يقدم هذا المستند نموذجا لتكوين النسخ الاحتياطي ل ISDN، ويزود معلومات أستكشاف الأخطاء وإصلاحها الأساسية لهذا النوع من التكوين.
لمزيد من المعلومات حول عمليات التنفيذ الأكثر شيوعا للنسخ الاحتياطي ل ISDN، والمقارنات بين هذه العمليات، ارجع إلى المستند التالي: تقييم واجهات النسخ الاحتياطي، والمسارات الثابتة العائمة، ومراقبة المتصل للنسخ الاحتياطي ل DDR.
لا توجد متطلبات أساسية خاصة لهذا المستند.
تستند المعلومات الواردة في هذا المستند إلى إصدارات البرامج والمكونات المادية أدناه.
موجهات Cisco 2500 (المعدات الطرفية لبيانات ترحيل الإطارات [DTEs] ) التي تشغل الإصدار 12.2(3) من البرنامج Cisco IOS® و 12.2(5).
موجه Cisco 4500 واحد يعمل كمحول ترحيل إطارات.
تم إنشاء المعلومات المُقدمة في هذا المستند من الأجهزة الموجودة في بيئة معملية خاصة. بدأت جميع الأجهزة المُستخدمة في هذا المستند بتكوين ممسوح (افتراضي). إذا كنت تعمل في شبكة مباشرة، فتأكد من فهمك للتأثير المحتمل لأي أمر قبل استخدامه.
للحصول على مزيد من المعلومات حول اصطلاحات المستندات، راجع اصطلاحات تلميحات Cisco التقنية.
في هذا القسم، تُقدّم لك معلومات تكوين الميزات الموضحة في هذا المستند.
ملاحظة: للعثور على معلومات إضافية حول الأوامر المستخدمة في هذا المستند، أستخدم أداة بحث الأوامر (للعملاء المسجلين فقط).
يستخدم هذا المستند إعداد الشبكة الموضح في الرسم التخطيطي أدناه.
يستخدم هذا المستند التكوينات الموضحة أدناه.
كريمسون (موجه Cisco 2500) |
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krimson#show running-config Building configuration... ! version 12.2 service timestamps debug datetime msec service timestamps log datetime msec ! hostname krimson ! ! username kevin password 0 <password> ! isdn switch-type basic-net3 ! ! interface Loopback0 ip address 10.7.7.1 255.255.255.0 ip ospf network point-to-point ! interface Ethernet0 ip address 10.200.16.30 255.255.255.0 ! interface Serial1 bandwidth 64 no ip address encapsulation frame-relay no ip route-cache no ip mroute-cache ! interface Serial1.1 point-to-point backup interface Dialer0 ip address 10.5.5.2 255.255.255.0 no ip route-cache frame-relay interface-dlci 20 ! interface BRI0 description Testanschluss ISDN(intern), Nr. 4420038 no ip address encapsulation ppp no ip route-cache no ip mroute-cache load-interval 30 no keepalive dialer pool-member 1 isdn switch-type basic-net3 no fair-queue no cdp enable ppp authentication chap ! interface Dialer0 ip address 10.9.9.1 255.255.255.0 encapsulation ppp no ip route-cache no ip mroute-cache dialer pool 1 dialer remote-name kevin dialer string 6120 dialer-group 1 no cdp enable ppp authentication chap ! router ospf 10 log-adjacency-changes network 10.5.5.0 0.0.0.255 area 0 network 10.7.7.0 0.0.0.255 area 0 network 10.9.9.0 0.0.0.255 area 0 ! ip default-gateway 10.200.16.1 no ip classless no ip http server ! access-list 105 permit ip any host 10.7.7.1 access-list 105 permit ip any host 10.8.8.1 access-list 105 permit ip any any dialer-list 1 protocol ip permit ! line con 0 exec-timeout 0 0 privilege level 15 line aux 0 transport input all line vty 0 4 exec-timeout 0 0 password <password> login ! end |
كيفن (الموجه 2500 من Cisco) |
