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2 N5k with one Core switch

smartboy2255
Level 1
Level 1

‎10-03-2011 08:13 PM - edited ‎03-01-2019 07:00 AM

Dear all,

   I have two N5K and one core switch.I have conected my two N5K with one Core Switch as per diagram attached.If I connect both redundant link to core switch my traffic is not going properly .As per the debug ip packet traffic is going to peer link and getting dropped instead of Core uplink.Kindly help...

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7 Replies 7

Derek Zhang
Cisco Employee
Cisco Employee

‎10-03-2011 09:12 PM

You probably need to describe the issue more specifically,

which vlan, ip header, inter-vlan routing issue or same vlan traffic?

Where is the default gateway? any HSRP protocol enabled?

vpc have the protection to drop the packet has non-local mac and traverse via the peer-link.

http://www.jeremyfilliben.com/2010/08/hsrp-vpc-and-vpc-peer-gateway-command.html

but not sure the exact issue you have.

0 Helpful

smartboy2255
Level 1
Level 1
In response to Derek Zhang

‎10-03-2011 11:06 PM

Hi Dazhi,

    Pls find the attached config of my network  eg:.I am trying to SSH to my Primary nexus IP (vlan 133 ip) , i am able to access. But same time if try to access secondary nexus IP (vlan 133). it wont happen.sometimes it will happen viceversa.VPC details I have shared in the diagram. But from the host connected from my nexus 5K i am able to reach all IP's.

I have done debug on both nexus , during the issue packect will forward to port channel 10 (peer link) and getting dropped instead of forwarding to vpc 20.

pls help..

Regards,

Ajith

0 Helpful

smartboy2255
Level 1
Level 1
In response to smartboy2255

‎10-03-2011 11:12 PM

Primary Nexus Config :

NexusPrimary#

NexusPrimary#

NexusPrimary#

NexusPrimary# sh run

!Command: show running-config

!Time: Sat Sep 24 11:31:16 2011

version 5.0(2)N2(1)

feature fcoe

no feature telnet

no telnet server enable

no feature http-server

cfs eth distribute

feature udld

feature interface-vlan

feature lacp

feature vpc

feature lldp

feature fex

username admin password 5 $1$kxVjQ5Q7$QEbkT8giP8aRgq7Om800a1  role network-admin

username cisco password 5 $1$JJEua1eA$pDJ0d8VQiEZVU4nR2HxAw/  role network-opera

tor

no password strength-check

[7m--More-- [m

ip domain-lookup

ip domain-lookup

hostname NexusPrimary

class-map type qos class-fcoe

class-map type queuing class-fcoe

  match qos-group 1

class-map type queuing class-all-flood

  match qos-group 2

class-map type queuing class-ip-multicast

  match qos-group 2

class-map type network-qos class-fcoe

  match qos-group 1

class-map type network-qos class-all-flood

  match qos-group 2

class-map type network-qos class-ip-multicast

  match qos-group 2

fex 101

  pinning max-links 1

  description "***N2K-Pri2K***"

fex 102

  pinning max-links 1

  description "***To -SEC2K**"

