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Antonio Morales
Beginner

vPC on Nexus 5000 with Catalyst 6500 (no VSS)

Hi, I'm pretty new on the Nexus and UCS world so I have some many questions I hope you can help on getting some answers.

The diagram below is the configuration we are looking to deploy, that way because we do not have VSS on the 6500 switches so we can not create only one  Etherchannel to the 6500s.

UCS Diagram.png

Our blades inserted on the UCS chassis  have INTEL dual port cards, so they do not support full failover.

Questions I have are.

- Is this my best deployment choice?

- vPC highly depend on the management interface on the Nexus 5000 for the keep alive peer monitoring, so what is going to happen if the vPC brakes due to:

     - one of the 6500 goes down

          - STP?

          - What is going to happend with the Etherchannels on the remaining  6500?

     - the Management interface goes down for any other reason

          - which one is going to be the primary NEXUS?

Below is the list of devices involved and the configuration for the Nexus 5000 and 65000.

Any help is appreciated.

Devices

·         2  Cisco Catalyst with two WS-SUP720-3B each (no VSS)

·         2 Cisco Nexus 5010

·         2 Cisco UCS 6120xp

·         2 UCS Chassis

     -    4  Cisco  B200-M1 blades (2 each chassis)

          - Dual 10Gb Intel card (1 per blade)

vPC Configuration on Nexus 5000

TACSWN01

TACSWN02

feature vpc

vpc domain 5

reload restore

reload restore   delay 300

Peer-keepalive   destination 10.11.3.10

role priority 10

!

!--- Enables vPC, define vPC domain and peer   for keep alive

int ethernet 1/9-10

channel-group 50   mode active

!--- Put Interfaces on Po50

int port-channel 50

switchport mode   trunk

spanning-tree port   type network
vpc peer-link

!

!--- Po50 configured as Peer-Link for vPC

inter ethernet 1/17-18

description   UCS6120-A

switchport mode   trunk

channel-group 51   mode active

!

!--- Associates interfaces to Po51 connected   to UCS6120xp-A  

int port-channel 51

swithport mode   trunk

vpc 51

spannig-tree port   type edge trunk

!

!--- Associates vPC 51 to Po51

inter ethernet 1/19-20

description   UCS6120-B

switchport mode   trunk

channel-group 52   mode active

!

!--- Associates interfaces to Po51 connected   to UCS6120xp-B  

int port-channel 52

swithport mode   trunk

vpc 52

spannig-tree port   type edge trunk

!

!--- Associates vPC 52 to Po52

!----- CONFIGURATION for Connection to   Catalyst 6506

!

Int ethernet 1/1-3

description   Cat6506-01

switchport mode   trunk

channel-group 61   mode active

!

!--- Associate interfaces to Po61 connected   to Cat6506-01

Int port-channel 61

switchport mode   trunk

vpc 61

!

!--- Associates vPC 61 to Po61

Int ethernet 1/4-6

description   Cat6506-02

switchport mode   trunk

channel-group 62   mode active

!

!--- Associate interfaces to Po62 connected   to Cat6506-02

Int port-channel 62

switchport mode   trunk

vpc 62

!

!--- Associates vPC 62 to Po62

feature vpc

vpc domain 5

reload restore

reload restore   delay 300

Peer-keepalive   destination 10.11.3.9

role priority 20

!

!--- Enables vPC, define vPC domain and peer   for keep alive

int ethernet 1/9-10

channel-group 50   mode active

!--- Put Interfaces on Po50

int port-channel 50

switchport mode   trunk

spanning-tree port   type network
vpc peer-link

!

!--- Po50 configured as Peer-Link for vPC

inter ethernet 1/17-18

description   UCS6120-A

switchport mode   trunk

channel-group 51   mode active

!

!--- Associates interfaces to Po51 connected   to UCS6120xp-A  

int port-channel 51

swithport mode   trunk

vpc 51

spannig-tree port   type edge trunk

!

!--- Associates vPC 51 to Po51

inter ethernet 1/19-20

description   UCS6120-B

switchport mode   trunk

channel-group 52   mode active

!

!--- Associates interfaces to Po51 connected   to UCS6120xp-B  

int port-channel 52

swithport mode   trunk

vpc 52

spannig-tree port   type edge trunk

!

!--- Associates vPC 52 to Po52

!----- CONFIGURATION for Connection to   Catalyst 6506

!

Int ethernet 1/1-3

description   Cat6506-01

switchport mode   trunk

channel-group 61   mode active

!

!--- Associate interfaces to Po61 connected   to Cat6506-01

Int port-channel 61

switchport mode   trunk

vpc 61

!

!--- Associates vPC 61 to Po61

Int ethernet 1/4-6

description   Cat6506-02

switchport mode   trunk

channel-group 62   mode active

!

!--- Associate interfaces to Po62 connected   to Cat6506-02

Int port-channel 62

switchport mode   trunk

vpc 62

!

!--- Associates vPC 62 to Po62

 

vPC Verification

show vpc consistency-parameters

!--- show compatibility parameters

Show feature

!--- Use it to verify that vpc and lacp features are enabled.

show vpc brief

!--- Displays information about vPC Domain

Etherchannel configuration on TAC 6500s

TACSWC01

TACSWC02

interface range GigabitEthernet2/38 - 43

description   TACSWN01 (Po61 vPC61)

switchport

switchport trunk   encapsulation dot1q

switchport mode   trunk

no ip address

channel-group 61   mode active

interface range GigabitEthernet2/38 - 43

description   TACSWN02 (Po62 vPC62)

switchport

switchport trunk   encapsulation dot1q

switchport mode   trunk

no ip address

channel-group 62   mode active

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