249655271
IPv6 Packets: 0
Allocated Packet Descriptors Discarded: 0
IPv6 Packets Too Short: 0
IPv4 Packets Too Short: 0
Page Reply Parity Errors: 0
Octets Received: 4294967295
Transmit Packet Descriptors Received: 0
Pings Received: 0
Autotunnelled Packets Received: 0
Octets Transmitted: 0
Packets Transmitted: 0
Packet Underflow: 0
Packets Discarded: 0
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The following table describes the fields in the display:
Table 4-8. Fields Displayed by show interface gbe extension-counters
| Field
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Description
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Bad Control Field
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The number of packets received on this link with an unrecognized Control Field.
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CRC Error
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The number of packets received on this link with a bad CRC.
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Bad IPv4 Header Checksum
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Total number of IP Version 4 packets received by this sub-layer with bad IP header checksum. The counter is only incremented if there are no framing errors.
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Maximum Packet Length Exceeded
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The total number of frames received that exceed the Maximum Frame Size set for this interface.
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IPv4 Packets Truncated
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Total number of Truncated IP Version 4 packets received by this sub-layer. This counter is only incremented if there are no framing errors.
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IPv6 Packets Truncated
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Total number of Truncated IP Version 6 packets received by this sub-layer. This counter is only incremented if there are no framing errors.
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IPv4 Packet Header Length Error
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Total number of IP Version 4 packets received which had bad header lengths. This counter is only incremented if there are no framing errors.
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IP Version Error
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Total number of packets received with unrecognized version in the IP Version field. This counter is only incremented if there are no framing errors.
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Me FIFO Packets Discarded
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Number of packets discarded by the Main FIFO. Packets are discarded when the Main FIFO is full and the line_ts_full or rx_pdf_nearfull signal is asserted.
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Runt Packet
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Total number of frames received at this sub-layer which were smaller than the minimum frame size. Runt packets are silently discarded.
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Page Allocation Error
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Number of times reply to an Allocate or Allocate Link Last or a Last Page command returned page zero.
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Packet Descriptors Discarded
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Total number of packets which were discarded by this sub-layer due to an error.
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Non-IP Packets(PPP/ISIS)
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Total number of packets delivered by this sub-layer to a Non IP higher sub-layer.
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IPv4 Packets
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Total number of packets delivered by this sub-layer to IP Version 4 sub-layer.
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IPv6 Packets
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Total number of packets delivered by this sub-layer to IP Version 6 sub-layer.
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Allocated Packet Descriptors Discarded
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Total number of times the Input Framer had to discard a Receive Packet Descriptor because it got a page-0 reply from packet memory.
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IPv6 Packets Too Short
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Total number of IP Version 6 packets received by this sub-layer that were shorter than the minimum IP Version 6 packet length.
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IPv4 Packets Too Short
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Total number of IP Version 4 packets received by this sub-layer that were shorter than the minimum IP Version 4 packet length.
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Page Reply Parity Errors
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Number of parity errors detected in page reply phase.
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Octets Received
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Total number of octets received for this interface.
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Transmit Packet Descriptors Received
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Total number of packet descriptors received for transmission over this interface.
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Pings Received
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The total number of ICMP Echo Responses that higher-level protocols requested be transmitted by this sub-layer.
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Octets Transmitted
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Total number of octets output over this interface.
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Packets Transmitted
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The total number of packets that higher-level protocols requested be transmitted by this sublayer. This count includes all packet types that is unicast, multicast, and link layer control packets.
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Packet Underflow
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Internal Counter. Total number of packets which experienced an underflow due to internal packet memory.
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Packets Discarded
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The number of outbound packets which were chosen to be discarded even though there were no errors encountered. A possible reason for discard is to free up buffer space.
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Related Commands: interface gbe
show interface composite-link
show interface gbe
show interface statistics