[7m--More-- [m

snmp-server user admin network-admin auth md5 0x3c47e8ce70ceb780b7ec0ccac5ac08be

priv 0x3c47e8ce70ceb780b7ec0ccac5ac08be localizedkey

snmp-server user cisco network-operator auth md5 0x3d19380b8d99a3b36e269a32ef72a

c3b priv 0x3d19380b8d99a3b36e269a32ef72ac3b localizedkey

snmp-server enable traps entity fru

vrf context management

  ip route 0.0.0.0/0 10.10.10.2

vlan 1,130,133

vpc domain 133

  role priority 4096

  peer-keepalive destination 10.10.10.2 source 10.10.10.1

interface Vlan1

  no shutdown

interface Vlan130

  no shutdown

interface Vlan133

  no shutdown

  ip address 10.100.133.37/24

[7m--More-- [m

[K

interface port-channel10

  switchport mode trunk

  vpc peer-link

  spanning-tree port type network

  speed 10000

interface port-channel20

  description ***Uplink to CoreSwitch***

  switchport mode trunk

  vpc 20

  speed 1000

interface port-channel30

  description ***Uplink to EMC***

  switchport mode trunk

  vpc 30

  speed 10000

interface port-channel40

  description ***Uplink to EMC2***

  switchport mode trunk

[7m--More-- [m

  vpc 40

  speed 10000

interface port-channel101

  description ***CONNT-N2K-1SEC***

  switchport mode fex-fabric

  vpc 101

  fex associate 101

interface port-channel102

  description ***CONNT-N2K-2SEC***

  switchport mode fex-fabric

  vpc 102

  fex associate 102

interface fc2/1

interface fc2/2

interface fc2/3

interface fc2/4

[7m--More-- [m

[K

interface fc2/5

interface fc2/6

interface fc2/7

interface fc2/8

interface Ethernet1/1

  switchport mode trunk

  speed 1000

  channel-group 20

interface Ethernet1/2

  switchport mode trunk

interface Ethernet1/3

interface Ethernet1/4

interface Ethernet1/5

[7m--More-- [m

[K

interface Ethernet1/6

interface Ethernet1/7

interface Ethernet1/8

interface Ethernet1/9

interface Ethernet1/10

interface Ethernet1/11

interface Ethernet1/12

interface Ethernet1/13

interface Ethernet1/14

interface Ethernet1/15

interface Ethernet1/16

[7m--More-- [m

  speed 1000

interface Ethernet1/17

interface Ethernet1/18

interface Ethernet1/19

interface Ethernet1/20

interface Ethernet1/21

interface Ethernet1/22

interface Ethernet1/23

interface Ethernet1/24

interface Ethernet1/25

interface Ethernet1/26

[7m--More-- [m

interface Ethernet1/27

interface Ethernet1/28

interface Ethernet1/29

  switchport mode trunk

interface Ethernet1/30

interface Ethernet1/31

  description Connected to Nexus 5K

  switchport mode trunk

  channel-group 10 mode active

interface Ethernet1/32

  description Connected to Nexus 5K

  switchport mode trunk

  channel-group 10 mode active

interface Ethernet2/1

  description ***FEX 102***

  fex associate 102

[7m--More-- [m

  switchport mode fex-fabric

  channel-group 102

interface Ethernet2/2

  description ***Fex 101***

  fex associate 101

  switchport mode fex-fabric

  channel-group 101

interface Ethernet2/3

  switchport mode trunk

  channel-group 30 mode active

interface Ethernet2/4

  switchport mode trunk

  channel-group 40 mode active

interface Ethernet2/5

interface Ethernet2/6

  switchport mode trunk

[7m--More-- [m

interface Ethernet2/7

interface Ethernet2/8

interface mgmt0

  ip address 10.10.10.1/30

interface Ethernet101/1/1

  switchport access vlan 133

interface Ethernet101/1/2

  switchport access vlan 133

  switchport trunk native vlan 133

interface Ethernet101/1/3

  switchport access vlan 133

interface Ethernet101/1/4

  switchport access vlan 133

interface Ethernet101/1/5

  switchport access vlan 133

[7m--More-- [m

[K

interface Ethernet101/1/6

  switchport access vlan 133

interface Ethernet101/1/7

  switchport access vlan 133

interface Ethernet101/1/8

  switchport access vlan 133

interface Ethernet101/1/9

  switchport access vlan 133

interface Ethernet101/1/10

  switchport access vlan 133

interface Ethernet101/1/11

  switchport access vlan 133

interface Ethernet101/1/12

  switchport access vlan 133

[7m--More-- [m

interface Ethernet101/1/13

  switchport access vlan 133

interface Ethernet101/1/14

  switchport access vlan 133

interface Ethernet101/1/15

  switchport access vlan 133

interface Ethernet101/1/16

  switchport access vlan 133

interface Ethernet101/1/17

  switchport access vlan 133

interface Ethernet101/1/18

  switchport access vlan 133

interface Ethernet101/1/19

  switchport access vlan 133

interface Ethernet101/1/20

[7m--More-- [m

  switchport access vlan 133

interface Ethernet101/1/21

  switchport access vlan 133

interface Ethernet101/1/22

  switchport access vlan 133

interface Ethernet101/1/23

  switchport access vlan 133

interface Ethernet101/1/24

  switchport access vlan 133

interface Ethernet101/1/25

