11-10-2020 01:40 AM - edited 11-10-2020 01:55 AM
Dear all,
The command "show ip int brief" shows the all the interfaces Serial0/x/y:16 - 0/x/y:30 as "administratively down" except from the very first PRI Interface Serial0/1/0:16 - 0/1/0:30.
router#sh ip int brief
Interface IP-Address OK? Method Status Protocol
…
Serial0/1/1:0 unassigned YES unset up down
Serial0/1/1:1 unassigned YES unset up down
Serial0/1/1:2 unassigned YES unset up down
Serial0/1/1:3 unassigned YES unset up down
Serial0/1/1:4 unassigned YES unset up down
Serial0/1/1:5 unassigned YES unset down down
Serial0/1/1:6 unassigned YES unset down down
Serial0/1/1:7 unassigned YES unset down down
Serial0/1/1:8 unassigned YES unset down down
Serial0/1/1:9 unassigned YES unset down down
Serial0/1/1:10 unassigned YES unset down down
Serial0/1/1:11 unassigned YES unset down down
Serial0/1/1:12 unassigned YES unset down down
Serial0/1/1:13 unassigned YES unset down down
Serial0/1/1:14 unassigned YES unset down down
Serial0/1/1:15 unassigned YES unset up up
Serial0/1/1:16 unassigned YES unset administratively down down
Serial0/1/1:17 unassigned YES unset administratively down down
Serial0/1/1:18 unassigned YES unset administratively down down
…
router#
The config for the serial interfaces are identical except from the clocking (see attached).
Does someone has a clue, why the interfaces are shown as "adminstratively down" and how to correct it?
Thanks
Martin
11-10-2020 02:06 AM
administratively down mean, you need make configuraiton to no shutdown to make it up.
example :
config t
!
interface serial0/1/1:16
no shutdown
do other interface and let us know outcome.
11-10-2020 02:18 AM
Sorry, but only the signaling channel is configurable (for PRI E1 this is x/y/z:15). See the output below from my try:
router#conf t
router(config)#int Serial0/1/1:16
%Cannot access B-channel interfaces
router(config)#exit
router#
11-10-2020 02:21 AM - edited 11-10-2020 02:22 AM
Sorry my bad, i was in impression it was sub interface of serial interface,
Can you post below information :
show run
show controller e1
show inter s0/1/1:16 (other down interface)
suggested guide for troubleshoot :
https://www.cisco.com/c/en/us/support/docs/wan/t1-e1-t3-e3/14149-chapter15.html
11-10-2020 02:33 AM
11-23-2020 01:31 AM
Does no one else have the same issue?
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