# Monitoring the Status of Gigabit Ethernet and 10-Gigabit Ethernet Interfaces

#### Purpose

Display the status of Gigabit Ethernet and 10-Gigabit epthernet interfaces. You can use the delta keyword to view baselined statistics. You can use the brief keyword to view the operational status of all configured interfaces.

| Note: The E120 and E320 routers output for monitor and show commands is identical to output from other E Series routers, except that the E120 and E320 router output also includes information about the adapter identifier in the interface specifier (slot/adapter/port).

| Note: The show interfaces gigabitEthernet and show interfaces tenGigabitEthernet commands display similar information.

#### Action

To display the status of a Gigabit Ethernet interface:

    host1#show interfaces gigabitEthernet 14/0/0
    	GigabitEthernet14/0/0 is Up, Administrative status is Up
    	Hardware is Intel IXF1104, address is 0090.1a42.0b87
    	MAU is 1000BASE-SX
     TX Output Power: 469.6 uW	RX Input Power: 0.5 uW
    	MTU: Operational 1518, Administrative 1518
    	Duplex Mode: Operational Full Duplex, Administrative Auto Negotiate
    	Speed: Operational 1000 Mbps, Administrative Auto Negotiate
    	Debounce: State is Disabled
     5 minute input rate 0 bits/sec, 0 packets/sec
    	5 minute output rate 0 bits/sec, 0 packets/sec
    	In: Bytes 0, Unicast 0
    	Multicast 0, Broadcast 0
    	Errors 0, Discards 0, Mac Errors 0, Alignment 0
    	CRC 0, Too Longs 0, Symbol Errors 0
    	Out: Bytes 0, Unicast 0
    	Multicast 0, Broadcast 0
    	Errors 0, Discards 0, Mac Errors 0, Deferred 0, No Carrier 0
    	Collisions: Single 0, Multiple 0, Late 0, Excessive 0
    	Policed Statistics:
    	In: 0, Out: 0
    	ARP Statistics:
    	In: ARP requests 0, ARP responses 0
    	Errors 0, Discards 0
    	Out: ARP requests 0, ARP responses 0

To display the status of a 10-Gigabit Ethernet interface:

    host1#show interfaces tenGigabitEthernet 4/0/0
      TenGigabitEthernet4/0/0 is Up, Administrative status is Up
      Hardware is Marvell GT64260, address is 0090.1a42.14b5
      Primary MAU is 10000BASE-LR 10km, secondary MAU is XFP (Empty)
      TX Output Power: 480.8 uW		RX Input Power: 1 uW
      MTU: Operational 1522, Administrative 1522
      Duplex Mode: Operational Full Duplex, Administrative Full Duplex
      Speed: Operational 10000 Mbps, Administrative 10000 Mbps
      Debounce: State is Disabled
      Link: Operational Primary Link Selected,
      Administrative Link Selected Automatically
      Link Failover Timeout: Operational 336 ms, Administrative default
      Primary link selected 1 time, Secondary link selected 0 times
      Primary link signal not detected, Secondary link signal not detected
      Cleararp: State is Disabled
      5 minute input rate 0 bits/sec, 0 packets/sec
      5 minute output rate 0 bits/sec, 0 packets/sec
      In: Bytes 0, Unicast 0
      Multicast 0, Broadcast 0
      Errors 0, Discards 0, Mac Errors 0, Alignment 0
      CRC 0, Too Longs 0, Symbol Errors 0
      Out: Bytes 768, Unicast 0
      Multicast 0, Broadcast 12
      Errors 0, Discards 0, Mac Errors 0, Deferred 0, No Carrier 0
      Collisions: Single 0, Multiple 0, Late 0, Excessive 0
      Policed Statistics:
      In: 0, Out: 0
      ARP Statistics:
      In: ARP requests 0, ARP responses 0
      Errors 0, Discards 0
      Out: ARP requests 0, ARP responses 0
      Errors 0, Discards 0

#### Meaning

Table 26 lists the output fields of the show interfaces gigabitEthernet and show interfaces tenGigabitEthernet commands.

Table 26: show interfaces gigabitEthernet and show interfaces tenGigabitEthernet Output Fields

