Hi, All!
I faced a weird trouble with my HQ T1 connection doing 4.4 task.
T1 link looks be flapping: every 5 minutes it came up 10 seconds and then falls
again, with RAI errors on PSTN router console, and this status on HQ side:
HQ-RTR#sh isdn status
Global ISDN Switchtype = primary-ni
ISDN Serial0/0/0:23 interface
dsl 0, interface ISDN Switchtype = primary-ni
Layer 1 Status:
DEACTIVATED
Layer 2 Status:
TEI = 0, Ces = 1, SAPI = 0, State = TEI_ASSIGNED
Layer 3 Status:
0 Active Layer 3 Call(s)
Active dsl 0 CCBs = 0
The Free Channel Mask: 0x00000000
Number of L2 Discards = 0, L2 Session ID = 0
Total Allocated ISDN CCBs = 0
HQ-RTR#sh isdn service
PRI Channel Statistics:
ISDN Se0/0/0:23, Channel [1-24]
Configured Isdn Interface (dsl) 0
Channel State (0=Idle 1=Proposed 2=Busy 3=Reserved 4=Restart 5=Maint_Pend)
Channel : 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4
State : 0 0 0 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3
Service State (0=Inservice 1=Maint 2=Outofservice 8=MaintPend 9=OOSPend)
Channel : 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4
State : 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
PSTN router status:
ISDN Serial0/3/0:23 interface
******* Network side configuration *******
dsl 1, interface ISDN Switchtype = primary-ni
Layer 1 Status:
DEACTIVATED
Layer 2 Status:
TEI = 0, Ces = 1, SAPI = 0, State = TEI_ASSIGNED
Layer 3 Status:
0 Active Layer 3 Call(s)
Active dsl 1 CCBs = 0
The Free Channel Mask: 0x00000000
Number of L2 Discards = 0, L2 Session ID = 1
I tried to recreate config, shut/no shut modules, reload routers, and dance
with tambourine, but failed.
Then I just googled a bit, and found that L1 Deactivated status is generally
hardware issue.
I asked support guy to check and recheck all devices and he replaced T1 cables,
tried to reseat modules, and done his best, but with no luck again.
During this practices I lost data connection between BR2 and PSTN, although I
didn't touch any WAN ports configuration. :)
Situation didn't changed even after loading FINAL lab config to devices just to
check.
Could this be a hardware issue? I worked on pod 27, if it matters.
Thanks for the help.
--
Best regards,
Ilya Rubinchik
Chief UC Engineer
Mars Solutions Ltd.
_______________________________________________
For more information regarding industry leading CCIE Lab training, please visit
www.ipexpert.com
