Managing the Configuration
This chapter includes the following topics:
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Information About Configuration Management
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Changing the Switch Name
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Configuring a Message of the Day
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Verifying the Configuration
•
Saving a Configuration
•
Erasing a Configuration
•
Feature History for Configuration Management
Information About Configuration Management
The Cisco Nexus 1000V provides you with the capabiliyt to change the switch name, configure messages of the day, and display, save, and erase configuration files.
Changing the Switch Name
Use this procedure to change the switch name or prompt from the default (switch#) to another character string.
BEFORE YOU BEGIN
Before beginning this procedure, you must know or do the following:
•
You are logged in to the CLI in configuration mode.
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If the VSM is connected to vCenter Server then this procedure also changes the DVS the VSM is managing.In case of error in renaming the DVS, a syslog is generated and the DVS on vCenter Server will continue using the old DVS name.
DETAILED STEPS
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Step 1 |
switchname
n1000v(config)# switchname metro metro(config)# exit metro# |
Changes the switch prompt. |
Configuring a Message of the Day
Use this procedure to configure a message of the day (MOTD) to display before the login prompt on the terminal when a user logs in.
BEFORE YOU BEGIN
Before beginning this procedure, you must know or do the following:
•
You are logged in to the CLI in configuration mode.
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The banner message can be up to 40 lines with up to 80 characters per line.
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Use the following guidelines when choosing your delimiting character:
–
Do not use the delimiting-character in the message string.
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Do not use " and % as delimiters.
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The following tokens can be used in the the message of the day:
–![](/c/dam/en/us/td/i/templates/blank.gif)
$(hostname)
displays the host name for the switch.
–![](/c/dam/en/us/td/i/templates/blank.gif)
$(line)
displays the vty or tty line or name.
DETAILED STEPS
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Step 1 |
banner motd [delimiting-character message delimiting-character]
n1000v(config)# banner motd #April 16, 2008
Welcome to the svs#
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Configures a banner message of the day. • up to 40 lines • up to 80 characters per line • enclosed in delimiting character, such as # • can span multiple lines • can use tokens |
Step 2 |
show banner motd
n1000v(config)# show banner motd
April 16, 2008 Welcome to the Switch
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Displays the configured banner message. |
Verifying the Configuration
Use this section to view the switch configuration. This section includes the following topics:
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Verifying the Software and Hardware Versions
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Verifying the Running Configuration
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Comparing the Startup and Running Configurations
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Verifying the Interface Configuration
Verifying the Software and Hardware Versions
Use this command to view the versions of software and hardware on your system, for example, to verify the version before and after an upgrade.
BEFORE YOU BEGIN
Before using this command, you must know or do the following:
•
You are logged in to the CLI in any command mode.
DETAILED STEPS
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Step 1 |
show version
n1000v# show version |
Displays the versions of system software and hardware that are currently running on the switch, |
Cisco Nexus Operating System (NX-OS) Software
TAC support: http://www.cisco.com/tac
Copyright (c) 2002-2009, Cisco Systems, Inc. All rights reserved.
The copyrights to certain works contained in this software are
owned by other third parties and used and distributed under
license. Certain components of this software are licensed under
the GNU General Public License (GPL) version 2.0 or the GNU
Lesser General Public License (LGPL) Version 2.1. A copy of each
such license is available at
http://www.opensource.org/licenses/gpl-2.0.php and
http://www.opensource.org/licenses/lgpl-2.1.php
kickstart: version 4.0(4)SV1(1)
system: version 4.0(4)SV1(1)
kickstart compile time: 4/2/2009 23:00:00
system image file is: bootflash:/svs.bin
system compile time: 4/2/2009 23:00:00 [04/23/2009 09:55:29]
Cisco Nexus 1000V Chassis ("Virtual Supervisor Module")
Intel(R) Xeon(R) CPU with 1034780 kB of memory.
Processor Board ID T5056893321
Kernel uptime is 0 day(s), 0 hour(s), 2 minute(s), 55 second(s)
Core Plugin, Ethernet Plugin
Verifying the Running Configuration
Use this section to view the configuration currently running on the system.
