VPC configuration of Nexus Switches

VPC configuration of Nexus

Enable udld and lacp

NX_SW01(config)#feature udld

NX_SW01(config)#feature lacp

NX_SW01(config)# inter ethernet 1/3, ethernet 2/3    select ports

NX_SW01 (config-if-range)# description VPC Peer Link   vpc peer link
NX_SW01 (config-if-range)# switchport
NX_SW01 (config-if-range)# switchport mode trunk
NX_SW01 (config-if-range)# spanning-tree port type network
NX_SW01 (config-if-range)# rate-mode dedicated
NX_SW01 (config-if-range)# udld aggressive
NX_SW01 (config-if-range)# channel-group 1 mode active
NX_SW01 (config-if-range)# no shut

NX_SW01 (config-if-range)#exit

Secondary Switch

NX_SW02(config)#feature udld

NX_SW02(config)#feature lacp

Set up vpc peer link

NX_SW02(config)# inter ethernet 1/3, ethernet 2/3    select ports

NX_SW02 (config-if-range)# description VPC Peer Link   vpc peer link
NX_SW02 (config-if-range)# switchport
NX_SW02 (config-if-range)# switchport mode trunk
NX_SW02 (config-if-range)# spanning-tree port type network
NX_SW02 (config-if-range)# rate-mode dedicated
NX_SW02 (config-if-range)# udld aggressive
NX_SW02 (config-if-range)# channel-group 1 mode active
NX_SW02 (config-if-range)# no shut

NX_SW02(config-if-range)#exit

Primary SW01 as primary of even vlans

NX_SW01 (config)# spanning-tree vlan  200,202,204,206,208,210 root primary

NX-SW01 (config)# spanning-tree vlan 201,203,205,207,209,211 root secondary

SW02 as Primary for odd VLAN

NX-SW02 (config)# spanning-tree vlan 201,203,205,207,209,211 root primary

NX_SW02 (config)# spanning-tree vlan  200,202,204,206,208,210 root secondary

Primary switch

vpc domain 1

  peer-switch

  role priority 1024

  system-priority 4096   >>>> same in both primary and secondary switches

  peer-keepalive destination 10.10.10.2 source 10.10.10.1

delay restore 45

  peer-gateway

  auto-recovery

  ip arp synchronize

Secondary Switch

vpc domain 1

  peer-switch

  role priority 2048  >>higher number

  system-priority 4096 >>>> same in both primary and secondary switches

  peer-keepalive destination 10.10.10.1 source 10.10.10.1

  delay restore 45

  peer-gateway

  auto-recovery

  ip arp synchronize

Check the vpc status

Sh vpc br

Sh vpc peer-keepalive

Create port channel for peer link

Primary Sw01

Int po 1

Switchport

Switchport mode trunk

spanning-tree port type network

  vpc peer-link

Secondary Sw02

Int po 1

Switchport

Switchport mode trunk

spanning-tree port type network

  vpc peer-link

It is a good idea keep vpc peer link in different vrf

Create new vrf

NX_SW01 (config)# vrf context VPC_KEEPALIVE

NX_SW01 (config)# interface ethernet 1/3, ethernet 2/3
NX_SW01 (config-if-range)# channel-group 1 mode active
NX_SW01 (config-if-range)# udld enable
NX_SW01 (config-if-range)# description VPC Peer-keepalive link
NX_SW01 (config-if-range)# no shut

Nx_sw02

NX_SW02 (config)# vrf context VPC_KEEPALIVE

NX_SW02 (config)# interface ethernet 1/3, ethernet 2/3
NX_SW02 (config-if-range)# channel-group 1 mode active
NX_SW02 (config-if-range)# udld enable
NX_SW02 (config-if-range)# description VPC Peer-keepalive link
NX_SW02 (config-if-range)# no shut

NX_SW01 (config-if-range)# inter port 1
NX_SW01 (config-if)# vrf member VPC_KEEPALIVE
NX_SW01 (config-if)# ip address 10.10.10.1/30
NX_SW01 (config-if)# no shut

