Cisco Nexus oversubscription question

Hi,

I have a nexus 7K with module N7K-M132XP-12L. This module has 32 10G
ports but can give you only 80G throughput from the card since the ports are
in shared mode. So that means i will have a port-group of 1,3,5,7 and can use
either one of them with full 10G capacity or use 4 of them sharing 10G among.
Lets see a port-group 13/1,13/3,13/5,13/7

  XYZ# sh int eth13/1 capabilities
  Ethernet13/1
  Model: N7K-M132XP-12L
  Type (SFP capable):
 10Gbase-SR
  Speed: 10000
  Duplex: full
 
Channel: yes
  Flowcontrol: rx-(off/on),tx-(off/on)
 
Rate mode: dedicated/shared

All other ports in the port-group
don't have any SFP connected. We dont have any command saying "rate-mode
dedicated" in any of the ports in the port-group.

interface Ethernet13/1
  no
switchport
  channel-group 13 mode active
  no shutdown

port-channel 13 is
L3. Does the L2 or L3 really matters when it comes to dedicate/shared mode in
nexus?

Is 13/1 getting the complete dedicated 10G wire speed even if we
havent explicitly configured rate-mode in any of the ports?

what happens if i
connect anything to 13/3 does the 10G gets divided into 2 ports automatically?
Just want to check without configuring the rate-mode in any of the ports does
10G gets allocated to a single port automatically given that the rest of the
ports in the group are disabled?

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Received on Mon Mar 04 2013 - 19:57:59 ART