Field Name | Field Description
--- | ---
GigabitEthernet or tenGigabitEthernet interfaceSpecifier | Status of the hardware on this interface: up—Hardware is operational down—Hardware is not operational
Administrative status | Operational state that you configured for this interface: up—Interface is enabled down—Interface is disabled
Hardware | Type of MAC device on this interface
Address | MAC address of the processor on this interface
MAU | Type of medium attachment unit (MAU) on the primary and secondary physical ports: SFP—1000BASE-LH, 1000BASE-SX, 1000BASE-ZX; for SFPs that are empty, SFP (Empty) appears in this field; for SFPs that are installed in the OC3-2 GE APS I/O module and do not have a Juniper Networks part number programmed, SFP (GE Compliant) appears in this field XFP—10GBASE-SR (10 Gbps), 10GBASE-LR (10 Gbps), 10GBASE-ER (10 Gbps); for XFPs that are empty, XFP (Empty) appears in this field
TX Output Power | Transmitted output optical power
RX Input Power | Received input optical power
MTU | Size of the MTU for this interface: Operational—Size of the largest packet processed Administrative—Setting for MTU size that you specified
Duplex Mode | Duplex option for this interface: Operational—Duplex option currently used Administrative—Setting for duplex that you specified
Speed | Line speed for this interface: Operational—Current rate at which packets are processed Administrative—Setting for line speed that you specified
Debounce | Debounce configuration for this interface: State is—Enabled, Disabled Interval is—Number of seconds that this interface maintains a given state before the state change is reported to the upper-layer links
Clear arp | State of the removal of the ARP entries on an interface with redundant ports: Enabled—Clears ARP entries on the interface when the primary link fails Disabled—Maintains ARP entries on the interface until the specified timeout elapses
Link | Link information for this interface: Operational Link Selected—Port that the I/O module is currently using: primary or secondary Administrative link selected—Port that the I/O module is configured to use: primary—Only primary port is configured to operate secondary—Only redundant port is configured to operate automatically—Software controls port redundancy automatically
Link Failover Timeout | Time to wait for a failed link to be active before the router uses a different active link
Primary link selected x times | Number of times that the I/O has used the primary port since the module was last rebooted
Secondary link selected x times | Number of times that the I/O has used the secondary port since the module was last rebooted
Primary/Secondary link signal detected, Primary/Secondary link signal not detected | Specifies the port (primary or secondary) on which the router detects a signal (not displayed on GE I/O modules that do not support SFPs)
5 minute input rate | Data rates based on the traffic received in the last 5 minutes
5 minute output rate | Data rates based on the traffic sent in the last 5 minutes
In | Analysis of inbound traffic on this interface: Bytes—Number of bytes received in error-free packets Unicast—Number of unicast packets received Multicast—Number of multicast packets received Broadcast—Number of broadcast packets received Errors—Total number of errors in all received packets; some packets might contain more than one error Discards—Total number of discarded incoming packets Mac Errors—Number of incoming packets discarded because of MAC sublayer failures Alignment—Number of incomplete octets received CRC—Number of packets discarded because the checksum that the router computed from the data does not match the checksum generated by the originating devices Too Longs—Number of packets discarded because the size exceeded the MTU Symbol Errors—Number of symbols received that the router did not correctly decode
Out | Analysis of outbound traffic on this interface: Bytes—Number of bytes sent Unicast—Number of unicast packets sent Multicast—Number of multicast packets sent Broadcast—Number of broadcast packets sent Errors—Total number of errors in all transmitted packets; note that some packets might contain more than one error Discards—Total number of discarded outgoing packets Mac Errors—Number of outgoing packets discarded because of MAC sublayer failures Deferred—Number of packets that the router delayed sending because the line was busy. In half duplex mode, a high number of deferrals means the link is very busy with traffic from other stations. In full duplex mode, when the link is always available for transmission, this number is zero. No Carrier—Number of packets sent when carrier sense was unavailable
Collisions | Analysis of the collisions that occurred: Single—Number of packets sent after one collision Multiple—Number of packets sent after multiple collisions Late—Number of packets aborted during sending because of collisions after 64 bytes Excessive—Number of packets not sent because of too many collisions
Policed Statistics | Number of packets that exceeded the number allowed and were policed (or dropped)
ARP Statistics | Analysis of ARP traffic on this interface; In fields are for traffic received on the interface and Out fields are for traffic sent on the interface: ARP requests—Number of ARP requests ARP responses—Number of ARP responses Errors—Total number of errors in all ARP packets Discards—Total number of discarded ARP packets
Administrative qos-shaping-mode | QoS shaping mode: disabled—Shaping mode is configured but not operational frame—Statistics are reported about bytes in frames, such as transmitted bytes and dropped bytes. cell—Shaping mode for shaping and policing rates is cell-based; resulting traffic stream conforms exactly to the policing rates configured in downstream devices. Reports statistics in bytes in cells and accounts for cell encapsulation and padding overhead. none—Shaping mode is not configured
Operational qos-shaping-mode | Actual shaping mode for the interface: disabled frame cell none
queue | Hardware packet queue associated with the specified traffic class and interface: traffic class—Name of traffic class bound to—Interface to which queue is bound Queue length—Length of the queue, in bytes Forwarded packets, bytes—Number of packets and bytes that were forwarded on this queue Dropped committed packets, bytes—Number of committed packets and bytes that were dropped Dropped conformed packets, bytes—Number of conformed packets and bytes that were dropped Dropped exceeded packets, bytes—Number of exceeded packets and bytes that were dropped

#### Related Documentation

- Configuring the Physical Interface
- Monitoring the Status of Fast Ethernet Interfaces
- Setting Statistics Baselines for Ethernet Interfaces
- show interfaces