Information about Configuring Auto-MDIX
Information about Configuring Auto-MDIX
Auto-MDIX on an Interface
When automatic medium-dependent interface crossover (auto-MDIX) is enabled on an interface, the interface
automatically detects the required cable connection type (straight through or crossover) and configures the
connection appropriately. When connecting switches without the auto-MDIX feature, you must use
straight-through cables to connect to devices such as servers, workstations, or routers and crossover cables
to connect to other switches or repeaters. With auto-MDIX enabled, you can use either type of cable to connect
to other devices, and the interface automatically corrects for any incorrect cabling. For more information about
cabling requirements, see the hardware installation guide.
This table shows the link states that result from auto-MDIX settings and correct and incorrect cabling.
Table 7: Link Conditions and Auto-MDIX Settings
Local Side Auto-MDIX
On
On
Off
Off
How to Configure Auto-MDIX
Configuring Auto-MDIX on an Interface
SUMMARY STEPS
1. configure terminal
2. interface interface-id
3. speed auto
4. duplex auto
5. mdix auto
6. end
Catalyst 2960-XR Switch Interface and Hardware Component Configuration Guide, Cisco IOS Release 15.0(2)EX1
44
Remote Side Auto-MDIX
With Correct Cabling
On
Link up
Off
Link up
On
Link up
Off
Link up
Configuring Auto-MDIX
With Incorrect Cabling
Link up
Link up
Link up
Link down
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