• Cisco IOS: borderless ( , , ). , ISR2 Cisco 3900 Series Cisco IOS;
  • Cisco NX-OS: Cisco Nexus, . , Cisco Nexus 7000 Cisco NX-OS;
  • Cisco IOS-XR: . , Cisco XR 12000 Series Cisco IOS-XR.

Cisco IOS

IOS , 1980- . Cisco IOS C , , . , . , . , .

. Cisco 7513 (VIP), Cisco IOS. .

Cisco IOS - IOS-XE, Cisco IOS Linux. Cisco IOS-XE, Cisco ASR 1000 Series. Linux, Cisco IOS-XE . , Linux-, Cisco IOS-XE Cisco IOS.

Cisco NX-OS

SAN-OS ( SAN Storage Area Network), NX-OS Cisco IOS. 32- , 64- . Cisco IOS, NX-OS . , .

NX-OS Linux, Python Cisco Nexus. , (high availability), . , . , . , NX-OS Cisco IOS.

Cisco IOS-XR

64- , IOS-XR , NX-OS (, , , ). , NX-OS Linux, IOS-XR QNX Neutrino Microkernel.

IOS-XR, NX-OS, - , . , IOS-XR , , DWDM Packet over SONET.

IOS-XR IOS, , NX-OS. , , , .

, .

Cisco IOS, NX-OS IOS-XR, Cisco VIRL. . , Loopback 0, IP- , show ip interface brief.

IP- Loopback , Cisco IOS , , NX-OS IOS-XR .

, commit IOS-XR. , , .


Router>show version
Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9-M), Version 15.1(4)M4, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2012 by Cisco Systems, Inc.
Compiled Thurs 5-Jan-12 15:41 by pt_team

ROM: System Bootstrap, Version 15.1(4)M4, RELEASE SOFTWARE (fc1)
cisco2911 uptime is 40 seconds
System returned to ROM by power-on
System image file is "flash0:c2900-universalk9-mz.SPA.151-1.M4.bin"
Last reload type: Normal Reload

This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:

If you require further assistance please contact us by sending email to
Cisco CISCO2911/K9 (revision 1.0) with 491520K/32768K bytes of memory.
Processor board ID FTX152400KS
3 Gigabit Ethernet interfaces
DRAM configuration is 64 bits wide with parity disabled.
255K bytes of non-volatile configuration memory.
249856K bytes of ATA System CompactFlash 0 (Read/Write)

License Info:

License UDI:

Device#   PID                   SN
*0        CISCO2911/K9          FTX15246R1P

Technology Package License Information for Module:'c2900'

Technology    Technology-package          Technology-package
              Current       Type          Next reboot
ipbase        ipbasek9      Permanent     ipbasek9
security      None          None          None
uc            None          None          None
data          None          None          None

Configuration register is 0x2102

Router#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
Router(config)#hostname IOS-ROUTER
IOS-ROUTER(config)#interface loopback0

%LINK-5-CHANGED: Interface Loopback0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback0, changed state to up

IOS-ROUTER(config-if)#ip address
%SYS-5-CONFIG_I: Configured from console by console

IOS-ROUTER#show ip int brief
Interface              IP-Address      OK? Method Status                Protocol 
GigabitEthernet0/0     unassigned      YES unset  administratively down down 
GigabitEthernet0/1     unassigned      YES unset  administratively down down 
GigabitEthernet0/2     unassigned      YES unset  administratively down down 
Loopback0            YES manual up                    up 
Vlan1                  unassigned      YES unset  administratively down down


switch#show version
Cisco Nexus Operating System (NX-OS) Software
TAC support: http://www.cisco.com/tac
Copyright (c) 2002-2010, Cisco Systems, Inc. All rights reserved.
The copyrights to certain works contained herein are owned by
other third parties and are used and distributed under license.
Some parts of this software are covered under the GNU Public
License. A copy of the license is available at
BIOS: version 1.3.0
loader: version N/A
kickstart: version 5.0(2)N2(1) [build 5.0(2)N2(1)]
system: version 5.0(2)N2(1) [build 5.0(2)N2(1)]
power-seq: version v1.2
BIOS compile time: 09/08/09
kickstart image file is: bootflash:/sanity-kickstart
kickstart compile time: 12/6/2010 7:00:00 [12/06/2010 07:35:14]
system image file is: bootflash:/sanity-system
system compile time: 12/6/2010 7:00:00 [12/06/2010 08:56:45]
cisco Nexus5010 Chassis ("20x10GE/Supervisor")
Intel(R) Celeron(R) M CPU with 2073416 kB of memory.
Processor Board ID JAF1228BTAS
Device name: BEND-2
bootflash: 1003520 kB
Kernel uptime is 0 day(s), 3 hour(s), 30 minute(s), 45 second(s)
Last reset
Reason: Unknown
System version:
Core Plugin, Ethernet Plugin, Fc Plugin
switch# conf t
Enter configuration commands, one per line. End with CNTL/Z.
switch(config)# hostname NEXUS-SWITCH
NEXUS-SWITCH(config)#interface loopback0
NEXUS-SWITCH(config-if)# ip address
NEXUS-SWITCH# show ip int brief
IP Interface Status for VRF default (1)
Interface	IP Address	Interface Status
Lo0	protocol-up/link-ip/admin-up


RP/0/RP/CPU0:router# show version
 Mon May 31 02:14:12.722 DST

 Cisco IOS XR Software, Version 4.1.0[Default]
 Copyright (c) 2010 by Cisco Systems, Inc.

 ROM: System Bootstrap, Version 2.100(20100129:213223) [CRS-1 ROMMON],  

 router uptime is 1 week, 6 days, 4 hours, 22 minutes
 System image file is "bootflash:disk0/hfr-os-mbi-4.1.0/mbihfr-rp.vm"

 cisco CRS-8/S (7457) processor with 4194304K bytes of memory.
 7457 processor at 1197Mhz, Revision 1.2

 2 Management Ethernet
 8 GigabitEthernet
 12 Packet over SONET/SDH
 1 WANPHY controller(s)
 1 TenGigE
 1019k bytes of non-volatile configuration memory.
 38079M bytes of hard disk.
 3607592k bytes of disk0: (Sector size 512 bytes).
 3607592k bytes of disk1: (Sector size 512 bytes).
RP/0/RP/CPU0:router#conf t
RP/0/RP/CPU0: router(config)#hostname IOS-XR-ROUTER
RP/0/RP/CPU0: router(config)#interface loopback0
RP/0/RP/CPU0: router(config-if)#ip address
RP/0/RP/CPU0: router(config-if)#commit
RP/0/RP/CPU0: IOS-XR-ROUTER (config-if)#end
RP/0/RP/CPU0: IOS-XR-ROUTER (config)#show ip int brirf
Interface			IP-Address	Status		Protocol	Vrf-Name
Loopback0	Up		Up		default
MgmtEth0/0/CPU0/0		unassigned	Shutdown	Down		default
GigabitEthernet0/0/0/0		unassigned	Shutdown	Down		default

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