Reset Search
 

 

Article

How to configure Breakout ports

« Go Back

Information

 
TitleHow to configure Breakout ports
Symptoms
VDX 6740 with VDX 6740 does not recognize 40Gbps QSFP breakout cable when installed.
Environment
  • Extreme VDX 6740
  • Extreme VDX 6940
Cause
When installing a 40Gbps QSFP the VDX will not automatically recognize the breakout cable. You must go through a series of steps in order for the VDX to see the breakout cable.


 
Resolution
===============================================================
Versions prior to 6.0.0
===============================================================


To configure breakout mode on a standalone switch (6740/6740T), complete the following procedure.

1. Login into the switch and type config terminal
 
switch# config terminal 
Entering configuration mode terminal

2. Type interface fortygigabitethernet <x/y/z>
 
switch(config)# interface FortyGigabitEthernet 1/0/49

3. Type shut then  exit
 
switch(conf-if-fo-1/0/49)# shut
switch(conf-if-fo-1/0/49)# exit

4. Type hardware
 
switch(config)# hardware

5. Type connector <x/y/z>

switch(config-hardware)# connector 1/0/49

%Warning: Sfp Breakout is a disruptive command.
6. Type sfp breakout

switch(config-connector-1/0/49)# sfp breakout

7. Save the running-config to the startup-config and then proceed to reload the  specific rbridge or power-cycle the linecard on the chassis system for the changes to take effect.

switch(config-connector-1/0/49)# do copy running-config startup-config (This applies to standalone and fabric cluster modes.)This operation will modify your startup configuration. Do you want to continue? [y/n]:y
switch(config-connector-1/0/49)# do reload
Warning: Unsaved configuration will be lost. Please run `copy running-config startupconfig`
to save the current configuration if not done already.
Are you sure you want to reload the switch? [y/n]:y
The system is going down for reload NOW !!

8. After the VDX reloads, verify the port/s is now setup as four 10G ports.

9. Type show ip int br

switch# show ip int br
Interface IP-Address Vrf Status Protocol

====================================================================

TenGigabitEthernet 1/0/49:1 unassigned default-vrfup down
TenGigabitEthernet 1/0/49:2 unassigned default-vrf updown
TenGigabitEthernet 1/0/49:3 unassigned default-vrf up down
TenGigabitEthernet 1/0/49:4 unassigned default-vrf up down
 
 

===============================================================
Versions 6.0.0 and later
===============================================================
 
1. Login into the switch and type config terminal
 
switch# config terminal 
Entering configuration mode terminal
 

2. Type hardware
 
switch(config)# hardware

device# configure terminal
device(config)# hardware

3. Type connector <x/y/z>
 

device(config-hardware)# connector 2/0/1

4. Type sfp breakout

device(config-connector-2/0/1)# sfp breakout
 
5. Save the running-config to the startup-config
 
 
device(config-connector-2/0/1)# do copy running-config startup-config

6. Verify the port is now setup as four 10G ports.

7. Type show ip int br

switch# show ip int br
Interface IP-Address Vrf Status Protocol

====================================================================

TenGigabitEthernet 1/0/49:1 unassigned default-vrfup down
TenGigabitEthernet 1/0/49:2 unassigned default-vrf updown
TenGigabitEthernet 1/0/49:3 unassigned default-vrf up down
TenGigabitEthernet 1/0/49:4 unassigned default-vrf up down
Additional notes
Versions 6.0.0 and earlier require reboot Whereas versions 6.0.0 and later do not

Feedback

 

Was this article helpful?


   

Feedback

Please tell us how we can make this article more useful.

Characters Remaining: 255