Nexus2 (config-if-range)# inter port 1
Nexus2 (config-if)# vrf member VPC_KEEPALIVE
Nexus2 (config-if)# ip address 10.10.10.2/30
Nexus2 (config-if)# no shut

Vlan conf

Vlan 20

  no ip redirects

  ip address x.x.x.x/24

  no ipv6 redirects

 

  hsrp version 2

  hsrp 0

        preempt delay minimum 90 reload 120

    priority 120

    timers msec 300 msec 900

    ip x.x.x.1

int po 20

switchport
switchport mode trunk
vpc 20

Trunk to another switch

interface port-channel19

  switchport

  switchport mode trunk

  vpc 19

interface Ethernet1/5

  switchport

  switchport mode trunk

  channel-group 19 mode active

  no shutdown

Trunk to Host Server like UCS

interface Ethernet1/8

  

  switchport mode trunk

  channel-group 31 mode active

interface port-channel31

    switchport mode trunk

  vpc 31

Access Port

interface port-channel 32

 

  vpc 32

  switchport access vlan 205

  spanning-tree port type edge

interface Ethernet1/32

  switchport access vlan 205

  channel-group 32 mode active

Secondary switch

interface port-channel32

  vpc 32

  switchport access vlan 205

  spanning-tree port type edge

interface Ethernet1/32

 

  switchport access vlan 205

  channel-group 32 mode active

Port Mirroring using Nexus

Port mirroring using Nexus

SW08# conf t

WS08(config)# no monitor session all

WS08(config)# interface e1/21   select the port#

WS08(config-if)# switchport monitor

WS08(config-if)# exit

WS08(config)# monitor session 2

WS08(config-monitor)# destination interface e 1/21

WS08(config-monitor)# exit

WS08(config)# monitor session 2

WS08(config-monitor)# source ?

  interface  Configure interfaces

  vlan       Vlan type

  vsan       Vsan type

WS08(config-monitor)# source vlan 90-91  select the source

WS08(config-monitor)# exit

WS08(config)# exit

WS08# sh monitor session 2

WS08(config-monitor)# ?

  description  Session description (max 32 characters)

  destination  Destination configuration

  no           Negate a command or set its defaults

  shut         Shut a monitor session

  source       Source configuration

  end          Go to exec mode

  exit         Exit from command interpreter

  pop          Pop mode from stack or restore from name

  push         Push current mode to stack or save it under name

  where        Shows the cli context you are in

WS08(config-monitor)# no shut

WS08(config-monitor)# exit

WS08(config)# exit

WS08# sh monitor session 2

   session 2

---------------

type              : local

state             : up

source intf       :

    rx            :

    tx            :

    both          :

source VLANs      :

    rx            : 90-91

source VSANs      :

    rx            :

destination ports : Eth1/21      

Cisco Nexus 5000 software Upgrade

Cisco NEXUS 5000 Upgrade

Save the current config files into local memory using command copy run startup.

Also copy all the files the memory to a remote server using ftp or TFTP

The vrf for management is vrf management

Download both kickstart file and image files both have extension .bin

Copy the files from the local tftp server to Nexus switch using following command

copy tftp://10.0.1.1/n5000-uk9-kickstart.5.1.x.N1.1.bin bootflash:n5000-uk9-kickstart.5.1.x.N1.1.bin

vrf :management

Install Operation

Run the following command

install all kickstart bootflash:n5000-uk9-kickstart.5.1.x.N1.1.bin system bootflash:n5000-uk9.5.1.x.N1.1.bin

Switch will be reloaded once the upgrade is successful

Once reloaded, check the running version, it will update the new image.

Software
  BIOS:      version 3.5.0
  loader:    version N/A
  kickstart: version 5.1(3)N1(1)
  system:    version 5.1(3)N1(1)

 

Check the status of all PVCs, communication to FEXs, if all looks good- save the running config to memory.