Sostituzione di Nexus 9236C Spine Switch - CPAR
Sommario
Introduzione
Questo documento descrive i passaggi necessari per sostituire uno switch dorso difettoso (Nexus 9236C) in una configurazione Ultra-M.
Questa procedura è valida per un ambiente Openstack con la versione NEWTON in cui ESC non gestisce Cisco Prime Access Registrar (CPAR) e CPAR viene installato direttamente sulla VM distribuita in Openstack.
Premesse
Ultra-M è una soluzione core di pacchetti mobili preconfezionata e convalidata, progettata per semplificare l'installazione di VNF. I server che fanno parte della configurazione Ultra-M sono collegati a tre diversi tipi di switch:
- Catalyst Switch
- Interruttore foglia
- Interruttore dorso
L'immagine mostra la topologia di rete di una configurazione Ultra-M:
Questo documento è destinato al personale Cisco che ha familiarità con la configurazione di Cisco Ultra-M e le operazioni sugli switch Catalyst.
Abbreviazioni
| VNF | Funzione di rete virtuale |
| DORSO | Nexus 9236C Switch come dorso |
| MOP | Metodo |
| LAN | Local Area Network |
| FTP | Protocollo di trasferimento file |
| TFTP | Trivial File Transfer Protocol |
| CIMC | Cisco Integrated Management Controller |
Flusso di lavoro del piano di mobilità
Questa immagine mostra il flusso di lavoro di alto livello della procedura di sostituzione.
Spine Switch in UltraM Setup
Prerequisito
Eseguire un backup del file di configurazione dallo switch Spine tramite FTP/TFTP prima di procedere con la sostituzione dello switch.
AL03-N9236c-POD2-spine1# copy running-config sftp:
Enter destination filename: [AL03-N9236c-POD2-spine1-running-config] backup-spine-cfg-2
Enter vrf (If no input, current vrf 'default' is considered): management
Enter hostname for the sftp server: 10.1.1.1
Enter username: root
The authenticity of host '10.1.1.1 (10.1.1.1)' can't be established.
ECDSA key fingerprint is SHA256:dnHSXQ6fyYX5v8DU87oqVkCoA8CSPW7CpT+o2qilNI4.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '10.1.1.1' (ECDSA) to the list of known hosts.
root@10.1.1.1's password:
Connected to 10.1.1.1.
sftp> put /var/tmp/vsh/backup-spine-cfg-2 backup-spine-cfg-2
Uploading /var/tmp/vsh/backup-spine-cfg-2 to /root/backup-spine-cfg-2
/var/tmp/vsh/backup-spine-cfg-2 0% 0 0.0KB/s --:-- ETA /var/tmp/vsh/backup-spine-cfg-2 100% 11KB 11.2KB/s 00:00
sftp> exit
Copy complete, now saving to disk (please wait)...
Copy complete.
Controlli integrità
Passaggio 1. Verificare la versione software in esecuzione nello switch e annotarla.
AL03-N9236c-POD2-spine1# show ver
Cisco Nexus Operating System (NX-OS) Software
TAC support: http://www.cisco.com/tac
Copyright (C) 2002-2018, Cisco and/or its affiliates.
All rights reserved.
The copyrights to certain works contained in this software are
owned by other third parties and used and distributed under their own
licenses, such as open source. This software is provided "as is," and unless
otherwise stated, there is no warranty, express or implied, including but not
limited to warranties of merchantability and fitness for a particular purpose.
Certain components of this software are licensed under
the GNU General Public License (GPL) version 2.0 or
GNU General Public License (GPL) version 3.0 or the GNU
Lesser General Public License (LGPL) Version 2.1 or
Lesser General Public License (LGPL) Version 2.0.
A copy of each such license is available at
http://www.opensource.org/licenses/gpl-2.0.php and
http://opensource.org/licenses/gpl-3.0.html and
http://www.opensource.org/licenses/lgpl-2.1.php and
http://www.gnu.org/licenses/old-licenses/library.txt.
Software
BIOS: version 07.59
NXOS: version 7.0(3)I7(3)
BIOS compile time: 08/26/2016
NXOS image file is: bootflash:///nxos.7.0.3.I7.3.bin
NXOS compile time: 2/12/2018 13:00:00 [02/12/2018 19:13:48]
Hardware
cisco Nexus9000 C9236C chassis
Intel(R) Xeon(R) CPU @ 1.80GHz with 16400560 kB of memory.
