Network technologies and trends

Aug 16 2011   7:55AM GMT

Difference between shared mode and dedicated mode operation in Nexus 7000 Series Switches – Series 2



Posted by: Yasir Irfan
Tags:
10 Giga Ethernet module
10-Gigabit Ethernet module
80 GB fabric connection
a Cisco Nexus 7000 Series 8 port
Cisco Nexus 7000 Series 32-port
dedicated mode
Difference between shared mode and dedicated mode
N7K-M108X2-12L
N7K-M132XP-12
Nexus 7000 Series line card
Nexus 7000 Series Switches
over subscription
shared mode

In my previous post we discovered how Nexus 7000 Series line card works in shared mode. The other mode of operation is known as dedicated mode. Unlike in shared mode where four interfaces share the 10 Giga Bandwidth, the dedicated mode offers 10 GB bandwidth to the first interface of the group while all the three remaining will be disabled.

In previous post we learned how the of Cisco Nexus 7000 Series 32-port, 10-Gigabit Ethernet module (N7K-M132XP-12) works in shared mode by. In the Cisco Nexus 7000 Series 32-port, 10-Gigabit Ethernet module (N7K-M132XP-12) each group can be configured individually as either dedicated or shared mode. Always a dedicated port is easy to identify in any Nexus line card as they are marked yellow.

The main disadvantage of configuring a Cisco Nexus 7000 Series 32-port, 10-Gigabit Ethernet module is that you are losing 24 ports functionality as they are totally disabled, and the Cisco Nexus 7000 Series 32-port, 10-Gigabit Ethernet module works as 8 port module.  Rather I prefer to use a Cisco Nexus 7000 Series 8 port, 10 Giga Ethernet module (N7K-M108X2-12L).

2  Comments on this Post

 
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  • Routerrowdy
    Can we have 1st group(1,3,5,7) as dedicated and rest of ports in shared mode? Also, please give an show output example where it show that the port is configured as dedicated/shared mode.
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  • arendkolk
    Interesting explanation. I follow the INE Data Center training and your blog ads insight into the Nexus technology.
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