Displays the detailed interface configuration and capabilities of all interfaces or for specified interfaces.
Privileged EXEC mode
The show interface ethernet command displays the following information:
| Output field | Description |
|---|---|
| Ethernet slot / port | Displays the port state. The states are "admin down, line protocol is down (admin down)" or "up, line protocol is up (connected)". |
| Redundant management mode | Displays "enabled" if so configured. (SLX-9250 only) |
| Hardware | Displays the MAC address of the Ethernet interface. |
| Pluggable media | Displays "present" or "not present". |
| Interface index | Displays the interface index. |
| MTU | Displays the maximum transmission unit (MTU), in bytes. |
| nG interface | Displays the speed of the Ethernet interface, in Gb. |
| Transparent phy loopback | If loopback phy was configured on the interface, displays "configured". If not configured, this line is not displayed. |
| LineSpeed Actual | Displays the actual line speed in Mb or "Nil". |
| LineSpeed Configured | Displays "Auto" or a value in Mb. |
| Duplex | Displays "Half" or "Full". |
| Priority Tab | Displays "enable" or "disable". |
| Reload Delay | Displays reload-delay time value, and remaining time, in seconds. |
| Forward LACP PDU | Displays "enable" or "disable". |
| Route Only | Displays "enabled" or "disabled". |
| Queueing strategy | Displays "FIFO". |
| Primary Internet Address | Displays the primary Internet address |
| Broadcast | Displays the broadcast Internet address |
| Receive Statistics | Displays receive statistics: packets, bytes, unicasts, multicasts, broadcasts, packets by byte size, runts, jabbers, cyclic redundancy check (CRC), overruns, errors, and discards. |
| Transmit Statistics | Displays transmit statistics: packets, bytes, unicasts, multicasts, broadcasts, underruns, errors, and discards. |
| Rate info | Displays input and output in Mbits/sec, packets/sec, and percentage of the line rate. |
| Route-Only Packets Dropped | Displays the number or routing-only packets dropped. |
The show interface loopback command displays the following information:
| Output field | Description |
|---|---|
| Loopback | Displays the loopback number and state and the line protocol state. The states are "Loopback nn is up", "Loopback nn is admin down, line protocol is down (admin down). " |
| Hardware | Displays "is Loopback". |
| Pluggable media | Displays "present" or "not present". |
| Interface index | Displays the interface index. |
| MTU | Displays the maximum transmission unit (MTU), in bytes. |
| LineSpeed Actual | Displays the actual line speed in Mb or "Nil". |
| LineSpeed Configured | Displays "Auto" or a value in Mb. |
| Last clearing of show interface counters: | In days, hours, and minutes, displays how much time elapsed since the last counter clear. |
| Queueing strategy | Displays "FIFO". |
| Primary Internet Address | Displays the primary Internet address. |
The show interface ethernet management command displays the following information:
| Output field | Description |
|---|---|
| LineSpeed Actual | Displays "100000baseT" (100Gb), "40000baseT" (40Gb), "25000baseT" (25Gb), "10000baseT" (10Gb), or "1000baseT" (1Gb). |
| Duplex | Displays "Half" or "Full". |
| LineSpeed Configured | Displays "Auto" or a value in Mb. |
| oper-status | Displays "up" or "down". |
| ip address | Displays "static" or "dynamic" and the IPv4 address. |
| ip gateway-address | Displays the IPv4 gateway address. |
| ipv6 ipv6-address | Displays the IPv6 address. |
| ipv6 ipv6-gateways | Displays the IPv6 gateway address. |
| redundant management | Displays the port where redundant management is enabled. |
The show interface ethernet switchport command displays the following information:
| Output field | Description |
|---|---|
| Interface name | Displays "Ethernet slot / port" or "Port-channel nn". |
| Switchport mode | Displays "access", "trunk", or "trunk-no-default-native". |
| Ingress filter | Displays "enable". |
| Acceptable frame types | Displays "vlan-tagged only", "vlan-untagged only", or "all". |
| Native Vlan | Displays the ID number of the native VLAN. |
| Active Vlans | Displays ID numbers of the active VLANs. |
| MAC learn disable Vlans | Displays VLANs for which MAC learning is disabled. |
The show interface trunk command displays the following information:
| Output field | Description |
|---|---|
| Port | Displays the Ethernet ports by slot / port. |
| Vlans Allowed on Trunk | Displays "Nil" or a list of the VLANs allowed on the trunk. |
The following example displays detailed information for a specified Ethernet interface.
device# show interface ethernet 3/4
Ethernet 3/4 is up, line protocol is up (connected)
Hardware is Ethernet, address is 768d.f804.ca08
Current address is 768d.f804.ca08
Pluggable media present
Interface index (ifindex) is 207650816
MTU 1548 bytes
IP MTU 1500 bytes
10G Interface
LineSpeed Actual : 10000 Mbit
LineSpeed Configured : Auto, Duplex: Full
Priority Tag disable
Forward LACP PDU: Disable
Route Only: Disabled
Last clearing of show interface counters: 11:59:37
Queueing strategy: fifo
Primary Internet Address is 12.2.1.2/24 broadcast is 12.2.1.255
Receive Statistics:
45756 packets, 34003184 bytes
Unicasts: 9094, Multicasts: 36650, Broadcasts: 12
64-byte pkts: 1438, Over 64-byte pkts: 8113, Over 127-byte pkts: 1786
Over 255-byte pkts: 10132, Over 511-byte pkts: 8432, Over 1023-byte pkts: 15855
Over 1518-byte pkts(Jumbo): 0
Runts: 0, Jabbers: 0, CRC: 0, Overruns: 0
Errors: 0, Discards: 0
Transmit Statistics:
33405 packets, 25357172 bytes
Unicasts: 10232, Multicasts: 23162, Broadcasts: 10
Underruns: 0
Errors: 0, Discards: 0
Rate info:
Input 0.000000 Mbits/sec, 0 packets/sec, 0.00% of line-rate
Output 0.000333 Mbits/sec, 0 packets/sec, 0.00% of line-rate
Route-Only Packets Dropped: 0
The following example displays detailed information for the specified management interface.
device# show interface management 0 interface Management 0 line-speed actual "1000baseT, Duplex: Full" line-speed configured Auto oper-status up ip address "static 10.17.110.59/20" ip gateway-address 10.17.114.1 ipv6 ipv6-address [ ] ipv6 ipv6-gateways [ fe80::21b:edff:fe0b:9000 fe80::21b:edff:fe0b:3c00 ]
The following example displays detailed information for a specified loopback interface.
device# show interface loopback 1 Loopback 1 is up, line protocol is up Hardware is Loopback Pluggable media not present Interface index (ifindex) is 1476395009 IP MTU 1500 bytes LineSpeed Actual : Nil LineSpeed Configured : Auto Last clearing of show interface counters: 00:00:23 Queueing strategy: fifo Primary Internet Address is 50.1.1.1/32
The following example displays details of a specified Layer 2 interface.
device# show interface switchport 1/15 Interface name : Ethernet 1/15 Switchport mode : trunk Ingress filter : enable Acceptable frame types : vlan-tagged only Native Vlan : 1 Active Vlans : 1-201 MAC learn disable Vlans : -This example shows whether the control plane is receiving packets at the configured rate.
device# show int eth 0/1 | inc rate
Queueing strategy: fifo
Input 8.649182 Mbits/sec, 8446 packets/sec, 0.10% of line-rate
Output 0.000000 Mbits/sec, 0 packets/sec, 0.00% of line-rate