Processor Board ID FDO211613CA
Device name: AL03-N9236c-POD2-spine1
bootflash: 53298520 kB
Kernel uptime is 134 day(s), 14 hour(s), 48 minute(s), 25 second(s)
Last reset at 705173 usecs after Fri Mar 2 17:56:31 2018
Reason: Reset due to upgrade
System version: 7.0(3)I5(2)
Service:
plugin
--More-- Core Plugin, Ethernet Plugin
Active Package(s):
Passaggio 2. Verificare l'utilizzo corrente della licenza.
AL03-N9236c-POD2-spine1# show license uasgesage
Feature Ins Lic Status Expiry Date Comments
Count
--------------------------------------------------------------------------------
N9K_LIC_1G No - Unused -
VPN_FABRIC No - Unused -
FCOE_NPV_PKG No - Unused -
SECURITY_PKG No 0 Unused -
N9K_UPG_EX_10G No - Unused -
TP_SERVICES_PKG No - Unused -
NXOS_ADVANTAGE_GF No - Unused -
NXOS_ADVANTAGE_M4 No - Unused -
NXOS_ADVANTAGE_XF No - Unused -
NXOS_ESSENTIALS_GF No - Unused -
NXOS_ESSENTIALS_M4 No - Unused -
NXOS_ESSENTIALS_XF No - Unused -
SAN_ENTERPRISE_PKG No - Unused -
PORT_ACTIVATION_PKG No 0 Unused -
NETWORK_SERVICES_PKG No - Unused -
NXOS_ADVANTAGE_M8-16 No - Unused -
NXOS_ESSENTIALS_M8-16 No - Unused -
FC_PORT_ACTIVATION_PKG No 0 Unused -
LAN_ENTERPRISE_SERVICES_PKG Yes - In use Never -
--------------------------------------------------------------------------------
Passaggio 3. Verificare che i cavi fisici collegati alla porta dello switch-canale, alla Vlan e allo stato della porta siano corretti come previsto.
AL03-N9236c-POD2-spine1# show interface status | grep connected
mgmt0 -- connected routed full 100 --
Eth1/1 Connected to leaf1 connected trunk full 100G QSFP-100G-AOC5M
Eth1/2 Connected to leaf1 connected trunk full 100G QSFP-100G-AOC5M
Eth1/4 Connected to leaf2 connected trunk full 100G QSFP-100G-AOC5M
Eth1/5 Connected to leaf2 connected trunk full 100G QSFP-100G-AOC5M
Eth1/7 Connected to Leaf3 connected trunk full 100G QSFP-100G-AOC5M
Eth1/8 Connected to Leaf3 connected trunk full 100G QSFP-100G-AOC5M
Eth1/10 connect leaf4 connected trunk full 100G QSFP-100G-AOC5M
Eth1/11 connect leaf4 connected trunk full 100G QSFP-100G-AOC5M
Eth1/21/1 Connected to NMNET connected 101 full 10G QSFP-40G-SR4
Eth1/29 Connected to AL04- connected trunk full 100G QSFP-100G-AOC5M
Eth1/30 Connected to AL04- connected trunk full 100G QSFP-100G-AOC5M
Eth1/36/1 connected to ARG | connected routed full 10G QSFP-40G-SR4
Eth1/36/2 connected to ARG | disabled routed auto auto QSFP-40G-SR4
Eth1/36/3 connected to ARG | disabled routed auto auto QSFP-40G-SR4
Eth1/36/4 connected to ARG | disabled routed auto auto QSFP-40G-SR4
Po10 -- connected routed full 10G --
Po10.3101 -- connected routed full 10G --
Po10.3109 -- connected routed full 10G --
Po18 -- connected trunk full 100G --
Po21 -- connected trunk full 100G --
Po22 -- connected trunk full 100G --
Po25 -- connected trunk full 100G --
Po26 -- connected trunk full 100G --
Lo1 -- connected routed auto auto --
Vlan101 -- connected routed auto auto --
Vlan1025 vPCRF 1 and vPCRF connected routed auto auto --
Vlan1026 Replication for vP connected routed auto auto --
Vlan1031 External Traffic v connected routed auto auto --
Vlan1032 External External connected routed auto auto --
Vlan1033 External Traffic connected routed auto auto --
Vlan1034 External Traffic v connected routed auto auto --
Vlan1035 External Traffic v connected routed auto auto --
Vlan1036 External Traffic v connected routed auto auto --
Vlan1041 External Traffic A connected routed auto auto --
Vlan1042 External Traffic A connected routed auto auto --
Vlan1043 External Traffic A connected routed auto auto --
Vlan2601 Global Interchassi connected routed auto auto --
Vlan2602 NMNET Interchassis connected routed auto auto --
Passaggio 4. Verificare che i vicini BGP siano attivi.
