- Základní nastaveníconf configuracni modwrite mem uloží aktuální konfiguraci do startup konfiguraceshow run zobrazí aktuální konfiguraciuser admin password nastaví heslo
- Management portssh server vrf mgmt zapnuti ssh na VRF mgmtshow ssh server vrf mgmt výpisint mgmt separatni mgmt interfaceip static 192.168.1.1/24 nastaveni IPno shut zapnuti portu
- Management na běžném routovaném portuvrf inband vytvoření vrf (routovací tabulka)int 1/1/1 tento port pouzijemevrf attach inband prirazeni portu do VRFip address 192.168.1.1/24 nastaveni IP, jedna se o routovany ifaceno shut zapnuti portussh server vrf inband zapnuti ssh na VRF inband
- Management na interface vlanvrf inband vytvoreni vrfvlan 10 tuto vlan pouzijemevrf attach inband prirazeni vlan do VRFip address 192.168.1.1/24 nastaveni IP, jedna se o routovany ifaceint 1/1/1 vyber portuno routing vzpnutí routovaného portu, je to bridgeno shut zapnuti portuvlan acc 10 prirazeni portu do vlanssh server vrf inband zapnuti ssh na VRF inband
- DNSip dns server-address 172.2.1.1ip dns server-address 172.4.1.1
- Sysloglogging 1.2.3.4 severity info vse posilej na syslog IP 1.2.3.4
- Nastavení SNMPsnmp-server vrf nazev (nebo default)snmp-server community nazevsnmp-server host 1.2.3.4 trap version v2c vrf default posílání trapů
- Čas - NTPntp server 172.24.8.30 iburstntp enableclock timezone europe/praguedis ntp statusdis clock
- Profily
port-access lldp-group IAP-Group
seq 20 match vendor-oui 000b86
seq 30 match sys-desc IAP
port-access role AP-Group
description ArubaIAP
poe-priority high
trust-mode dscp
vlan access XXX
port-access device-profile IAP-Profile
enable
associate role AP-Group
associate lldp-group IAP-Group
Dle typu zarizeni se nastavi prislusny port. Zde ukazka Aruba Instant AP, kteremu se nastavi port do prislusne vlany a nastavi se nejvyssi poe priorita. Nejprve si definujeme lldp (lze pouzit treba i CDP) pro identifikaci zarizeni. V dalsim kroku pripravime roli (konkretni konfigurace) pro AP. Nakonec vytovrime device profil, kde se spoji identikace a konfigurace. - Restart switche
boot system [primary | secondary]
VRF
Stohování
- VSX konfiguraceint lag 128 vytvoreni agregaceno routing vypnuti routingno shutdown zapnuti portulacp mode active zapnuti LACP protokoluexitint 1/1/1no shutdown zapnuti portulag 128 prirazeni do agregaceint 1/1/2no shutdown zapnuti portulag 128 prirazeni do agregaceexitshow lacp int vypis by mel obsahovat UP a flagy ALFNCDvsxrole primary na druhem secondaryinter-switch-link lag 128 prirazeni agregace do inter switch linkexitshow vsx status melo by ukazovat in-sync/operational/in-syncDruhy switch je konfirurovan stejne
- VSX keepaliveint 1/1/3 jedná se o routovaný portno shutdownip add 10.0.1.1/30exitvsxkeepalive peer 10.0.1.2 source 10.0.1.1linkup-delay-timer 5Druhy switch je konfirurovan stejne, pouze prohozene IP. Idealni jeste pro keepalive udelat samostatnou VRF
- VSF
První switch:
conf
vsf member 1
link 1 /1/51
link 2 /1/52
Určíme secondary master
vsf secondary-member 3
(reboot)Druhý switch:
vsf member 1
link 1 1/1/51
link 2 1/1/52
vsf renumber-to 2
(reboot)Další switche stejně ...