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kevin#show running-config Building configuration... version 12.2 service timestamps debug datetime msec service timestamps log datetime msec ! hostname kevin ! ! username krimson password 0 <password> ! isdn switch-type basic-net3 ! ! interface Loopback0 ip address 10.8.8.1 255.255.255.0 ip ospf network point-to-point ! interface Loopback1 ip address 172.19.0.1 255.255.255.255 ! interface Ethernet0 ip address 10.200.16.26 255.255.255.0 ! interface Serial0 no ip address encapsulation frame-relay ! interface Serial0.1 point-to-point ip address 10.5.5.1 255.255.255.0 no cdp enable frame-relay interface-dlci 20 ! interface BRI0 no ip address encapsulation ppp dialer pool-member 1 isdn switch-type basic-net3 no cdp enable ppp authentication chap ! interface Dialer0 ip address 10.9.9.2 255.255.255.0 encapsulation ppp dialer pool 1 dialer remote-name krimson dialer-group 1 no cdp enable ppp authentication chap ! router ospf 10 log-adjacency-changes network 10.5.5.0 0.0.0.255 area 0 network 10.8.8.0 0.0.0.255 area 0 network 10.9.9.0 0.0.0.255 area 0 ! ip default-gateway 10.200.16.1 ip classless ! dialer-list 1 protocol ip permit no cdp run ! line con 0 exec-timeout 0 0 line aux 0 modem InOut line vty 0 4 exec-timeout 0 0 password <password> login ! ntp clock-period 17180102 ntp server 10.200.20.134 end |
يوفر هذا القسم معلومات يمكنك إستخدامها للتأكد من أن التكوين يعمل بشكل صحيح.
أستخدم الأوامر التالية للتحقق من التكوين الخاص بك:
يتم دعم بعض أوامر العرض بواسطة أداة مترجم الإخراج، والتي تتيح لك عرض تحليل إخراج أمر العرض.
show interfaces serial- يعرض معلومات حول معرف اتصال إرتباط بيانات البث المتعدد (DLCI)، و DLCIs المستخدم على الواجهة، و DLCI المستخدم لواجهة الإدارة المحلية (LMI).
show interface dialer- يعرض معلومات حول واجهة المتصل.
show ip route- يعرض إدخالات جدول توجيه IP.
krimson#show interface serial 1.1 ! --- The initial state before the simulated Frame Relay network failure. ! --- The primary link is up and functional. Serial1.1 is up, line protocol is up Hardware is HD64570 Internet address is 10.5.5.2/24 Backup interface Dialer0, failure delay 0 sec, secondary disable delay 0 sec MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation FRAME-RELAY krimson#show int dialer 0 ! --- Initial state. The backup interface is in standby mode and inactive. Dialer0 is standby mode (spoofing), line protocol is down (spoofing) Hardware is Unknown Internet address is 10.9.9.1/24 MTU 1500 bytes, BW 56 Kbit, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation PPP, loopback not set DTR is pulsed for 1 seconds on reset Last input 1w6d, output never, output hang never Last clearing of "show interface" counters 6w4d 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) Available Bandwidth 42 kilobits/sec 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 596 packets input, 48924 bytes 600 packets output, 49280 bytes krimson#show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area * - candidate default, U - per-user static route, o - ODR P - periodic downloaded static route Gateway of last resort is 10.200.16.1 to network 0.0.0.0 192.168.64.0/30 is subnetted, 1 subnets C 192.168.64.0 is directly connected, Dialer4 10.0.0.0/24 is subnetted, 6 subnets O 10.9.9.0 [110/3347] via 10.5.5.1, 00:03:34, Serial1.1 O 10.8.8.0 [110/1563] via 10.5.5.1, 00:03:34, Serial1.1 ! --- The route to the tested destination network points to the ! --- still-active primary link. C 10.5.5.0 is directly connected, Serial1.1 C 10.7.7.0 is directly connected, Loopback0 C 10.9.8.0 is directly connected, Dialer1 C 10.200.16.0 is directly connected, Ethernet0 S* 0.0.0.0/0 [1/0] via 10.200.16.1
هنا، يمكننا أن نرى أن واجهة ترحيل الإطارات في طريقها للأسفل.
