Hướng dẫn cấu hình Nexus Switch
Nội dung tổng quan:
- Phần 1. Tìm hiểu tổng quan về Nexus Switch
- Phần 2. Cấu hình cơ bản trên Nexus Switch
- Phần 3. Kiểm tra bảng chuyển mạch
- Phần 4. Cấu hình VLAN
- Phần 5. Cấu hình Trunk
- Phần 6. Cấu hình Private VLAN
- Phần 7. Cấu hình STP
- Phần 8. Cấu hình Storm Control
- Phần 9. Cấu hình CDP & LLDP
- Phần 10. Cấu hình UDLD
- Phần 11. Cấu hình VTP
- Phần 12. Cấu hình EtherChannel
Các bước thực hiện:
Phần 1. Tìm hiểu tổng quan về Nexus Switch.
Nexus Switch sử dụng Cisco NX-OS software. Cisco should keep maintaining the similarities between their NX-OS, IOS and IOS-XR/XE platforms so the engineer’s work will be easy when it comes to troubleshooting.
Cisco Nexus 3048
Datacenter Virtualization
Cisco Nexus is a very optimal solution for data centers that are still running on legacy architecture or the new cutting edge technologies like datacenter virtualization.
Một số công nghệ Data Center:
- vPC (Virtual PortChannel)
- FCoE
- OVT
Thông tin kỹ thuật của Nexus Switch 3048: https://www.cisco.com/c/en/us/products/collateral/switches/nexus-3000-series-switches/data_sheet_c78-685363.html
Phần 2. Cấu hình cơ bản trên Nexus Switch.
Do you want to enforce secure password standard (yes/no): n
Enter the password for "admin": Mobile24h.Class
Confirm the password for "admin": Mobile24h.Class
---- Basic System Configuration Dialog ---- This setup utility will guide you through the basic configuration of the system. Setup configures only enough connectivity for management of the system. Please register Cisco Nexus 3000 Family devices promptly with your supplier. Failure to register may affect response times for initial service calls. Nexus devices must be registered to receive entitled support services. Press Enter at anytime to skip a dialog. Use ctrl-c at anytime to skip the remaining dialogs. Would you like to enter the basic configuration dialog (yes/no): n Create another login account (yes/no) [n]: n The current setup configuration is as follows: policy-map type control-plane copp-system-policy ( default ) Apply and save the config before exiting? (yes/no) [y]: n
User Access Verification login: admin Password: bqkZero.2018 Cisco Nexus Operating System (NX-OS) Software TAC support: http://www.cisco.com/tac Copyright (c) 2002-2014, 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 switch#
switch# configure terminal Enter configuration commands, one per line. End with CNTL/Z. switch(config)#
Đặt tên thiết bị
switch(config)# hostname NX1 NX1(config)#
NX1(config)# end NX1#
Kiểm tra các cổng
NX1# show interface brief -------------------------------------------------------------------------------- Ethernet VLAN Type Mode Status Reason Speed Port Interface Ch # -------------------------------------------------------------------------------- Eth1/1 1 eth access down Link not connected auto(D) -- Eth1/2 1 eth access down Link not connected auto(D) -- … Eth1/48 1 eth access down Link not connected auto(D) -- Eth1/49 1 eth access down SFP not inserted 10G(D) -- Eth1/50 1 eth access down SFP not inserted 10G(D) -- Eth1/51 1 eth access down SFP not inserted 10G(D) -- Eth1/52 1 eth access down SFP not inserted 10G(D) -- -------------------------------------------------------------------------------- Port VRF Status IP Address Speed MTU -------------------------------------------------------------------------------- mgmt0 -- down -- -- 1500 NX1#
Kiểm tra phiên bản HĐH
NX1# show version
Cisco Nexus Operating System (NX-OS) Software
TAC support: http://www.cisco.com/tac
Documents: http://www.cisco.com/en/US/products/ps9372/tsd_products_support_serie
s_home.html
Copyright (c) 2002-2014, 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
http://www.gnu.org/licenses/gpl.html.