  switchport access vlan 133

interface Ethernet101/1/26

  switchport access vlan 133

interface Ethernet101/1/27

  switchport access vlan 133

[7m--More-- [m

[K

interface Ethernet101/1/28

  switchport access vlan 133

interface Ethernet101/1/29

  switchport access vlan 133

interface Ethernet101/1/30

  switchport access vlan 133

interface Ethernet101/1/31

  switchport access vlan 133

interface Ethernet101/1/32

  switchport access vlan 133

interface Ethernet101/1/33

  switchport access vlan 133

interface Ethernet101/1/34

  switchport access vlan 133

[7m--More-- [m

interface Ethernet101/1/35

  switchport access vlan 133

interface Ethernet101/1/36

  switchport access vlan 133

interface Ethernet101/1/37

  switchport access vlan 133

interface Ethernet101/1/38

  switchport access vlan 133

interface Ethernet101/1/39

  switchport access vlan 133

interface Ethernet101/1/40

  switchport access vlan 133

interface Ethernet101/1/41

  switchport access vlan 133

interface Ethernet101/1/42

[7m--More-- [m

  switchport access vlan 133

interface Ethernet101/1/43

  switchport access vlan 133

interface Ethernet101/1/44

  switchport access vlan 133

interface Ethernet101/1/45

  switchport access vlan 133

interface Ethernet101/1/46

  switchport access vlan 133

interface Ethernet101/1/47

  switchport access vlan 133

interface Ethernet101/1/48

  switchport access vlan 133

interface Ethernet102/1/1

  switchport access vlan 133

[7m--More-- [m

[K

interface Ethernet102/1/2

  switchport access vlan 133

interface Ethernet102/1/3

  switchport access vlan 133

interface Ethernet102/1/4

  switchport access vlan 133

interface Ethernet102/1/5

  switchport access vlan 133

interface Ethernet102/1/6

  switchport access vlan 133

interface Ethernet102/1/7

  switchport access vlan 133

interface Ethernet102/1/8

  switchport access vlan 133

[7m--More-- [m

interface Ethernet102/1/9

  switchport access vlan 133

interface Ethernet102/1/10

  switchport access vlan 133

interface Ethernet102/1/11

  switchport access vlan 133

interface Ethernet102/1/12

  switchport access vlan 133

interface Ethernet102/1/13

  switchport access vlan 133

interface Ethernet102/1/14

  switchport access vlan 133

interface Ethernet102/1/15

  switchport access vlan 133

interface Ethernet102/1/16

[7m--More-- [m

  switchport access vlan 133

interface Ethernet102/1/17

  switchport access vlan 133

interface Ethernet102/1/18

  switchport access vlan 133

interface Ethernet102/1/19

  switchport access vlan 133

interface Ethernet102/1/20

  switchport access vlan 133

interface Ethernet102/1/21

  switchport access vlan 133

interface Ethernet102/1/22

  switchport access vlan 133

interface Ethernet102/1/23

  switchport access vlan 133

[7m--More-- [m

[K

interface Ethernet102/1/24

  switchport access vlan 133

interface Ethernet102/1/25

  switchport access vlan 133

interface Ethernet102/1/26

  switchport access vlan 133

interface Ethernet102/1/27

  switchport access vlan 133

interface Ethernet102/1/28

  switchport access vlan 133

interface Ethernet102/1/29

  switchport access vlan 133

interface Ethernet102/1/30

  switchport access vlan 133

[7m--More-- [m

interface Ethernet102/1/31

  switchport access vlan 133

interface Ethernet102/1/32

  switchport access vlan 133

interface Ethernet102/1/33

  switchport access vlan 133

interface Ethernet102/1/34

  switchport access vlan 133

interface Ethernet102/1/35

  switchport access vlan 133

interface Ethernet102/1/36

  switchport access vlan 133

interface Ethernet102/1/37

  switchport access vlan 133

interface Ethernet102/1/38

[7m--More-- [m

  switchport access vlan 133

interface Ethernet102/1/39

  switchport access vlan 133

interface Ethernet102/1/40

  switchport access vlan 133

interface Ethernet102/1/41

  switchport access vlan 133

interface Ethernet102/1/42

  switchport access vlan 133

interface Ethernet102/1/43

  switchport access vlan 133

interface Ethernet102/1/44

  switchport access vlan 133

interface Ethernet102/1/45

  switchport access vlan 133

[7m--More-- [m

[K

interface Ethernet102/1/46

  switchport access vlan 133

interface Ethernet102/1/47

  switchport access vlan 133

interface Ethernet102/1/48

  switchport access vlan 133

line console

line vty

boot kickstart bootflash:/n5000-uk9-kickstart.5.0.2.N2.1.bin

boot system bootflash:/n5000-uk9.5.0.2.N2.1.bin

ip route 0.0.0.0/0 10.100.133.1

interface fc2/1

interface fc2/2

interface fc2/3

interface fc2/4

interface fc2/5

interface fc2/6

interface fc2/7

interface fc2/8

[7m--More-- [m

[K

NexusPrimary#     

NexusPrimary#

0 Helpful

smartboy2255
Level 1
Level 1
In response to smartboy2255

‎10-03-2011 11:13 PM

Secondary Nexus:

