Cisco Cisco Nexus 5010 Switch Guida Alla Progettazione
Design Guide
© 2010 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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Configuration of Fabric Extender Ports
The fabric extender concept applies to the Cisco Nexus 5000 Series family of products. Fabric extenders are not an
independent manageable entity; the Cisco Nexus 5000 Series manages them through in-band connectivity. Currently,
the Cisco Nexus 2148T Fabric Extender implements the fabric extender architecture.
independent manageable entity; the Cisco Nexus 5000 Series manages them through in-band connectivity. Currently,
the Cisco Nexus 2148T Fabric Extender implements the fabric extender architecture.
Each fabric extender is identified by a number in the range 100–199. You configure the number using the Cisco
Nexus 5000 Series CLI. All you need to do is configure the 10 Gigabit Ethernet ports (any 10 Gigabit Ethernet port of
the Cisco Nexus 5000 Series) that are going to be connected to a fabric extender module. You do so by specifying
the fabric extender number under the interface configuration mode, as follows:
Nexus 5000 Series CLI. All you need to do is configure the 10 Gigabit Ethernet ports (any 10 Gigabit Ethernet port of
the Cisco Nexus 5000 Series) that are going to be connected to a fabric extender module. You do so by specifying
the fabric extender number under the interface configuration mode, as follows:
nexus5k(config)#interface ethernet <a/b>
nexus5k(config-if)#switchport mode fex-fabric
nexus5k(config-if)#fex associate <fex-id>
The preceding configuration indicates that when the fabric extender module is wired to port 1/1 through a twinax or
optical cable, it assumes the identity number indicated in the fex associate statement.
optical cable, it assumes the identity number indicated in the fex associate statement.
The other fundamental configuration that is fabric-extender-specific is pinning. Pinning is covered in the chapter on
Cisco Nexus 5000 Series design, Chapter 6. The configuration commands are as follows:
Cisco Nexus 5000 Series design, Chapter 6. The configuration commands are as follows:
fex <fex-id>
pinning max-links <1-4>
description <description>
Gigabit and 10 Gigabit Interfaces Configuration
In Cisco NX-OS Software, interfaces are named as EthernetA/B regardless of whether their speed is Gigabit Ethernet
or 10 Gigabit Ethernet.
or 10 Gigabit Ethernet.
NXOS: interface Ethernet1/1
Catalyst IOS : interface GigabitEthernet1/1 or interface TenGigabitEthernet1/1
If you are configuring a 10 Gigabit Ethernet line card on the Cisco Nexus 7000 Series, you’ll have to consider that 10
Gigabit Ethernet ports can be operated in dedicated or in shared mode. This means that you need to configure the
operation mode under the Ethernet interface configuration as follows:
Gigabit Ethernet ports can be operated in dedicated or in shared mode. This means that you need to configure the
operation mode under the Ethernet interface configuration as follows:
NXOS: (config-if)#rate-mode {dedicated | shared }
Link Layer Encryption Configuration
The Cisco Nexus 7000 Series supports link layer encryption (IEEE 802.1ae), referred to as Cisco Trusted Security:
To encrypt on a link between two Cisco Nexus 7000 Series Switches, use the following configuration:
interface Etherneta/b
switchport
switchport mode trunk
switchport trunk allowed vlan <vlan list>
cts manual
sap pmk <key>
channel-group <number> mode <on | active | passive >
no shutdown