AL03-N9236c-POD2-spine1# show ip bgp summary vrf all
BGP summary information for VRF NMNET, address family IPv4 Unicast
BGP router identifier 10.225.247.201, local AS number 65361
BGP table version is 2, IPv4 Unicast config peers 2, capable peers 1
0 network entries and 0 paths using 0 bytes of memory
BGP attribute entries [0/0], BGP AS path entries [0/0]
BGP community entries [0/0], BGP clusterlist entries [0/0]
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
10.0.100.6 4 65361 193834 193833 2 0 0 19w1d 0
10.250.180.185 4 65137 0 0 0 0 0 19w1d Idle
BGP summary information for VRF default, address family IPv4 Unicast
BGP router identifier 10.0.200.1, local AS number 65361
BGP table version is 161, IPv4 Unicast config peers 2, capable peers 2
18 network entries and 29 paths using 5700 bytes of memory
BGP attribute entries [3/480], BGP AS path entries [1/6]
BGP community entries [0/0], BGP clusterlist entries [0/0]
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
10.0.100.2 4 65361 3868481 3868419 161 0 0 19w1d 12
10.163.140.225 4 65137 3868521 3868365 161 0 0 19w1d 5
AL03-N9236c-POD2-spine1# show ipv6 bgp summary vrf all
Passaggio 5. Verificare che lo stato dei vicini BFD sia attivo.
AL03-N9236c-POD2-spine1# show bfd neighbors vrf all
OurAddr NeighAddr LD/RD RH/RS Holdown(mult) State Int Vrf
10.163.140.226 10.163.140.225 1090519042/1090519042 Up 107(3) Up Po10.3101 default
AL03-N9236c-POD2-spine1# show bfd ipv6 neighbor vrf all
Procedura di sostituzione dello switch
Passaggio 1. Installare il nuovo switch nel rack e collegare i cavi allo switch come indicato. La procedura di installazione dello switch è disponibile nel seguente collegamento: Guida all'installazione dell'hardware dello switch Spine Nexus 236C modalità NX-OS
Passaggio 2. Controllare la versione software dello switch Nexus Spine e aggiornare/effettuare il downgrade alla versione software seguendo il collegamento fornito: Guida all'aggiornamento e al downgrade del software Cisco Nexus serie 9000 NX-OS, versione 7.x
Passaggio 3. Trasferire il backup della configurazione sul nuovo switch e copiare la configurazione nella configurazione di avvio.
server-backup$ sftp admin@10.1.1.1
The authenticity of host '10.1.1.1 (10.1.1.1)' can't be established.
RSA key fingerprint is SHA256:fnbUmd2mL5yE94zxrRoKAlvYfQbheXJfQox7m3XfpIU.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '10.1.1.1' (RSA) to the list of known hosts.
User Access Verification
Password:
Password:
Connected to 10.1.1.1.
sftp> ls
20170607_193430_poap_15489_1.log 20170607_193430_poap_15489_2.log 20170607_193430_poap_15489_init.log backup-spine-cfg-2 backup-spine.cfg
backup_run_02152018 bios_daemon.dbg cfg-july25th cfg-july25th-spine1 flash:
flash:cfg-aug8th-ybattina-afterNSO flash:cfg-jul28th home l3-cfg-aug10th license_FDO211406K1_16.lic
lost+found nxos.7.0.3.I4.4.bin nxos.7.0.3.I5.2.bin nxos.7.0.3.I7.3.bin platform-sdk.cmd
scripts spine-config-bkp starat virtual-instance vlan.dat 100% 33KB 21.7KB/s 00:01
sftp> put backup-spine-cfg-2
Uploading backup-spine-cfg-2 to /backup-spine-cfg-2
backup-spine-cfg-2 100% 33KB 23.5KB/s 00:01
sftp> bye
AL03-N9236c-POD2-spine1# copy bootflash:///backup-spine-cfg-2 startup-config
Copy progress 100% 33KB
Copy complete, now saving to disk (please wait)...
Copy complete.
Passaggio 4. Ricaricare lo switch dopo aver caricato la configurazione di backup.
AL03-N9236c-POD2-spine1#reload
Verifica dell'interruttore del dorso sostituito
Dopo aver reso lo switch disponibile per l'accesso, eseguire i controlli di integrità sullo switch con dorso per verificare che lo switch sostituito sia disponibile nello stato previsto.
AL03-N9236c-POD2-spine1# show port-channel summary
AL03-N9236c-POD2-spine1# show ip bgp summary vrf all
AL03-N9236c-POD2-spine1# show ipv6 bgp summary vrf all
AL03-N9236c-POD2-spine1# show bfd neighbor vrf all
AL03-N9236c-POD2-spine1# show bfd ipv6 neighbor vrf all
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