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New Member

Nexus peer link down

Dears ,

I'm configuring the fabric path on F2 module between two Nexus 7k and these are not coming up below is the config what i did on both nexus 7K with version 6.1

N7K1

vlan ,2,3

  mode fabricpath

fabricpath switch-id 11

vpc domain 1

  fabricpath switch-id 10

interface port-channel1

  switchport

  switchport mode fabricpath

  vpc peer-link

int e1/47

switchport

  switchport mode fabricpath

int e1/48

switchport

  switchport mode fabricpath

N7K2:

vlan ,2,3

  mode fabricpath

fabricpath switch-id 11

vpc domain 1

  fabricpath switch-id 10

interface port-channel1

  switchport

  switchport mode fabricpath

  vpc peer-link

int e1/47

switchport

  switchport mode fabricpath

int e1/48

switchport

  switchport mode fabricpath

N7K1: sh interface po1

port-channel1 is down (No operational members)

admin state is up,

  Hardware: Port-Channel, address: 0000.0000.0000 (bia 0000.0000.0000)

  Description: **** Connected to Nexus 7K Core_1 ****

  MTU 1500 bytes, BW 100000 Kbit, DLY 10 usec

  reliability 255/255, txload 1/255, rxload 1/255

  Encapsulation ARPA, medium is p2p

  Port mode is FabricPath

  auto-duplex, auto-speed

  Input flow-control is off, output flow-control is off

  Auto-mdix is turned off

  Switchport monitor is off

  EtherType is 0x8100

  No members

  Last clearing of "show interface" counters never

  0 interface resets

  0 seconds input rate 0 bits/sec, 0 packets/sec

  0 seconds output rate 0 bits/sec, 0 packets/sec

  Load-Interval #2: 0 seconds

    input rate 0 bps, 0 pps; output rate 0 bps, 0 pps

sh vpc brief

Legend:

                (*) - local vPC is down, forwarding via vPC peer-link

vPC domain id                     : 1  

vPC+ switch id                    : 10

Peer status                       : peer link is down            

vPC keep-alive status             : peer is alive                

vPC fabricpath status             : peer not found               

Configuration consistency status  : failed 

Per-vlan consistency status       : success                      

Configuration inconsistency reason: Consistency Check Not Performed

Type-2 inconsistency reason       : Consistency Check Not Performed

vPC role                          : none established             

Number of vPCs configured         : 0  

Peer Gateway                      : Disabled

Dual-active excluded VLANs        : 2,3

Graceful Consistency Check        : Disabled (due to peer configuration)

Auto-recovery status              : Enabled (timeout = 240 seconds)

Fabricpath load balancing         : Disabled

Port Channel Limit                : limit to 244

vPC Peer-link status

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

id   Port   Status Active vlans   

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

1    Po1    down   -               

sh vpc consistency-parameters global

    Legend:

        Type 1 : vPC will be suspended in case of mismatch

Name                        Type  Local Value            Peer Value            

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

STP Mode                    1     Rapid-PVST             -                    

STP Disabled                1     None                   -                    

STP MST Region Name         1     ""                     -                    

STP MST Region Revision     1     0                      -                    

STP MST Region Instance to  1                            -                    

VLAN Mapping                                                                 

STP Loopguard               1     Disabled               -                    

STP Bridge Assurance        1     Enabled                -                    

STP Port Type, Edge         1     Normal, Disabled,      -                    

BPDUFilter, Edge BPDUGuard        Disabled                                    

STP MST Simulate PVST       1     Enabled                -                    

Allowed VLANs               -     -                      -                    

Local suspended VLANs       -     -                      -                    

switch-OMANTEL-Core_2# 

  • Other Data Center Subjects
3 REPLIES
New Member

Nexus peer link down

anybody can help me to solve the issue.

Cisco Employee

Nexus peer link down

Hello Jack,

The fabricpath switch-id must be different, only the sub-switch-id must be the same.

fabricpath switch-id 11 (Must be different in the other peer)

vpc domain 1

  fabricpath switch-id 10 (Must be the same)

Switch-id

http://www.cisco.com/en/US/docs/switches/datacenter/sw/6_x/nx-os/fabricpath/configuration/guide/fp_switching.html#wp1791414

Sub-switch-id (vPC+)

http://www.cisco.com/en/US/docs/switches/datacenter/sw/6_x/nx-os/fabricpath/configuration/guide/fp_interfaces.html#wp1674575

Be aware by VDC requirement as well.

Richard

Cisco Employee

Nexus peer link down

The response from Barbosa is correct. 

Take a look at the Quick Start Guide :: FabricPath; you can download the ppt file at https://supportforums.cisco.com/docs/DOC-34758

Look at and reference slide 14 & 17 - 19

I hope this helps you with your design.  You can also reference the Quick Start Guide :: vPC as well; this will give you the foundation when you run vPC+ in your FP environment. 

https://supportforums.cisco.com/community/netpro/data-center/others?view=documents

2015
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