fiber uplinking NX5020 to NX7000

[Rosa Ladeira]

I intend to uplink NX5020 2 fiber ports to a NX7000 2 fiber ports running port-channel.

I have created on both sides:

interface port-channel10

  switchport mode trunk

  description NX7000 (SFP) <--> NX5000 (SFP)

I have configure fiber interfaces like this

interface Ethernet1/1

switchport mode trunk

description description NX7000 (SFP) <--> NX5000 (SFP)

channel-group 10

no shutdown

interface Ethernet1/2

switchport mode trunk

description description NX7000 (SFP) <--> NX5000 (SFP)

channel-group 10

no shutdown

Is there any specific fiber port on NX5020 to uplink to NX7000?

Thanks

Rosa

[Partha Dasgupta · Accepted solution]

Hello Rosa,

There is no specific fiber port in N5K or N7K for configuring as uplink port.

as per the conf pasted , its looks like we have to enable feature lacp  and configure the port channel as

channel-group 10 mode active

This schould be done in both the devices (N7K and N5K)

Regards

Partha

[Rosa Ladeira]

Ooopss!

NX7000 is running version5.2(7).

By now it has fiber trunk connection with 4 Cisco6509 boxes running fine, feature lacp is disables.

NX5020 is running version 4.0(1a)N2(1).

It is being deployed.

Version 4 does not have any feature.

So what do you suggest - try and see ?

Regards

Rosa

[Partha Dasgupta]

Rosa,

You can verify the what are the feature available in  4.0(1a)N2(1). using show feature. I believe it will have feature lacp if it supports vpc

If feature lacp not available in N5K, you can give try specifying channel group 10 mode on ( I believe u might have already done it)

Regards

Partha

[Rosa Ladeira]

Partha as NX7000 has feature lacp disabled can I use "channel group 10 mode on " on both sides ?

Qhat are the benefis of using lacp ?

Regards

Rosa

[Partha Dasgupta · Accepted solution]

Rosa,

yes , you can use it.

In contrast to a static link aggregation, LACP provides the following advantages:^[8]

• Even if one physical links fails, it will detect if the point-to-point connection is using a media converter, so that the link status at the switching port remains up. Because LACPDUs do not form a component of this connection, the link will be removed from the link aggregate. This ensures that packets will not be lost due to the failed link.
  
• Both of the devices can mutually confirm the LAG configuration. With static link aggregation, errors in the configuration or wiring will often not be detected as quickly.
  

Regards

Partha

[Rosa Ladeira]

Partha lacp is realy great!

What a pity, but must upgrade nx-os.

Regards

Rosa

[Rosa Ladeira]

It works fine !