BEFORE YOU BEGIN
Before using this command, you must know or do the following:
•
You are logged in to the CLI in any command mode.
DETAILED STEPS
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Step 1 |
show running-config
n1000v# show running-config
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Displays the versions of system software and hardware that are currently running on the switch,
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n1000v# show running-config
username admin password 5 $1$ouYE/pRM$/j4/2lg3RMd4PhE.1Z1S.0 role network-admin
ip host n1000v 172.23.232.141
kernel core target 0.0.0.0
system default switchport
host vmware id 89130a67-e66b-3e57-ad25-547750bcfc7e
snmp-server user admin network-admin auth md5 0xb64ad6879970f0e57600c443287a79f0 priv
0xb64ad6879970f0e57600c443287a79f0 localizedkey
snmp-server enable traps license
ip route 0.0.0.0/0 172.23.232.1
limit-resource vlan minimum 16 maximum 513
limit-resource monitor-session minimum 0 maximum 64
limit-resource vrf minimum 16 maximum 8192
limit-resource port-channel minimum 0 maximum 256
limit-resource u4route-mem minimum 32 maximum 80
limit-resource u6route-mem minimum 16 maximum 48
port-profile Unused_Or_Quarantine_Uplink
description "Port-group created for Nexus1000V internal usage. Do not use."
port-profile Unused_Or_Quarantine_Veth
description "Port-group created for Nexus1000V internal usage. Do not use."
port-profile system-uplink
switchport trunk allowed vlan 260-261
switchport access vlan 262
switchport access vlan 262
inherit port-profile system-uplink
inherit port-profile vm-uplink
ip address 172.23.232.141/24
boot kickstart bootflash:/kick.bin sup-1
boot system bootflash:/svs.bin sup-1
boot kickstart bootflash:/kick.bin sup-2
boot system bootflash:/svs.bin sup-2
remote hostname 172.23.231.201
vmware dvs uuid "2c 6f 3d 50 62 f3 7f 4d-dc 00 70 e2 52 77 ca 15" datacenter-name
HamiltonDC
Comparing the Startup and Running Configurations
Use this procedure to view the difference between the startup and running configurations.
BEFORE YOU BEGIN
Before using this command, you must know or do the following:
•
You are logged in to the CLI in any command mode.
DETAILED STEPS
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Step 1 |
show running-config diff
n1000v# show running-config diff
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Displays the difference between the startup configuration and the running configuration currently on the switch. |
Example 5-1 Command output, show running-config diff
n1000v# show running-config diff
- system mem-thresholds minor 0 severe 0 critical 0
ip route 0.0.0.0/0 10.78.1.1
vlan 80,110-111,150,160,170
ip address 10.78.1.112/24
inherit port-profile vlan160
- inherit port-profile vlan170
inherit port-profile vlan160
inherit port-profile vlan170
ip route 0.0.0.0/0 10.78.1.1
vlan 80-80, 110-110, 111-111, 150-150, 160-160, 170-170
ip address 10.78.1.112/24
inherit port-profile vlan160
inherit port-profile vlan160
+ inherit port-profile vlan170
inherit port-profile vlan170
ip route 0.0.0.0/0 10.78.1.1
vlan 80-80, 110-110, 111-111, 150-150, 160-160, 170-170
Verifying the Interface Configuration
This section includes the following procedures:
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Verifying a Brief Version of an Interface Configuration
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Verifying a Detailed Version of an Interface Configuration
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Verifying a Brief Version of all Interfaces
•
Verifying the Running Configuration for all Interfaces
For more information about displaying interfaces, see the document,
Cisco Nexus 1000V Interface Configuration Guide, Release 4.2(1)SV1(4a)
Verifying a Brief Version of an Interface Configuration
Use this procedure to view a brief version of an interface configuration.
BEFORE YOU BEGIN
Before using this procedure, you must know or do the following:
•
You are logged in to the CLI in any command mode.