NexusSecondary#

NexusSecondary#

NexusSecondary#

NexusSecondary#

NexusSecondary#

NexusSecondary# sh  [J  [Jter len 0

NexusSecondary#

NexusSecondary#

NexusSecondary#

NexusSecondary#

NexusSecondary#

NexusSecondary# sh run

!Command: show running-config

!Time: Sat Sep 24 11:30:21 2011

version 5.0(2)N2(1)

feature fcoe

no feature telnet

no telnet server enable

no feature http-server

cfs eth distribute

feature udld

feature interface-vlan

feature lacp

feature vpc

feature lldp

feature fex

username admin password 5 $1$XAcql/pI$rgo509TPZA6LhdRDHKjBG/  role network-admin

no password strength-check

ip domain-lookup

ip domain-lookup

hostname NexusSecondary

class-map type qos class-fcoe

class-map type queuing class-fcoe

  match qos-group 1

class-map type queuing class-all-flood

  match qos-group 2

class-map type queuing class-ip-multicast

  match qos-group 2

class-map type network-qos class-fcoe

  match qos-group 1

class-map type network-qos class-all-flood

  match qos-group 2

class-map type network-qos class-ip-multicast

  match qos-group 2

fex 101

  pinning max-links 1

  description "***FEX 101***"

fex 102

  pinning max-links 1

  description "***To -SEC2K**"

snmp-server user admin network-admin auth md5 0xd07e8beae6b3a0324a6e55ea455e7309 priv 0xd07e8beae6b3a0324a6e55ea455e7309 localizedkey