Software
BIOS: version 1.2.0
loader: version N/A
kickstart: version 6.0(2)U2(2)
system: version 6.0(2)U2(2)
Power Sequencer Firmware:
Module 1: version v4.4
BIOS compile time: 08/25/2011
kickstart image file is: bootflash:///n3000-uk9-kickstart.6.0.2.U2.2.bin
kickstart compile time: 2/12/2014 8:00:00 [02/12/2014 17:34:16]
system image file is: bootflash:///n3000-uk9.6.0.2.U2.2.bin
system compile time: 2/12/2014 8:00:00 [02/12/2014 19:23:45]
Hardware
cisco Nexus 3048 Chassis ("48x1GE + 4x10G Supervisor")
Intel(R) Celeron(R) CPU P450 with 3785072 kB of memory.
Processor Board ID FOC18475N5U
Device name: NX1
bootflash: 2007040 kB
Kernel uptime is 0 day(s), 0 hour(s), 39 minute(s), 32 second(s)
Last reset
Reason: Unknown
System version: 6.0(2)U2(2)
Service:
plugin
Core Plugin, Ethernet Plugin
NX1#
Lưu cấu hình
NX1# copy running-config startup-config
Xóa cấu hình
NX1# write erase
Cấu hình cơ bản
NX1(config)# interface e1/3 no switchport ip address 192.168.1.1 255.255.255.0 no shutdown exit vlan 8 name Internet exit feature interface-vlan interface vlan 8 ip address 192.168.8.3 255.255.255.0 no shutdown exit ip route 0.0.0.0 0.0.0.0 192.168.8.1
Cấu hình cơ bản trên NX2.
NX2(config)# vlan 8 name Internet exit interface e1/48 switchport mode access switchport access vlan 8 exit feature interface-vlan interface vlan 8 ip address 192.168.8.2 255.255.255.0 no shutdown exit ip route 0.0.0.0 0.0.0.0 192.168.8.1 vlan 10 name LAN10 exit interface vlan 10 ip address 172.16.10.1 255.255.255.0 no shutdown exit feature dhcp ip dhcp pool LAN10 network 172.16.10.0 255.255.255.0 default-router 172.16.10.1 dns-server 8.8.8.8 exit
Cấu hình cơ bản trên R1.
R1(config)# hostname R1 interface f0/0 ip address 192.168.8.1 255.255.255.0 ip nat inside no shutdown exit interface f0/1 ip address dhcp ip nat outside no shutdown exit ip route 0.0.0.0 0.0.0.0 dhcp ip route 192.168.1.0 255.255.255.0 192.168.8.3 ip route 172.16.10.0 255.255.255.0 192.168.8.2 ip route 172.16.20.0 255.255.255.0 192.168.8.2 ip nat inside source list 1 interface f0/1 overload access-list 1 permit 192.0.0.0 0.255.255.255 access-list 1 permit 172.0.0.0 0.255.255.255
Phần 3. Kiểm tra bảng chuyển mạch.
NX1# show mac address-table
Phần 4. Cấu hình VLAN.
NX1# show vlan brief
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Eth1/1, Eth1/2, Eth1/3, Eth1/4
Eth1/5, Eth1/6, Eth1/7, Eth1/8
Eth1/9, Eth1/10, Eth1/11
Eth1/12, Eth1/13, Eth1/14
Eth1/15, Eth1/16, Eth1/17
Eth1/18, Eth1/19, Eth1/20
Eth1/21, Eth1/22, Eth1/23
Eth1/24, Eth1/25, Eth1/26
Eth1/27, Eth1/28, Eth1/29
Eth1/30, Eth1/31, Eth1/32
Eth1/33, Eth1/34, Eth1/35
Eth1/36, Eth1/37, Eth1/38
Eth1/39, Eth1/40, Eth1/41
Eth1/42, Eth1/43, Eth1/44
Eth1/45, Eth1/46, Eth1/47
Eth1/48, Eth1/49, Eth1/50
Eth1/51, Eth1/52
NX1#
Tạo vlan và đặt tên
NX1(config)# vlan 10 NX1(config-vlan)# name DC10
NX1# show vlan brief
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Eth1/1, Eth1/2, Eth1/3, Eth1/4
Eth1/5, Eth1/6, Eth1/7, Eth1/8
Eth1/9, Eth1/10, Eth1/11
Eth1/12, Eth1/13, Eth1/14
Eth1/15, Eth1/16, Eth1/17
Eth1/18, Eth1/19, Eth1/20
Eth1/21, Eth1/22, Eth1/23
Eth1/24, Eth1/25, Eth1/26
Eth1/27, Eth1/28, Eth1/29
Eth1/30, Eth1/31, Eth1/32
Eth1/33, Eth1/34, Eth1/35
Eth1/36, Eth1/37, Eth1/38
Eth1/39, Eth1/40, Eth1/41
Eth1/42, Eth1/43, Eth1/44
Eth1/45, Eth1/46, Eth1/47
Eth1/48, Eth1/49, Eth1/50
Eth1/51, Eth1/52
10 DC10 active
NX1#
Gán cổng vào vlan
NX1(config)# interface e1/1, e1/2 NX1(config-if-range)# switchport mode access NX1(config-if-range)# switchport access vlan 10
