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

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Sending 5, 100-<strong>by</strong>te ICMP Echos to 192.168.1.1, timeout is 2 seconds:.....<br />

Success rate is 0 percent (0/5)<br />

kissane#<br />

06:19:44: ISDN BR0/0: TX -> SETUP pd = 8 callref = 0x35<br />

06:19:44: Bearer Capability i = 0x8890<br />

06:19:44: Channel ID i = 0x83<br />

06:19:44: Keypad Facility i = '5551234'<br />

06:19:188978601984: ISDN BR0/0: RX DISCONNECT pd = 8 callref = 0x35<br />

06:19:58: Cause i = 0x8090 - Normal call clearing<br />

06:19:251270015772: ISDN BR0/0: RX RELEASE_COMP pd = 8 callref = 0x35<br />

06:19:59: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0/0:1,<br />

changed state to down<br />

kissane#<br />

So we see our line come up and go back down right away. Since we have “used” all of<br />

our layer 3 commands we need to go back and use some layer 2 commands.<br />

kissane#debug isdn q921<br />

ISDN Q921 packets debugging is on<br />

kissane#ping 192.168.1.1<br />

Type escape sequence to abort.<br />

Sending 5, 100-<strong>by</strong>te ICMP Echos to 192.168.1.1, timeout is 2 seconds:.....<br />

Success rate is 0 percent (0/5)<br />

kissane#<br />

06:23:81604378624: ISDN BR0/0: RX RRf sapi = 0 tei = 64 nr = 10<br />

06:23:19: ISDN BR0/0: TX -> INFOc sapi = 0 tei = 64 ns = 13 nr = 10 i = 0x0<br />

8013605040288901801832C0735353531323334<br />

06:23:81604419584: ISDN BR0/0: RX

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