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Couple of questions

igor_bakman
Level 1
Level 1

‎04-10-2013 12:55 AM

Hi all,

I came across a couple of issues I cannot figure out:

  1. I have in my environment some switches that do not have the ablity to run "SHOW FLOGI DATABASE". The switches are from the 91XX family. However, I can see the attached WWNs (on every port) if I dig in the Cisco-fabric-manager. So what command in the CLI will deliver me the attached WWNs?
  2. Port-Channels: what are the benefits of configuring port-channels? why should I configure 2 ports that are trunking as one port-channel and what are the reasons of not doing so?

Best regards,

Igor.

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dynamoxxx
Level 5
Level 5

‎04-10-2013 05:04 AM 

Igor Bakman wrote:
Hi all,
I came across a couple of issues I cannot figure out:
  1. I have in my environment some switches that do not have the ablity to run "SHOW FLOGI DATABASE". The switches are from the 91XX family. However, I can see the attached WWNs (on every port) if I dig in the Cisco-fabric-manager. So what command in the CLI will deliver me the attached WWNs?

what models/code are those ? Are they running in npv mode ?

About PortChannels

A PortChannel has the following functionality:

•Provides a point-to-point connection over ISL (E ports) or EISL (TE ports). Multiple links can be combined into a PortChannel.

•Increases the aggregate bandwidth on an ISL by distributing traffic among all functional links in the channel.

•Load  balances across multiple links and maintains optimum bandwidth  utilization. Load balancing is based on the source ID, destination ID,  and exchange ID (OX ID).

•Provides  high availability on an ISL. If one link fails, traffic previously  carried on this link is switched to the remaining links. If a link goes  down in a PortChannel, the upper protocol is not aware of it. To the  upper protocol, the link is still there, although the bandwidth is  diminished. The routing tables are not affected by link failure.  PortChannels may contain up to 16 physical links and may span multiple  modules for added high availability.

@dynamoxxx