NX1# show vlan brief
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Eth1/3, Eth1/4, Eth1/5, Eth1/6
Eth1/7, Eth1/8, Eth1/9, Eth1/10
Eth1/11, Eth1/12, Eth1/13
Eth1/14, Eth1/15, Eth1/16
Eth1/17, Eth1/18, Eth1/19
Eth1/20, Eth1/21, Eth1/22
Eth1/23, Eth1/24, Eth1/25
Eth1/26, Eth1/27, Eth1/28
Eth1/29, Eth1/30, Eth1/31
Eth1/32, Eth1/33, Eth1/34
Eth1/35, Eth1/36, Eth1/37
Eth1/38, Eth1/39, Eth1/40
Eth1/41, Eth1/42, Eth1/43
Eth1/44, Eth1/45, Eth1/46
Eth1/47, Eth1/48, Eth1/49
Eth1/50, Eth1/51, Eth1/52
10 DC10 active Eth1/1, Eth1/2
NX1#
Phần 5. Cấu hình Trunk.
hostname NX1 vlan 10 name DC10 exit interface e1/1 switchport mode access switchport access vlan 10 exit interface e1/48 switchport mode trunk exit
hostname NX2 vlan 10 name DC10 exit interface e1/2 switchport mode access switchport access vlan 10 exit interface e1/48 switchport mode trunk exit
NX2# show interface trunk
--------------------------------------------------------------------------------
Port Native Status Port
Vlan Channel
--------------------------------------------------------------------------------
Eth1/48 1 trunking --
--------------------------------------------------------------------------------
Port Vlans Allowed on Trunk
--------------------------------------------------------------------------------
Eth1/48 1-4094
--------------------------------------------------------------------------------
Port Vlans Err-disabled on Trunk
--------------------------------------------------------------------------------
Eth1/48 none
--------------------------------------------------------------------------------
Port STP Forwarding
--------------------------------------------------------------------------------
Eth1/48 1,10
--------------------------------------------------------------------------------
Port Vlans in spanning tree forwarding state and not pruned
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
Port Vlans Forwarding on FabricPath
--------------------------------------------------------------------------------
Eth1/48 none
NX2#
Cấu hình theo sơ đồ bài LAB.
hostname NX2 interface ethernet 1/1 – 2 switchport mode trunk exit
hostname NX1 interface ethernet 1/1 – 2 switchport mode trunk exit
NX1# show interface trunk
--------------------------------------------------------------------------------
Port Native Status Port
Vlan Channel
--------------------------------------------------------------------------------
Eth1/1 1 trunking --
Eth1/2 1 trunking --
--------------------------------------------------------------------------------
Port Vlans Allowed on Trunk
--------------------------------------------------------------------------------
Eth1/1 1-4094
Eth1/2 1-4094
--------------------------------------------------------------------------------
Port Vlans Err-disabled on Trunk
--------------------------------------------------------------------------------
Eth1/1 none
Eth1/2 none
--------------------------------------------------------------------------------
Port STP Forwarding
--------------------------------------------------------------------------------
Eth1/1 1
Eth1/2 none
--------------------------------------------------------------------------------
Port Vlans in spanning tree forwarding state and not pruned
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
Port Vlans Forwarding on FabricPath
--------------------------------------------------------------------------------
Eth1/1 none
Eth1/2 none
NX1#
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