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configure vPC on nexus5K

kalugotla1
Level 1
Level 1

‎04-25-2011 07:59 AM - edited ‎03-06-2019 04:46 PM

need help in configuring vPC on my nexus5K .

Labels:
85375-Cisco ACE.vsd.zip
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8 Replies 8

kalugotla1
Level 1
Level 1

‎04-25-2011 08:57 AM

trying to configure vPC on nexus 5K running into issues.

                 PeerLink

Nexus5KA-----------------Nexus 5KB

    |                               |

    |                               |

Nexus2KA               Nexus2KB

                 |               |

                 Cisco Load Balancer

              

     Need to connect my cisco load balancer  interfaceGi1/1 --        interface Ethernet138/1/2 on nexus 2KA

                                                                  InterfaceGi1/2---interface Ethernet138/1/2 on nexus 2KB

need to configure vPC for the making load Balancer highly redundant

Here is the config i had on my 5Ks,able  to create a peer link and flex fabric ,but running into issues with vPC

Nexus 5K A:
vpc domain 2
  role priority 100
  system-priority 100
  peer-keepalive destination 10.18.168.72 source 10.18.168.71
interface port-channel101
  description PPPPPPPPPP-Eth 1/1, Eth 1/2-PPPPPPPPPPPPP
  switchport mode trunk
  vpc peer-link
  switchport trunk allowed vlan 1,10,200
  spanning-tree port type network
  speed 10000

interface port-channel110
  switchport mode trunk
  vpc 110
  switchport trunk allowed vlan 200


interface Ethernet1/1
  description PortChannelPortChannel 5kb 1/1,1/2 PortChannelPortChannel
  switchport mode trunk
  switchport trunk allowed vlan 10,200
  channel-group 101 mode active

interface Ethernet1/2
  description PortChannelPortChannel 5kb 1/1,1/2 PortChannelPortChannel
  switchport mode trunk
    switchport trunk allowed vlan 1,10,200
  channel-group 101 mode active

fex 138
  pinning max-links 1
  description FEX0138

interface Ethernet1/38
  fex associate 138
  switchport mode fex-fabric

interface Ethernet138/1/25
  description connection ace1
  switchport mode trunk
  switchport trunk allowed vlan 200
  channel-group 110 mode active


Nexus5KB:


vpc domain 2
  role priority 200
  system-priority 100
  peer-keepalive destination 10.18.168.71 source 10.18.168.72

interface port-channel101
  description PPPPPPPPPP-Eth 1/1, Eth 1/2-PPPPPPPPPPPPP
  switchport mode trunk
  vpc peer-link
   switchport trunk allowed vlan 1,10,200
  spanning-tree port type network
  speed 10000

interface port-channel110
  switchport mode trunk
  vpc 110
  switchport trunk allowed vlan 817

interface Ethernet1/1
  description PortChannelPortChannel 5ka 1/1,1/2 PortChannelPortChannel
  switchport mode trunk
    switchport trunk allowed vlan 1,10,200
  channel-group 101 mode active

interface Ethernet1/2
  description PortChannelPortChannel 5ka 1/1,1/2 PortChannelPortChannel
  switchport mode trunk
  switchport trunk allowed vlan 1,10,200
  channel-group 101 mode active

fex 138
  pinning max-links 1
  description FEX0138

interface Ethernet1/38
  fex associate 138
  switchport mode fex-fabric

interface Ethernet138/1/25
  description ace connection
  switchport mode trunk
  switchport trunk allowed vlan 200
  channel-group 110 mode active


ACE : this what I configured

interface port-channel110
  switchport mode trunk
  vpc 110
  switchport trunk allowed vlan 817

interface gigabitEthernet 1/1
  description conn to nex2kA
  switchport trunk allowed vlan 817

channel-group 110 mode active
  no shutdown
interface gigabitEthernet 1/2
  description conn to nex2kB

switchport trunk allowed vlan 817

channel-group 110 mode active
  no shutdown

0 Helpful

Shelley Bhalla
Level 3
Level 3
In response to kalugotla1

‎05-10-2011 06:56 AM

5KA:

interface port-channel110

  switchport mode trunk

  vpc 110

  switchport trunk allowed vlan 200

5KB:

interface port-channel110

  switchport mode trunk

  vpc 110

  switchport trunk allowed vlan 817

ACE :

interface port-channel110

  switchport mode trunk

  vpc 110

  switchport trunk allowed vlan 817

5KA config does not look right. The port cahnnel will not come up. Please change that and confirm.

