这条命令使路由器显示自己和ISDN交换机第二层的所有活动。如TEI协商信息和RR。 D信道监控 sh int bri0 查看BRI接口的D信道状态。BRI物理接口是bri0。因此sh int bri0显示的是D信道状态。 R3#sh int bri0 BRI0 is up, line PRotocol is up (spoofing) Hardware is BRI Internet address is 196.1.1.1/24 MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation PPP, loopback not set Last input 00:00:06, output 00:00:06, output hang never Last clearing of "show interface" counters 00:07:02 Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: weighted fair Output queue: 0/1000/64/0 (size/max total/threshold/drops) Conversations 0/1/16 (active/max active/max total) Reserved Conversations 0/0 (allocated/max allocated) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 13 packets input, 95 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 11 packets output, 75 bytes, 0 underruns 0 output errors, 0 collisions, 2 interface resets 0 output buffer failures, 0 output buffers swapped out 1 carrier transitions B信道监控 这里就直接举个例子
R3# sh int bri 0:1 BRI0:1 is down, line protocol is down Hardware is BRI MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation PPP, loopback not set Keepalive set (10 sec) LCP Closed, multilink Closed Closed: IPCP, CDPCP Last input 00:02:12, output 00:02:12, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue :0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 65 packets input, 1754 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 65 packets output, 1754 bytes, 0 underruns 0 output errors, 0 collisions, 11 interface resets 0 output buffer failures, 0 output buffers swapped out 3 carrier transitions
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R3# sh int bri 0:2 BRI0:2 is down, line protocol is down Hardware is BRI MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation PPP, loopback not set Keepalive set (10 sec) LCP Closed, multilink Closed Closed: IPCP, CDPCP Last input never, output never, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue :0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 11 interface resets 0 output buffer failures, 0 output buffers swapped out 0 carrier transitions 第三层调试 debug isdn q931 第3层的ISDN流量包含每个B信道的呼叫建立和呼叫挂。同时可以通过debug ppp auth 查看认证过程。
00:58:26: %ISDN-6-LAYER2UP: Layer 2 for Interface BR0, TEI 65 changed to up 00:58:26: ISDN BR0: TX -> SETUP pd = 8 callref = 0x0A 00:58:26: Bearer Capability i = 0x8890 00:58:26: Channel ID i = 0x83 00:58:26: Called Party Number i = 0x80, '38846302', Plan:Unknown, Type:Unknown 00:58:26: ISDN BR0: RX <- CALL_PROC pd = 8 callref = 0x8A 00:58:26: Channel ID i = 0x89.!!!!!!!!! 00:58:28: ISDN BR0: RX <- CONNECT pd = 8 callref = 0x8A 00:58:28: Date/Time i = 0x020C0C0216 00:58:28: Connected Number i = 0x21833338383436333032 00:58:28: ISDN BR0: TX -> CONNECT_ACK pd = 8 callref = 0x0A 00:58:28: %LINK-3-UPDOWN: Interface BRI0:1, changed state to up 00:58:28: BR0:1 PPP: Treating connection as a callout 00:58:28: BR0:1 CHAP: O CHALLENGE id 8 len 23 from "R3" 00:58:28: BR0:1 CHAP: I CHALLENGE id 6 len 23 from "R5" 00:58:28: BR0:1 CHAP: O RESPONSE id 6 len 23 from "R3" 00:58:28: BR0:1 CHAP: I SUCCESS id 6 len 4 00:58:28: BR0:1 CHAP: I RESPONSE id 8 len 23 from "R5" 00:58:28: BR0:1 CHAP: O SUCCESS id 8 len 4 00:58:28: %LINK-3-UPDOWN: Interface Virtual-access1, changed state to up!!!!!!!!!!!!!!!!!!!!!!! 00:58:28: Vi1 PPP: Treating connection as a callout 00:58:29: ISDN BR0: TX -> SETUP pd = 8 callref = 0x0B 00:58:29: Bearer Capability i = 0x8890 00:58:29: Channel ID i = 0x83 00:58:29: Called Party Number i = 0x80, '38846302', Plan:Unknown, Type:Unknown 00:58:29: ISDN BR0: RX <- CALL_PROC pd = 8 callref = 0x8B 00:58:29: Channel ID i = 0x8A 00:58:29: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0:1, changed state to up 00:58:29: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access1, changed state to up 00:58:29: ISDN BR0: RX <- CONNECT pd = 8 callref = 0x8B 00:58:29: Date/Time i = 0x020C0C0216 00:58:29: Connected Number i = 0x21833338383436333032 00:58:29: ISDN BR0: TX -> CONNECT_ACK pd = 8 callref = 0x0B 00:58:29: %LINK-3-UPDOWN: Interface BRI0:2, changed state to up 00:58:29: %ISDN-6-CONNECT: Interface BRI0:1 is now connected to 38846302 R5!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!! 00:58:29: BR0:2 PPP: Treating connection as a callout 00:58:29: BR0:2 CHAP: O CHALLENGE id 4 len 23 from "R3" 00:58:29: BR0:2 CHAP: I CHALLENGE id 4 len 23 from "R5" 00:58:29: BR0:2 CHAP: O RESPONSE id 4 len 23 from "R3" 00:58:29: BR0:2 CHAP: I SUCCESS id 4 len 4 00:58:29: BR0:2 CHAP: I RESPONSE id 4 len 23 from "R5" 00:58:29: BR0:2 CHAP: O SUCCESS id 4 len 4!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 00:58:30: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0:2, changed state to 第三层调试 2 show dialer 是第3层连接故障的另一个诊断方法。 show dialer map显示所有动态和静态的拨号映射命令。 R3#sh dialer
BRI0 - dialer type = ISDN
Dial String Successes Failures Last DNIS Last status 38846302 2 0 00:05:39 successful 0 incoming call(s) have been screened. 0 incoming call(s) rejected for callback.
BRI0:1 - dialer type = ISDN Idle timer (120 secs), Fast idle timer (20 secs) Wait for carrier (30 secs), Re-enable (15 secs) Dialer state is idle <
