>> Что посоветуете?
> Железо для дома и Cisco это, в общем случае, взаимоисключающие вещи.
> Нужно определить цель "изучения" и уже потом делать какой-то выбор (сертификаты или
> реальные знания).
> Чтобы начать изучать Cisco не нужно покупать никакое оборудование.
> Берите любую платформу на ваш выбор: GNS3 / EveNG / Cisco VIRL,
> заливайте туда реальный софт и вперед.
> В тот момент когда вы выйдете за пределы возможностей этих платформ (если
> выйдете) вы уже будете знать какое железо вам нужно.
Ну это вы погорячились - дома кошки вполне могут жить. Главный критерий выбора - они ДОЛЖНЫ БЫТЬ ТИХИЕ!!! Ниже я приведу sh ver моего домашнего железа... Сначала была 3845, но... она орала как самолет на взлете, была поменяна на то что есть.
Для изучения GNS3 - отличный выбор, но если хочется пощупать живую железку - примерный список внизу,обойдется в разумные деньги, если брать б/у и на авито например и брать не первое попавшееся предложение, а искать подешевле и не бояться прикладывать руки к тому что купил.
Например мой коммутатор - шикарен, но был взять за копейки (10к руб.) со сдохшим пропеллером. Зато позволил поэксперементировать с OpenFlow, чего ни один эмулятор не умеет.
Подбор совместимой памяти, флешек - тоже весело, но при должном терпении и изучении - все получится
Мое домашнее оборудование:
Маршрутизатор:
gw-01#sh ver
Cisco IOS Software, 2800 Software (C2800NM-ADVIPSERVICESK9-M), Version 15.1(2)T2, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2010 by Cisco Systems, Inc.
Compiled Sat 23-Oct-10 00:10 by prod_rel_team
ROM: System Bootstrap, Version 12.4(13r)T11, RELEASE SOFTWARE (fc1)
gw-01 uptime is 29 weeks, 13 hours, 54 minutes
System returned to ROM by reload at 03:18:04 MSK Tue Mar 20 2018
System image file is "flash:c2800nm-advipservicesk9-mz.151-2.T2.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:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html
If you require further assistance please contact us by sending email to
export@cisco.com.
Cisco 2821 (revision 53.51) with 509952K/14336K bytes of memory.
Processor board ID FTX1010C025
2 Gigabit Ethernet interfaces
2 Serial(sync/async) interfaces
1 ATM interface
1 Virtual Private Network (VPN) Module
DRAM configuration is 64 bits wide with parity enabled.
239K bytes of non-volatile configuration memory.
62720K bytes of ATA CompactFlash (Read/Write)

License Info:
License UDI:
-------------------------------------------------
Device#   PID                   SN
-------------------------------------------------
*0        CISCO2821             FTX1010C025
Configuration register is 0x2102
gw-01#
Коммутатор:
sw-01#sh ver
Cisco IOS Software, C2960X Software (C2960X-UNIVERSALK9-M), Version 15.2(6)E1, RELEASE SOFTWARE (fc4)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2018 by Cisco Systems, Inc.
Compiled Tue 06-Mar-18 06:58 by prod_rel_team
ROM: Bootstrap program is C2960X boot loader
BOOTLDR: C2960X Boot Loader (C2960X-HBOOT-M) Version 15.0(2r)EX, RELEASE SOFTWARE (fc1)
sw-01 uptime is 1 day, 9 hours, 13 minutes
System returned to ROM by power-on
System restarted at 23:30:56 MSK Tue Oct 9 2018
System image file is "flash:/c2960x-universalk9-mz.152-6.E1/c2960x-universalk9-mz.152-6.E1.bin"
Last reload reason: power-on
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:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html
If you require further assistance please contact us by sending email to
export@cisco.com.
cisco WS-C2960X-48FPD-L (APM86XXX) processor (revision A0) with 524288K bytes of memory.
Processor board ID FOC1736Z1AG
Last reset from power-on
1 Virtual Ethernet interface
1 FastEthernet interface
50 Gigabit Ethernet interfaces
4 Ten Gigabit Ethernet interfaces
The password-recovery mechanism is enabled.
512K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address       : C0:25:5C:67:97:00
Motherboard assembly number     : 73-14830-03
Power supply part number        : 341-0527-01
Motherboard serial number       : FOC17352UPK
Power supply serial number      : DCB173263FS
Model revision number           : A0
Motherboard revision number     : A0
Model number                    : WS-C2960X-48FPD-L
Daughterboard assembly number   : 73-14200-03
Daughterboard serial number     : FOC17348GRF
System serial number            : FOC1736Z1AG
Top Assembly Part Number        : 800-38001-01
Top Assembly Revision Number    : A0
Version ID                      : V01
CLEI Code Number                : CMMLJ00ARA
Daughterboard revision number   : A0
Hardware Board Revision Number  : 0x05

Switch Ports Model                     SW Version            SW Image
------ ----- -----                     ----------            ----------
*    1 54    WS-C2960X-48FPD-L         15.2(6)E1             C2960X-UNIVERSALK9-M

Configuration register is 0xF
sw-01#

Точка доступа:
ap-01#sh ver
Cisco IOS Software, C1600 Software (AP1G2-K9W7-M), Version 15.3(3)JAB, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2014 by Cisco Systems, Inc.
Compiled Tue 02-Sep-14 20:36 by prod_rel_team
ROM: Bootstrap program is C1600 boot loader
BOOTLDR: C1600 Boot Loader (AP1G2-BOOT-M) LoaderVersion 15.2(2)JAX, RELEASE SOFTWARE (fc1)
ap-01 uptime is 1 day, 9 hours, 11 minutes
System returned to ROM by power-on
System image file is "flash:/ap1g2-k9w7-mx.153-3.JAB/ap1g2-k9w7-xx.153-3.JAB"
Last reload reason:
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:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html
If you require further assistance please contact us by sending email to
export@cisco.com.
cisco AIR-SAP1602I-R-K9 (PowerPC) processor (revision B0) with 187382K/74672K bytes of memory.
Processor board ID JTV1915A0AP
PowerPC CPU at 533Mhz, revision number 0x2151
Last reset from power-on
1 Gigabit Ethernet interface
2 802.11 Radios
32K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address: A0:EC:F9:38:68:21
Part Number                          : 73-14671-04
PCA Assembly Number                  : 000-00000-00
PCA Revision Number                  :
PCB Serial Number                    : FOC18450X22
Top Assembly Part Number             : 800-38552-01
Top Assembly Serial Number           : JTV1915A0AP
Top Revision Number                  : A0
Product/Model Number                 : AIR-CAP1602I-R-K9
Configuration register is 0xF
ap-01#

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