Cisco Asr 1000 Series Aggregation Services Routers Sip And Spa Software Configuration Guide, Cisco Ios - Cisco ASR 1000 Series Software Configuration Manual

Configuring the ATM SPAs
• Preparing for future testing or troubleshooting.
• Changing the interface configuration in a way that would affect the traffic flow, such as changing the
• Changing the interface cables.
• Removing a SPA that you do not expect to replace.
• Replacing an interface card with a different model of card.
Shutting down the interface in these situations prevents anomalies from occurring when you reinstall the new
card or cables. It also reduces the number of error messages and system messages that might otherwise appear.
Note If you plan to replace an existing ATM port adapter with an ATM SPA in the Cisco ASR 1000 Series
Router and want to use the same configuration, save the slot's configuration before physically replacing
the hardware. This is because all slot configuration is lost when you replace one card type with another
card type, even if the two cards are functionally equivalent. You can then re-enter the previous configuration
after you have inserted the ATM SPA.
To shut down an interface, perform the following procedure beginning in global configuration mode:
SUMMARY STEPS
1. Router(config)# interface atm slot/subslot/port
2. Router(config-if)# shutdown
3. Router(config-if)# end
DETAILED STEPS
Command or Action
Step 1
Router(config)# interface atm slot/subslot/port
Step 2 Router(config-if)# shutdown
Step 3 Router(config-if)# end
What to Do Next
When you shut down an interface, the show interface command indicates that the interface is
Tip
administratively down until the SPA is physically removed from the chassis or until the SPA is re-enabled.
The following shows a typical example of shutting down an ATM SPA interface:
Router> enable
OL-14127-17
encapsulation.
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide, Cisco IOS XE
Shutting Down and Restarting an Interface on a SPA
Purpose
Enters interface configuration mode for the indicated port on
the specified ATM SPA.
Shuts down the interface.
Exits interface configuration mode and returns to privileged
EXEC mode.
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