Management Model - Cisco Nexus 6000 Series Configuration Manual

Management Model

The Cisco Nexus 2232TM Fabric Extender has 8 10-Gigabit Ethernet fabric interfaces and 32 10G-BASE-T
(10-Gigabit) Ethernet host interfaces. With this system, you can configure a 4 to 1 oversubscription (4 host
interfaces for one fabric interface) or higher.
The Cisco Nexus 2224TP Fabric Extender has 2 10-Gigabit Ethernet fabric interfaces and 24 100/1000BASE-T
(100-Mb/1-Gigabit) Ethernet host interfaces. With this system, you can configure a 1.2 to 1 oversubscription
(24 host interfaces for two fabric interfaces) or higher.
The Cisco Nexus B22 Fabric Extender for HP (NB22HP) has 8 10-Gigabit Ethernet fabric interfaces and 16
1G/10-Gigabit Ethernet host interfaces. All host interfaces use all of the available fabric interfaces. Static
pinning and port-channel mode are supported. When all host interfaces are sending traffic to all fabric interfaces,
the maximum oversubscription ratio for the Cisco Nexus B22 Fabric Extender for HP (N2K-B22HP-P) is
2:1.
The Cisco Nexus B22 Fabric Extender for Fujitsu (NB22FTS) has 8 10-Gigabit Ethernet fabric interfaces and
16 10-Gigabit Ethernet host interfaces. All host interfaces use all of the available fabric interfaces. Static
pinning and port-channel mode are supported. When all host interfaces are sending traffic to all fabric interfaces,
the maximum oversubscription ratio for the Cisco Nexus B22 Fabric Extender for Fujitsu (N2K-B22FTS-P)
is 2:1.
The Cisco Nexus B22 Fabric Extender for Dell (NB22DELL) has 8 10-Gigabit Ethernet fabric interfaces and
16 1G/10-Gigabit Ethernet host interfaces. All host interfaces use all of the available fabric interfaces. Static
pinning and port-channel mode are supported. When all host interfaces are sending traffic to all fabric interfaces,
the maximum oversubscription ratio for the Cisco Nexus B22 Fabric Extender for Dell (N2K-B22DELL-P)
is 2:1.
The Cisco Nexus B22 Fabric Extender for IBM (NB22IBM) has 8 10-Gigabit Ethernet fabric interfaces and
14 1G/10-Gigabit Ethernet host interfaces. All host interfaces use all of the available fabric interfaces. Static
pinning and port-channel mode are supported. When all host interfaces are sending traffic to all fabric interfaces,
the maximum oversubscription ratio for the Cisco Nexus B22 Fabric Extender for IBM (N2K-B22IBM-P) is
2:1.

Management Model

The Cisco Nexus 2000 Series Fabric Extender is managed by its parent switch over the fabric interfaces
through a zero-touch configuration model. The switch discovers the Fabric Extender by detecting the fabric
interfaces of the Fabric Extender.
After discovery, if the Fabric Extender has been correctly associated with the parent switch, the following
operations are performed:
1 The switch checks the software image compatibility and upgrades the Fabric Extender if necessary.
2 The switch and Fabric Extender establish in-band IP connectivity with each other.
The switch assigns an IP address in the range of loopback addresses (127.15.1.0/24) to the Fabric Extender
to avoid conflicts with IP addresses that might be in use on the network.
3 The switch pushes the configuration data to the Fabric Extender. The Fabric Extender does not store any
configuration locally.
4 The Fabric Extender updates the switch with its operational status. All Fabric Extender information is
displayed using the switch commands for monitoring and troubleshooting.
Cisco Nexus 6000 Series NX-OS Layer 2 Switching Configuration Guide, Release 7.x
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Configuring the Fabric Extender