DETAILED STEPS
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Step 1 |
show interface {type} {name} brief |
Displays a brief version of information about the specified interface configuration, |
n1000v# show interface mgmt 0 brief
--------------------------------------------------------------------------------
Port VRF Status IP Address Speed MTU
--------------------------------------------------------------------------------
mgmt0 -- up 10.78.1.63 1000 1500
Verifying a Detailed Version of an Interface Configuration
Use this procedure to view a detailed version of an interface configuration.
BEFORE YOU BEGIN
Before using the commands in this section, you must know or do the following:
•
You are logged in to the CLI in any command mode.
DETAILED STEPS
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Step 1 |
show interface {type} {name} |
Displays details about the specified interface configuration, |
n1000v# show interface mgmt 0
Hardware: Ethernet, address: 0050.5689.3321 (bia 0050.5689.3321)
Internet Address is 172.23.232.141/24
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Auto-Negotiation is turned on
4961 packets input, 511995 bytes
0 multicast frames, 0 compressed
0 input errors, 0 frame, 0 overrun, 0 fifo
245 packets output, 35853 bytes
0 underrun, 0 output errors, 0 collisions
Verifying a Brief Version of all Interfaces
Use this procedure to view a brief version of all interfaces configured on your system.
BEFORE YOU BEGIN
Before usingthis procedure, you must know or do the following:
•
You are logged in to the CLI in any command mode.
DETAILED STEPS
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Step 1 |
show interface brief |
Displays a brief version of all interface configurations on your system, |
n1000v# show interface brief
--------------------------------------------------------------------------------
Port VRF Status IP Address Speed MTU
--------------------------------------------------------------------------------
mgmt0 -- up 172.23.232.141 1000 1500
--------------------------------------------------------------------------------
Ethernet VLAN Type Mode Status Reason Speed Port
--------------------------------------------------------------------------------
Eth3/2 1 eth trunk up none 1000(D) --
Eth3/3 262 eth access up none 1000(D) --
--------------------------------------------------------------------------------
Interface VLAN Type Mode Status Reason MTU
--------------------------------------------------------------------------------
Veth81 630 virt access up none 1500
Veth82 630 virt access up none 1500
Veth224 631 virt access up none 1500
Veth225 1 virt access nonPcpt nonParticipating 1500
Verifying the Running Configuration for all Interfaces
Use this procedure to view the running configuration for all interfaces on your system.
BEFORE YOU BEGIN
Before using this procedure, you must know or do the following:
•
You are logged in to the CLI in any command mode.
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The output for the command, show running-config interface differs from that of the command, show interface.
DETAILED STEPS
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Step 1 |
show running-config interface |
Displays the running configuration for all interfaces on your system, |
n1000v# show running-config interface
inherit port-profile sftrunk
inherit port-profile vmuplink
inherit port-profile alluplink
inherit port-profile vm630
inherit port-profile vm630
inherit port-profile vm631
Saving a Configuration
Use this procedure to save the running configuration to the startup configuration so that your changes are retained in the configuration file the next time you start the system.
BEFORE YOU BEGIN
Before using this command, you must know or do the following:
•
You are logged in to the CLI in any command mode.
DETAILED STEPS
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Step 1 |
copy running-config startup-config |
Saves the new configuration into nonvolatile storage, after which the running and the startup copies of the configuration are identical. |
n1000v(config)# copy run start
[########################################] 100%
Erasing a Configuration
Use this procedure to erase a startup configuration.
BEFORE YOU BEGIN
Before using this command, you must know or do the following:
Caution
The
write erase command erases the entire startup configuration with the exception of loader functions, the license configuration, and the certificate extension configuration.
•
You are logged in to the CLI.
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The following parameters are used with this command:
–
boot: Erases the boot variables and the mgmt0 IP configuration.
–
debug: Erases the debug configuration.
DETAILED STEPS
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Step 1 |
write erase [boot | debug] |
The existing startup configuration is completely erased and all settings revert to their factory defaults. The running configuration is not affected. |
Feature History for Configuration Management
This section provides the configuration managementfeature release history.
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Configuration Management |
4.0(4)SV1(1) |
This feature was introduced. |