krimson# *Apr 16 23:56:47.840: %LINK-3-UPDOWN: Interface Serial1, changed state to down *Apr 16 23:56:47.848: OSPF: Interface Serial1.1 going Down ! --- Here we have simulated a failure within the Frame Relay network. ! --- We can see what was conducted to the Frame Relay DTE router, ! --- and the subinterface going down. *Apr 16 23:56:47.852: %OSPF-5-ADJCHG: Process 10, Nbr 172.19.0.1 on Serial1.1 from FULL to DOWN, Neighbor Down: Interface down or detached *Apr 16 23:56:48.736: BACKUP(Serial1.1): event = primary went down *Apr 16 23:56:48.740: BACKUP(Serial1.1): changed state to "waiting to backup" *Apr 16 23:56:48.744: BACKUP(Serial1.1): event = timer expired *Apr 16 23:56:48.748: Di0 DDR is shutdown, could not clear interface. *Apr 16 23:56:48.752: BACKUP(Serial1.1): secondary interface (Dialer0) made active ! --- The configured backup interface is active. *Apr 16 23:56:48.752: BACKUP(Serial1.1): changed state to "backup mode" *Apr 16 23:56:48.756: OSPF: Interface Dialer0 going Up *Apr 16 23:56:48.760: BR0 DDR: rotor dialout [priority] *Apr 16 23:56:48.764: BR0 DDR: Dialing cause ip (s=10.9.9.1, d=224.0.0.5) ! --- OSPF packets trigger the call. *Apr 16 23:56:48.768: BR0 DDR: Attempting to dial 6120 *Apr 16 23:56:48.784: ISDN BR0: TX -> SETUP pd = 8 callref = 0x3E *Apr 16 23:56:48.792: Bearer Capability i = 0x8890 *Apr 16 23:56:48.796: Channel ID i = 0x83 *Apr 16 23:56:48.804: Called Party Number i = 0x80, '6120', Plan:Unknown, Type:Unknown *Apr 16 23:56:48.844: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1, changed state to down *Apr 16 23:56:48.884: ISDN BR0: RX <- CALL_PROC pd = 8 callref = 0xBE *Apr 16 23:56:48.892: Channel ID i = 0x89 *Apr 16 23:56:49.144: ISDN BR0: RX <- CONNECT pd = 8 callref = 0xBE *Apr 16 23:56:49.160: %LINK-3-UPDOWN: Interface BRI0:1, changed state to up *Apr 16 23:56:49.168: %DIALER-6-BIND: Interface BR0:1 bound to profile Di0 *Apr 16 23:56:49.176: BR0:1 PPP: Treating connection as a callout *Apr 16 23:56:49.180: BR0:1 PPP: Phase is ESTABLISHING, Active Open [0 sess, 0 load] *Apr 16 23:56:49.184: BR0:1 LCP: O CONFREQ [Closed] id 49 len 15 *Apr 16 23:56:49.188: BR0:1 LCP: AuthProto CHAP (0x0305C22305) *Apr 16 23:56:49.188: BR0:1 LCP: MagicNumber 0xF2143EDB (0x0506F2143EDB) *Apr 16 23:56:49.196: ISDN BR0: TX -> CONNECT_ACK pd = 8 callref = 0x3E *Apr 16 23:56:49.224: BR0:1 LCP: I CONFREQ [REQsent] id 83 len 15 *Apr 16 23:56:49.228: BR0:1 LCP: AuthProto CHAP (0x0305C22305) *Apr 16 23:56:49.232: BR0:1 LCP: MagicNumber 0x9ADACD69 (0x05069ADACD69) *Apr 16 23:56:49.236: BR0:1 LCP: O CONFACK [REQsent] id 83 len 15 *Apr 16 23:56:49.236: BR0:1 LCP: AuthProto CHAP (0x0305C22305) *Apr 16 23:56:49.240: BR0:1 LCP: MagicNumber 0x9ADACD69 (0x05069ADACD69) *Apr 16 23:56:49.244: BR0:1 LCP: I CONFACK [ACKsent] id 49 len 15 *Apr 16 23:56:49.248: BR0:1 LCP: AuthProto CHAP (0x0305C22305) *Apr 16 23:56:49.252: BR0:1 LCP: MagicNumber 0xF2143EDB (0x0506F2143EDB) *Apr 16 23:56:49.252: BR0:1 LCP: State is