Specifications

ttag-control-protocol vsi
MP-827
Cisco IOS Multiprotocol Label Switching Command Reference
January 2010
– slaves
The VSI remains continuously active (that is, the VSI does not shut down and then reactivate) if you
r
eenter the tag-control-protocol vsi command with only one or both of the following options:
– keepalive
– retry
– delay
In either case, if you reenter the ta
g-control-protocol vsi command, this causes the specified
options to take on the newly specified values; the other options retain their previous values. To
restore default values to all the options, enter the no tag-control-protocol command, followed by
the tag-control-protocol vsi command.
Examples The following example shows how to configure the VSI driver on the control interface:
Router(config)# interface atm 0/0
Router(config-if)# tag-control-protocol vsi base-vc 0 51
The following example enables extended NAK support:
Router(config-if)# tag-control-protocol vsi nak extended
The following example shows that extended NAK support is enabled, as shown by the bold output:
Router# show running-config interface atm0/0
Building configuration...
Current configuration : 113 bytes
interface ATM0/0
no ip address
shutdown
label-control-protocol vsi nak extended
no atm ilmi-keepalive
end
The show controllers vsi session command also indicates that extended NAK support is enabled, as
shown by the bold output:
Router# show controllers vsi session
Interface Session VCD VPI/VCI Switch/Slave Ids Session State
ATM0/0 0 1 0/40 0/0 UNKNOWN
ATM0/0 1 2 0/41 0/0 UNKNOWN
ATM0/0 2 3 0/42 0/0 UNKNOWN
ATM0/0 3 4 0/43 0/0 UNKNOWN
ATM0/0 4 5 0/44 0/0 UNKNOWN
ATM0/0 5 6 0/45 0/0 UNKNOWN
ATM0/0 6 7 0/46 0/0 UNKNOWN
ATM0/0 7 8 0/47 0/0 UNKNOWN
ATM0/0 8 9 0/48 0/0 UNKNOWN
ATM0/0 9 10 0/49 0/0 UNKNOWN
ATM0/0 10 11 0/50 0/0 UNKNOWN
ATM0/0 11 12 0/51 0/0 UNKNOWN
ATM0/0 12 13 0/52 0/0 UNKNOWN
ATM0/0 13 14 0/53 0/0 UNKNOWN
Extended NAK support is enabled on LSC