Regards

Shelley.

0 Helpful

kalugotla1
Level 1
Level 1
In response to Shelley Bhalla

‎05-13-2011 05:32 AM

Shelly

vPC is working on the nexus ,But a question as ,Do I need to unable vPC on ACE

ACE :

interface port-channel110

  switchport mode trunk

  vpc 110

  switchport trunk allowed vlan 817

As still now I was only configuring ,Please advise ,why do I need to unabe vPC on my ACE

ACE :

interface port-channel110

  switchport mode trunk

  switchport trunk allowed vlan 817

0 Helpful

Shelley Bhalla
Level 3
Level 3
In response to kalugotla1

‎05-13-2011 05:44 AM

Basically vPC is like joining multiple interfaces into 1 port channel which spans multiple chassis. This creates a virtual port cahnnel. On the ACE as both links are on the same chassis vPC is not required. That can be a standard port channel.

I overlooked that config on the ace and should be removed as well.

Shelley.

0 Helpful

kalugotla1
Level 1
Level 1
In response to Shelley Bhalla

‎05-13-2011 06:51 AM

Shelly

Somehow my vpc-peer link is not coming up,this is the config I have for peer-link

NexusA

vrf context management
vlan 1,101-105,201-202,300,400-403,501-502
spanning-tree vlan 1,101,103,105,201,401,403,501 priority 24576
spanning-tree vlan 102,104,202,300,400,402,502 priority 28672
vpc domain 1
  role priority 1
  system-priority 100
  peer-keepalive destination 161.247.134.31

interface port-channel139
  switchport mode trunk
  spanning-tree port type network

interface Ethernet1/39
  description s0adcdmzsw1b
  switchport mode trunk
  channel-group 139 mode active

interface Ethernet1/40
  description s0adcdmzsw1b
  switchport mode trunk
  channel-group 139 mode active

NexusB

vrf context management
vlan 1,101-105,201-202,300,400-403,501-502
spanning-tree vlan 1,101,103,105,201,401,403,501 priority 28672
spanning-tree vlan 102,104,202,300,400,402,502 priority 24576
vpc domain 1
  role priority 2
  system-priority 100
  peer-keepalive destination 161.247.134.30

interface port-channel139
  switchport mode trunk
  spanning-tree port type network
  speed 10000


interface Ethernet1/39
  description s0adcdmzsw1a
  switchport mode trunk
  channel-group 139 mode active

interface Ethernet1/40
  description s0adcdmzsw1a
  switchport mode trunk
  channel-group 139 mode active

s0adcdmzsw1a# sh vpc peer-keepalive

vPC keep-alive status           : Suspended (Destination IP not reachable)
--Send status                   : Failed
--Receive status                : Failed
--Last update from peer         : (21018844) seconds, (849) msec

vPC Keep-alive parameters
--Destination                   : 161.247.134.31
--Keepalive interval            : 1000 msec
--Keepalive timeout             : 5 seconds
--Keepalive hold timeout        : 3 seconds
--Keepalive vrf                 : management
--Keepalive udp port            : 3200
--Keepalive tos                 : 192

0 Helpful

Shelley Bhalla
Level 3
Level 3
In response to kalugotla1

‎05-13-2011 07:02 AM

vPC peer keepalives are not passing through.

I dont see the default route configured for vrf management :

vrf context management

  ip route 0.0.0.0/0 161.247.134.254 (assuming that is your default gateway)

try that and then ping the 161.247.134.31

ping 161.247.134.31 vrf management

and see if you get pings through. if you do, your vpc peer link will be up (show vpc and show vpc role)

Shelley.

0 Helpful

kalugotla1
Level 1
Level 1
In response to Shelley Bhalla

‎05-13-2011 07:15 AM

Shelly

Another question ,do I need to add

switchport mode trunk allowed vlan 1,101-105,201-202,300,400-403,501-502

vpc peer-link

on the po139 ,do I need to or ,these 2 commands are optional

0 Helpful

Shelley Bhalla
Level 3
Level 3
In response to kalugotla1

‎05-13-2011 07:41 AM

You should have the "vpc peer-link" command on the link between nexus5kA and nexus5kB. This should not be there on the links between the n5k's and the ACE.

For the allowed vlan;s , that is up to you and what vlan;s you want to pass through the peer-link.

Shelley.

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