Configure the interfaces
These sections describe how to configure Gigabit interfaces and also provide examples of configuring the router interfaces:
Configure Gigabit Ethernet interfaces
Procedure
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Step 1 |
enable Example:Enables privileged EXEC mode. Enter your password if prompted. |
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Step 2 |
configure terminal Example:Enters global configuration mode. |
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Step 3 |
interface GigabitEthernet slot/subslot/port Example:Configures a GigabitEthernet interface.
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Step 4 |
ip address ip-address mask [secondary] dhcp pool Example:Assigns an IP address to the GigabitEthernet
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Step 5 |
negotiation auto Example:Selects the negotiation mode.
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Step 6 |
end Example:Ends the current configuration session and returns to privileged EXEC mode. |
Configure the interfaces: Example
This example shows the interface gigabitEthernet command being used to add the interface and set the IP address. 0/0/0 is the slot/subslot/port. The ports are numbered 0 to 5.
Router# show running-config interface gigabitEthernet 0/0/0
Building configuration...
Current configuration : 38 bytes
!
interface GigabitEthernet0/0/0
end
Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)# interface gigabitEthernet 0/0/0 Note |
Several Cisco platforms, NIMs, and SM cards support configuring multiple-rate SFPs on same interface, e.g., 1G SFP or 10G SFP+ on a 10G port. In a port-channel bundle, all member interfaces should be of same speed, and duplex. It is recommended to use duplex interfaces of the same speed as member interfaces for configuring a port-channel. For more information about interfaces that support multiple-rate SFPs, see the corresponding datasheets. |
View a list of all interfaces: Example
In this example, the show interfaces summary, and show platform software status control-process brief commands are used to display all the interfaces.
Router# show interfaces summary
*: interface is up
IHQ: pkts in input hold queue IQD: pkts dropped from input queue
OHQ: pkts in output hold queue OQD: pkts dropped from output queue
RXBS: rx rate (bits/sec) RXPS: rx rate (pkts/sec)
TXBS: tx rate (bits/sec) TXPS: tx rate (pkts/sec)
TRTL: throttle count
Interface IHQ IQD OHQ OQD RXBS RXPS TXBS TRTL TXPS
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GigabitEthernet0/0/0 0 0 0 0 0 0 0 0 0
GigabitEthernet0/0/1 0 0 0 0 0 0 0 0 0
GigabitEthernet0/0/2 0 0 0 0 0 0 0 0 0
* GigabitEthernet0/0/3 0 0 0 0 0 0 0 0 0
Tw0/0/4 0 0 0 0 0 0 0 0 0
Tw0/0/5 0 0 0 0 0 0 0 0 0
* Tw0/0/6 0 0 0 0 0 0 0 0 0
* Tw0/0/7 0 0 0 0 0 0 0 0 0
* Te0/0/8 0 0 0 0 1294556000 2528447 1054401000 2059772 0
* Te0/0/8.28 - - - - - - - - -
* Te0/0/9 0 0 0 0 1051214000 2053136 1294557000 2528449 0
* Te0/0/9.14 - - - - - - - - -
* Te0/0/9.17 - - - - - - - - -
* GigabitEthernet0 0 0 0 0 8000 6 0 0 0
* vmanage_system 0 0 0 0 0 0 0 0 0
* Loopback65528 0 0 0 0 0 0 0 0 0
* Loopback65529 0 0 0 0 0 0 0 0 0
* Vlan1 0 0 0 0 0 0 0 0 0
NOTE:No separate counters are maintained for subinterfaces
Hence Details of subinterface are not shown Router#show platform software status control-process brief
Load Average
Slot Status 1-Min 5-Min 15-Min
RP0 Healthy 7.20 7.33 7.49
Memory (kB)
Slot Status Total Used (Pct) Free (Pct) Committed (Pct)
RP0 Healthy 7937336 4028804 (51%) 3908532 (49%) 5463844 (69%)
CPU Utilization
Slot CPU User System Nice Idle IRQ SIRQ IOwait
RP0 0 2.90 5.10 0.00 90.90 0.90 0.20 0.00
1 99.90 0.00 0.00 0.00 0.10 0.00 0.00
2 99.90 0.00 0.00 0.00 0.10 0.00 0.00
3 99.90 0.00 0.00 0.00 0.10 0.00 0.00
4 99.90 0.00 0.00 0.00 0.09 0.00 0.00
5 99.80 0.00 0.00 0.00 0.09 0.09 0.00
6 99.90 0.00 0.00 0.00 0.10 0.00 0.00
7 99.90 0.00 0.00 0.00 0.10 0.00 0.00 View information about an interface
This example shows how to display a brief summary of an interface's IP information and status, including the virtual interface bundle information, by using the show ip interface brief command.
Router# show ip interface brief
Interface IP-Address OK? Method Status Protocol
GigabitEthernet0/0/0 unassigned YES unset down down
GigabitEthernet0/0/1 unassigned YES unset down down
GigabitEthernet0/0/2 unassigned YES unset down down
GigabitEthernet0/0/3 unassigned YES unset up up
Tw0/0/4 unassigned YES unset down down
Tw0/0/5 unassigned YES unset down down
Tw0/0/6 unassigned YES unset up up
Tw0/0/7 unassigned YES unset up up
Te0/0/8 unassigned YES unset up up
Te0/0/8.28 28.1.1.1 YES other up up
Te0/0/9 unassigned YES unset up up
Te0/0/9.14 14.1.1.2 YES other up up
Te0/0/9.17 17.1.1.2 YES other up up
GigabitEthernet0 10.124.24.214 YES other up up
vmanage_system unassigned YES unset up up
Loopback65528 192.168.1.1 YES other up up
Loopback65529 unassigned YES unset up up
Vlan1 192.168.1.1 YES other up up 
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