Learning by Doing: CISCO Certified Network ... - SCN Research

Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 64,Ces = 1,SAPI = 0,State =MULTIPLE_FRAME_ESTABLISHED
Spid Status:
TEI 64, ces = 1, state = 5(init)
spid1 configured, spid1 sent, spid1 valid
Endpoint ID Info: epsf = 0, usid = 70, tid = 1
TEI Not Assigned, ces = 2, state = 1(terminal down)
spid2 configured, spid2 NOT sent, spid2 NOT valid
Layer 3 Status:
0 Active Layer 3 Call(s)
Activated dsl 0 CCBs = 0
The Free Channel Mask: 0x80000003
Total Allocated ISDN CCBs = 0
kissane#
From this we see problems at layer 2 because we only have one TEI and one valid spid.
So we go through our layer 2 commands. I took out a lot of text on this one.
kissane#debug isdn q921
ISDN Q921 packets debugging is on
kissane#ping 192.168.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds:.....
Success rate is 0 percent (0/5)
kissane#
06:36:53: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to up
06:36:53: %ISDN-6-CONNECT: Interface BRI0/0:1 is now connected to
5551234
06:36:53: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to down
06:36:55: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to up
06:36:55: %ISDN-6-CONNECT: Interface BRI0/0:1 is now connected to
5551234
06:36:55: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to down
06:36:57: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to up
06:36:57: %ISDN-6-CONNECT: Interface BRI0/0:1 is now connected to
5551234
06:36:57: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to down
06:36:59: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to up
06:36:59: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to down
Here we can see us going up and down a lot again. With no real clues we turn to our
other layer 2 command:
442