Cisco Stack etherchannel connection to Nortel Switch

Answered Question
Aug 18th, 2010
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I am currently investigating some improvements for our blade centres and I was wondering if it was possible to connect via an EtherChannel a Nortel 6x Layer 2/3 Copper and Fiber GB Ethernet Switch Module, to a Cisco Stacked Switch consisting of 2 Catalyst 3750 switches.


Essentially I want the same setup as the CrossStack EtherChannel example

(http://www.cisco.com/en/US/products/hw/switches/ps5023/products_configuration_example09186a00806cb982.shtml )

but with a Nortel Switch instead of the Cisco switch.


Is this possible? Can anyone please point me in the direction of some documentation or example that might help me? I want to get a rough idea of what I am doing first before I go and break everything. Any help would be most appreciated. I have attached a simple picture to hopefully help describe the setup.

Correct Answer by Reza Sharifi about 6 years 7 months ago

Hi Simon,


To be sure, it would require some testing, but as long as you are running 12.2(25) or later on the 3750s and the Nortel device supports LACP you should be fine.  Since LACP is a standard protocol most venders support it.


HTH

Reza

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Correct Answer
Reza Sharifi Wed, 08/18/2010 - 19:30
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Hi Simon,


To be sure, it would require some testing, but as long as you are running 12.2(25) or later on the 3750s and the Nortel device supports LACP you should be fine.  Since LACP is a standard protocol most venders support it.


HTH

Reza

sdemediuk Wed, 08/18/2010 - 21:00
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Thank you for your response. I can easily upgrade the switch's to be running 12.2(25). But is there an easy way to determine if the Nortel switch will support LACP, some sort of command, as i can not seem to find any documentation on the 32R1866 model anywhere.

sdemediuk Wed, 08/18/2010 - 22:12
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I just found a document that states it supports the IEEE standard "static link aggregation (ether channel compatible)


Is this the same as LACP? If not will it still work?

sdemediuk Thu, 08/19/2010 - 16:41
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This is the information i could gleam off the blade center about the switch.


  Product Name    Nortel 6x Layer 2/3 Copper and Fiber GB Ethernet Switch Module

  Description       Ethernet SM

  Part Number      32R1866

  FRU Number     32R1869



Any help programming the Nortel switch would be most appreciated as i only have experience with Cisco technologies. How different if the Nortel commands?


All I need it to do is form the etherchannel with the first 2 ports on the Nortel switch the other 4 ports I don't really care about. At the moment the switch is set to default for everything.

Reza Sharifi Thu, 08/19/2010 - 06:04
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sdemediuk wrote:


I just found a document that states it supports the IEEE standard "static link aggregation (ether channel compatible)


Is this the same as LACP? If not will it still work?


Yes, that is the same as LACP.  Most venders support LACP, but you would still need to test it.  You may want to talk to your Nortel SE and see if you need a code upgrade or you could use the existing code.


Good Luck

Reza

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