Symptom
ISDN switch-type configure issue for BRI leased-line
Conditions
Platform: ISR4K or G2, with BRI data module inserted.
1. Reload the router with initial configuration (without ISDN switch-type configured)
ISDN BRI0/0/3 interface
dsl 3, interface ISDN Switchtype = none
Layer 1 Status:
SHUTDOWN
2. Configured the BRI leased-line directly. The 'BRI-4-NOSWITCH' warning is seen on console.
isdn leased-line bri 0/0/3 128
3. Back to BRI interface and configure switch-type
(config)#interface bri 0/0/3
(config-if)#isdn switch-type basic-net3
The switch-type still shows 'none'.
ISDN BRI0/0/3 interface
dsl 3, interface ISDN Switchtype = none
4. Configure global ISDN switch-type, and the leased-line shows the switch-type is 'primany-net5'.
(config)#isdn switch-type basic-net3
ISDN BRI0/0/3 interface
dsl 3, interface ISDN Switchtype = primary-net5
5. Unable to change switchtype to others. Stuck on primary-net5 always.
Workaround
Configure ISDN switch-type before leased line.
