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Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
OL-23826-09
Chapter 36 Configuring Inverse Muliplexing over ATM
Configuring ATM IMA over MPLS
DETAILED STEPS
Verifying IMA Configurations
To verify the IMA configurations, use the show ima interface command.
Router# show ima interface ATM0/IMA3
ATM0/IMA3 is up, ACTIVATION COMPLETE
Slot 0 Slot Unit 0 unit 3, CTRL VC -1, Vir -1, VC -1
IMA Configured BW 3022, Active BW 3022
IMA version 1.0, Frame length 64
Link Test: Disabled
Auto-Restart: Disabled
ImaGroupState: NearEnd = operational, FarEnd = operational
ImaGroupFailureStatus = noFailure
IMA Group Current Configuration:
ImaGroupMinNumTxLinks = 1 ImaGroupMinNumRxLinks = 1
ImaGroupDiffDelayMax = 200 ImaGroupNeTxClkMode = independent(itc)
ImaGroupFrameLength = 64 ImaTestProcStatus = disabled
Command Purpose
Step 1
enable
Example:
Router> enable
Enables privileged EXEC mode.
• Enter your password if prompted.
Step 2
configure terminal
Example:
Router# configure terminal
Enters the global configuration mode.
Step 3
interface ATM
slot
/IMA
group-number
Example:
Router(config)# interface ATM0/IMA0
Specifies the slot location and port of IMA interface group.
• slot—Specifies the slot location of the ATM IMA port adapter.
• group-number—Specifies the group number of the IMA group.
Step 4
VPI/VCI
l2transport
Example:
Router(config-if)# 100/12 l2transport
Specifies the VPI and VCI and configures them in layer 2 transport
mode.
Step 5
encapsulation
encapsulation-type
Example:
Router(config-if-atm-l2trans-)#
encapsulation aal5
Sets the encapsulation type to AAL5. AAL5 is the default
l2transport encapsulation for the VCC mode.
Step 6
xconnect
ip-address port-number
encapsulation mpls
Example:
Router(config-if-atm-l2trans-)#
xconnect 25.25.25.25 125 encapsulation
mpls
Binds an attachment circuit to the ATM IMA interface to create a
pseudowire.