Show vsfMAC Address : 38:21:c7:5d:d0:c0 Secondary : Topology : Ring Status : No Split Split Detection Method : None Mbr Mac Address type Status ID --- ------------------- -------------- --------------- 1 38:21:c7:5d:d0:c0 JL668A Master 2 38:21:c7:6a:10:c0 JL668A Member 3 38:21:c7:5c:15:80 JL668A Member 4 38:21:c7:5a:61:40 JL668A Member 5 38:21:c7:62:66:00 JL668A Member 6 38:21:c7:58:22:40 JL668A Member 7 38:21:c7:5a:9c:00 JL668A Member 8 38:21:c7:63:a5:00 JL668A Member
Zapnuti split detekce - pres mgmt porty, treba pres switch nebo v pripade stohu 2 switchu naprimo
vsf split-detect mgmtPrepnuti na druheho membera
member X
- VSF aktualizace
usb mount
show usb
show usb file-system
copy usb:/jmeno_souboru primary
usb unmount
boot system primaryPo příkazu copy to chvíli trvá, kopíruje se update na jednotlivé switche
Link agregace
- Multi chassis agregace na VSXint lag 1 multi-chassis vytvoreni agregaceno routing vypnuti routingno shutdown zapnuti portulacp mode active zapnuti LACP protokoluexitint 1/1/1-2no shutdown zapnuti portulag 1 prirazeni do agregacevsx-sync vlans na primary pouze, řeší nám automatické přidání vlan na druhý switchexitvlan 10vsx-sync toto pouze na primary, vlan se definuje na obou prepinacich, ale pridani na lag pak staci na jednom a je synchronizovanoint vlan 10ip add ....int lag 1vlan trunk allowed 10Druhý switch podobněTest rozpojeníint lag 1shutdownshow int 1/1/2 lag interface k dalsim switchum. Nyni bude secondary ukazovat "disabled by feature"
- Agregace s LACPint lag 1 vytvoreni agregaceno routing vypnuti routingno shutdown zapnuti portulacp mode active zapnuti LACP protokoluexitint 1/1/1-2no shutdown zapnuti portulag 1 prirazeni do agregaceexit
Může se hodit
- Debug
debug {all | <MODULE-NAME>}debug destination {syslog | file | console | buffer} Do konzole mi v n2kter0 verzi nejdeshow debug buffer [module <MODULE-NAME>]
802.1x a MAC ověřování
- Ukázka konfigurace
clock timezone europe/prague
ntp server 192.168.199.254 iburst
ntp enableaaa authentication limit-login-attempts 3 lockout-time 5
radius-server host 192.168.199.250 key ciphertext xxxxxx
radius-server host 192.168.199.251 key ciphertext xxxxxxx
aaa authentication allow-fail-throughaaa accounting port-access start-stop interim 10
radius dyn-authorization enable
radius dyn-authorization client 192.168.199.250 secret-key ciphertext xxxxx
radius dyn-authorization client 192.168.199.251 secret-key ciphertext xxxxxvlan 11
name guest
vlan 199
name management
vlan 202
name klienti202
vlan 203
name klienti203
vlan 666
name criticalport-access role moje_critical_role
vlan access 666aaa authentication port-access dot1x authenticator
enable
aaa authentication port-access mac-auth
enableinterface 1/1/1
no shutdown
vlan access 11
spanning-tree bpdu-guard
spanning-tree port-type admin-edge
aaa authentication port-access allow-lldp-bpdu
aaa authentication port-access client-limit 3
aaa authentication port-access critical-role moje_critical_role
aaa authentication port-access dot1x authenticator
enable
aaa authentication port-access mac-auth
enableinterface vlan 199
ip address 192.168.199.1/24
ip route 0.0.0.0/0 192.168.199.254ip source-interface radius interface vlan199
Firmware 10.12 má volbu "port-access onboarding-method concurrent enable", ta umožní aby ověřování 802.1x i MAC proběhlo zároveň. Výchozí preference na portu je 802.1, potom mac. Když zařízení nezačne 802.1x, tak se na MAC ověření nikdy nedostane. Buď se tedy mumí nastavit tohle nebo na portu změnit pořadí pomocí "aaa authentication port-access auth-precedence dot1x mac-auth" Statistika radius serveru "show radius-server statistics authentication" Stav na portu "show aaa authentication port-access interface 1/1/5 client-status"
Jumbo
- Jumbo - statistiky
Pro bridge port je default 1500
int 1/1/5
mtu 9000
Kdyz je MTU 1500, tak by mel vetsi pakety zahodit. Nutno k tomu ale pripocitat jeste nekolik desitek bajtu (tagovani, l1, ...). Proto treba vypis je trochu matouci
Interface 1/1/5 is up
Admin state is up
Link state: up for 1 year (since Tue Sep 26 22:28:35 CEST 2023)
Link transitions: 1
Description: V4sw1a_LAG2_serverovnaCH
Persona:
Hardware: Ethernet, MAC Address: 08:f1:ea:5e:19:ef
MTU 1500
Type 40G-LR4 / QSFP+ LR4
Full-duplex
qos trust none
Speed 40000 Mb/s
Auto-negotiation is off
Flow-control: off
Error-control: off
Rate collection interval: 300 secondsRate RX TX Total (RX+TX)
---------------- -------------------- -------------------- --------------------
Mbits / sec 14.90 20.45 35.35
KPkts / sec 2.10 3.11 5.21
Unicast 2.09 3.10 5.19
Multicast 0.00 0.00 0.00
Broadcast 0.01 0.01 0.02
Utilization % 0.04 0.05 0.09Statistic RX TX Total
---------------- -------------------- -------------------- --------------------
Packets 639753751169 340659438724 980413189893
Unicast 639666520153 339558643483 979225163636
Multicast 4949479 213408998 218358477
Broadcast 82281537 887386243 969667780
Bytes 882284885563976 416190960863020 1298475846426996
Jumbos 539216130886 256609789794 795825920680
Dropped 0 0 0
Pause Frames 0 0 0
Errors 0 0 0
CRC/FCS 0 n/a 0
Collision n/a 0 0
Runts 0 n/a 0
Giants 0 n/a 0
Abych videl skutecnou velikost paketu, tak musim:
show int 1/1/5 extended
Jeste existuje interface vlan x a na nem IP MTU xxxx. To je pro pripad, ze je to routovany provoz.
Posledni pripad, ze je interface routovany a tam pak musi byt MTU i IP MTU
VLAN
- Trunk port bez nativni vlan
Nejde odebrat vlan trunk native vlan 1. Reseni je udelat slepou vlan a udelat ji na trunk portu jako nativni. Druha moznost je rict, ze nativni vlan je tagovana.
interface 1/1/5
description CAP-515
no shutdown
no routing
vlan trunk native 1 tag
vlan trunk allowed 1,100,200
exit