snmp-server enable traps entity fru

vrf context management

  ip route 0.0.0.0/0 10.10.10.1

vlan 1,130,133

vpc domain 133

  role priority 8192

  peer-keepalive destination 10.10.10.1 source 10.10.10.2

interface Vlan1

  no shutdown

interface Vlan130

  no shutdown

interface Vlan133

  no shutdown

  ip address 10.100.133.38/24

interface port-channel10

  switchport mode trunk

  vpc peer-link

  switchport trunk native vlan 133

  spanning-tree port type network

  speed 10000

interface port-channel20

  description ***Uplink to CoreSwitch***

  switchport mode trunk

  vpc 20

  speed 1000

interface port-channel30

  description ***Uplink to EMC***

  switchport mode trunk

  vpc 30

interface port-channel40

  description ***Uplink to EMC2***

  switchport mode trunk

  vpc 40

interface port-channel101

  description ***CONNT-N2K-1SEC***

  switchport mode fex-fabric

  vpc 101

  fex associate 101

interface port-channel102

  description ***CONNT-N2K-2SEC***

  switchport mode fex-fabric

  vpc 102

  fex associate 102

interface fc2/1

interface fc2/2

interface fc2/3

interface fc2/4

interface fc2/5

interface fc2/6

interface fc2/7

interface fc2/8

interface Ethernet1/1

  switchport mode trunk

  speed 1000

  channel-group 20

interface Ethernet1/2

  switchport mode trunk

interface Ethernet1/3

interface Ethernet1/4

interface Ethernet1/5

  switchport access vlan 133

  speed 1000

interface Ethernet1/6

interface Ethernet1/7

interface Ethernet1/8

interface Ethernet1/9

interface Ethernet1/10

interface Ethernet1/11

interface Ethernet1/12

interface Ethernet1/13

interface Ethernet1/14

interface Ethernet1/15

interface Ethernet1/16

interface Ethernet1/17

interface Ethernet1/18

interface Ethernet1/19

interface Ethernet1/20

interface Ethernet1/21

interface Ethernet1/22

interface Ethernet1/23

interface Ethernet1/24

interface Ethernet1/25

interface Ethernet1/26

interface Ethernet1/27

interface Ethernet1/28

interface Ethernet1/29

  switchport mode trunk

interface Ethernet1/30

interface Ethernet1/31

  description Connected to Nexus 5K

  switchport mode trunk

  switchport trunk native vlan 133

  channel-group 10 mode active

interface Ethernet1/32

  description Connected to Nexus 5K

  switchport mode trunk

  switchport trunk native vlan 133

  channel-group 10 mode active

interface Ethernet2/1

  description ***FEX 102***

  fex associate 102

  switchport mode fex-fabric

  channel-group 102

interface Ethernet2/2

  description ***Fex 101***

  fex associate 101

  switchport mode fex-fabric

  channel-group 101

interface Ethernet2/3

  switchport mode trunk

  channel-group 30 mode active

interface Ethernet2/4

  switchport mode trunk

  channel-group 40 mode active

interface Ethernet2/5

  switchport mode trunk

interface Ethernet2/6

interface Ethernet2/7

interface Ethernet2/8

interface mgmt0

  ip address 10.10.10.2/30

interface Ethernet101/1/1

  switchport access vlan 133

interface Ethernet101/1/2

  switchport access vlan 133

interface Ethernet101/1/3

  switchport access vlan 133

interface Ethernet101/1/4

  switchport access vlan 133

interface Ethernet101/1/5

  switchport access vlan 133

interface Ethernet101/1/6

  switchport access vlan 133

interface Ethernet101/1/7

  switchport access vlan 130

interface Ethernet101/1/8

  switchport access vlan 133

interface Ethernet101/1/9

  switchport access vlan 133

interface Ethernet101/1/10

  switchport access vlan 133

interface Ethernet101/1/11

  switchport access vlan 133

interface Ethernet101/1/12

  switchport access vlan 133

interface Ethernet101/1/13

  switchport access vlan 133

interface Ethernet101/1/14

  switchport access vlan 133

interface Ethernet101/1/15

  switchport access vlan 133

interface Ethernet101/1/16

  switchport access vlan 133

interface Ethernet101/1/17

  switchport access vlan 133

interface Ethernet101/1/18

  switchport access vlan 133

interface Ethernet101/1/19

  switchport access vlan 133

interface Ethernet101/1/20

  switchport access vlan 133

interface Ethernet101/1/21

  switchport access vlan 133

interface Ethernet101/1/22

  switchport access vlan 133

interface Ethernet101/1/23

  switchport access vlan 133

interface Ethernet101/1/24

  switchport access vlan 133

interface Ethernet101/1/25

  switchport access vlan 133

interface Ethernet101/1/26

  switchport access vlan 133

interface Ethernet101/1/27

  switchport access vlan 133

interface Ethernet101/1/28

  switchport access vlan 133

interface Ethernet101/1/29

  switchport access vlan 133

interface Ethernet101/1/30

  switchport access vlan 133

interface Ethernet101/1/31

  switchport access vlan 133

interface Ethernet101/1/32

  switchport access vlan 133

interface Ethernet101/1/33

  switchport access vlan 133

interface Ethernet101/1/34

  switchport access vlan 133

interface Ethernet101/1/35

  switchport access vlan 133

interface Ethernet101/1/36

  switchport access vlan 133

interface Ethernet101/1/37

  switchport access vlan 133

interface Ethernet101/1/38

  switchport access vlan 133

interface Ethernet101/1/39

  switchport access vlan 133

interface Ethernet101/1/40

  switchport access vlan 133

interface Ethernet101/1/41

  switchport access vlan 133

interface Ethernet101/1/42

  switchport access vlan 133

interface Ethernet101/1/43

  switchport access vlan 133

interface Ethernet101/1/44

  switchport access vlan 133

interface Ethernet101/1/45

  switchport access vlan 133

interface Ethernet101/1/46

  switchport access vlan 133

interface Ethernet101/1/47

  switchport access vlan 133

interface Ethernet101/1/48

  switchport access vlan 133

interface Ethernet102/1/1

  switchport access vlan 133

interface Ethernet102/1/2

  switchport access vlan 133

interface Ethernet102/1/3

  switchport access vlan 133

interface Ethernet102/1/4

  switchport access vlan 133

interface Ethernet102/1/5

  switchport access vlan 133

interface Ethernet102/1/6

  switchport access vlan 133

interface Ethernet102/1/7

  switchport access vlan 130

interface Ethernet102/1/8

  switchport access vlan 133

interface Ethernet102/1/9

  switchport access vlan 133

interface Ethernet102/1/10

  switchport access vlan 133

interface Ethernet102/1/11

  switchport access vlan 133

interface Ethernet102/1/12

  switchport access vlan 133

interface Ethernet102/1/13

  switchport access vlan 133

interface Ethernet102/1/14

  switchport access vlan 133

interface Ethernet102/1/15

  switchport access vlan 133

interface Ethernet102/1/16

  switchport access vlan 133

interface Ethernet102/1/17

  switchport access vlan 133

interface Ethernet102/1/18

  switchport access vlan 133

interface Ethernet102/1/19

  switchport access vlan 133

interface Ethernet102/1/20

  switchport access vlan 133

interface Ethernet102/1/21

  switchport access vlan 133

interface Ethernet102/1/22

  switchport access vlan 133

interface Ethernet102/1/23

  switchport access vlan 133

interface Ethernet102/1/24

  switchport access vlan 133

interface Ethernet102/1/25

  switchport access vlan 133

interface Ethernet102/1/26

  switchport access vlan 133

interface Ethernet102/1/27

  switchport access vlan 133

interface Ethernet102/1/28

  switchport access vlan 133

interface Ethernet102/1/29

  switchport access vlan 133

interface Ethernet102/1/30

  switchport access vlan 133

interface Ethernet102/1/31

  switchport access vlan 133

interface Ethernet102/1/32

  switchport access vlan 133

interface Ethernet102/1/33

  switchport access vlan 133

interface Ethernet102/1/34

  switchport access vlan 133

interface Ethernet102/1/35

  switchport access vlan 133

interface Ethernet102/1/36

  switchport access vlan 133

interface Ethernet102/1/37

  switchport access vlan 133

interface Ethernet102/1/38

  switchport access vlan 133

interface Ethernet102/1/39

  switchport access vlan 133

interface Ethernet102/1/40

  switchport access vlan 133

interface Ethernet102/1/41

  switchport access vlan 133

interface Ethernet102/1/42

  switchport access vlan 133

interface Ethernet102/1/43

  switchport access vlan 133

interface Ethernet102/1/44

  switchport access vlan 133

interface Ethernet102/1/45

  switchport access vlan 133

interface Ethernet102/1/46

  switchport access vlan 133

interface Ethernet102/1/47

  switchport access vlan 133

interface Ethernet102/1/48

  switchport access vlan 133

line console

line vty

boot kickstart bootflash:/n5000-uk9-kickstart.5.0.2.N2.1.bin

boot system bootflash:/n5000-uk9.5.0.2.N2.1.bin

ip route 0.0.0.0/0 10.100.133.1

interface fc2/1

interface fc2/2

interface fc2/3

interface fc2/4

interface fc2/5

interface fc2/6

interface fc2/7

interface fc2/8

NexusSecondary#

NexusSecondary#

NexusSecondary#

NexusSecondary#

0 Helpful

Derek Zhang
Cisco Employee
Cisco Employee
In response to smartboy2255

‎10-04-2011 01:42 AM

So your problem is:

All hosts under Fex in same vlan 133 can ssh/ping both Nexus SVI.

But host behind(in same vlan or different vlan?) Nortel Core switch  or Nortel Core Switch SVI ssh Nexus SVI failed

you need to konw the ssh src/dst-mac, src/dst-ip of the failure/successful scenario.

And check the path of the fowarding/return path of the ssh packet.

From the debug you mentioned, it seems to me the source of the ssh mac address is learnt via peer-link instead of directly connectted vpc 20 locally.

Or better a TAC case to address all the question above.(also possible bug).

0 Helpful

smartboy2255
Level 1
Level 1
In response to Derek Zhang

‎10-04-2011 11:43 PM

Hi Dazhi,

      I have some restriction to raise the TAC..I am suspecting the problem is deisgn. Is it possible to connect my two uplinks from Nexus 5K to my Core Switch ?If possible whether we need to bind both in same VPC ?Can you pls share me some sample template and diagram with one core switch.

Regards,

Ajith

0 Helpful

Derek Zhang
Cisco Employee
Cisco Employee
In response to smartboy2255

‎10-09-2011 07:27 PM

This documentation is a good desigh example with vpc yes-or-no:

http://bradhedlund.com/2010/12/16/routing-over-nexus-7000-vpc-peer-link-yes-and-no/

binding 2 uplinks(need in same vpc x)  to core switch (single Etherchannel) is supported.

E.g.:

Core Switch(example by using cisco switch)

interface port-channel 1

switich mode trunk

interface Te1/1
channel-group 1 mode active

interface Te1/2

channel-group 1 mode active

N5K1: (Eth1/1 <-> Te1/1 on Core)

interface port-channel 1

vpc 1

interface ether 1/1

channel-group 1 mode active

N5K2:(Eth1/1 <-> Te1/2 on Core)

inter port-channel 1

vpc 1

interface ether 1/1

chann-group 1 mode active

some more reference:

http://docwiki.cisco.com/wiki/Nexus_5000_vPC_Design_Best_Practices

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