Open *Apr 16 23:56:49.256: BR0:1 PPP: Phase is AUTHENTICATING, by both [0 sess, 0 load] *Apr 16 23:56:49.260: BR0:1 CHAP: O CHALLENGE id 49 len 28 from "krimson" *Apr 16 23:56:49.276: BR0:1 CHAP: I CHALLENGE id 51 len 26 from "kevin" *Apr 16 23:56:49.284: BR0:1 CHAP: O RESPONSE id 51 len 28 from "krimson" *Apr 16 23:56:49.332: BR0:1 CHAP: I SUCCESS id 51 len 4 *Apr 16 23:56:49.344: BR0:1 CHAP: I RESPONSE id 49 len 26 from "kevin" *Apr 16 23:56:49.352: BR0:1 CHAP: O SUCCESS id 49 len 4 *Apr 16 23:56:49.356: BR0:1 PPP: Phase is UP [0 sess, 0 load] *Apr 16 23:56:49.360: BR0:1 IPCP: O CONFREQ [Not negotiated] id 41 len 10 *Apr 16 23:56:49.364: BR0:1 IPCP: Address 10.9.9.1 (0x03060A090901) *Apr 16 23:56:49.376: BR0:1 IPCP: I CONFREQ [REQsent] id 29 len 10 *Apr 16 23:56:49.380: BR0:1 IPCP: Address 10.9.9.2 (0x03060A090902) *Apr 16 23:56:49.384: BR0:1 IPCP: O CONFACK [REQsent] id 29 len 10 *Apr 16 23:56:49.388: BR0:1 IPCP: Address 10.9.9.2 (0x03060A090902) *Apr 16 23:56:49.396: BR0:1 IPCP: I CONFACK [ACKsent] id 41 len 10 *Apr 16 23:56:49.400: BR0:1 IPCP: Address 10.9.9.1 (0x03060A090901) *Apr 16 23:56:49.400: BR0:1 IPCP: State is Open *Apr 16 23:56:49.408: BR0:1 DDR: dialer protocol up *Apr 16 23:56:49.416: Di0 IPCP: Install route to 10.9.9.2 *Apr 16 23:56:49.960: OSPF: Rcv hello from 172.19.0.1 area 0 from Dialer0 10.9.9.2 *Apr 16 23:56:49.964: OSPF: End of hello processing *Apr 16 23:56:50.356: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0:1, changed state to up *Apr 16 23:56:50.748: %LINK-3-UPDOWN: Interface Dialer0, changed state to up *Apr 16 23:56:50.752: Di0 LCP: Not allowed on a Dialer Profile *Apr 16 23:56:50.752: BACKUP(Dialer0): event = primary came up *Apr 16 23:56:55.176: %ISDN-6-CONNECT: Interface BRI0:1 is now connected to 6120 kevin *Apr 16 23:56:58.804: OSPF: Rcv DBD from 172.19.0.1 on Dialer0 seq 0x988 opt 0x42 flag 0x7 len 32 mtu 1500 state INIT *Apr 16 23:56:58.808: OSPF: 2 Way Communication to 172.19.0.1 on Dialer0, state 2WAY krimson#show interface serial 1.1 Serial1.1 is down, line protocol is down ! --- The primary link is down. Hardware is HD64570 Internet address is 10.5.5.2/24 Backup interface Dialer0, failure delay 0 sec, secondary disable delay 0 sec MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation FRAME-RELAY krimson#show interface dialer 0 Dialer0 is up, line protocol is up (spoofing) ! --- The backup interface is active and bearing traffic. Hardware is Unknown Internet address is 10.9.9.1/24 MTU 1500 bytes, BW 56 Kbit, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation PPP, loopback not set DTR is pulsed for 1 seconds on reset Interface is bound to BR0:1 Last input 1w6d, output never, output hang never Last clearing of "show interface" counters 6w4d 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) Available Bandwidth 42 kilobits/sec 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 614 packets input, 50240 bytes 618 packets output, 50584 bytes Bound to: BRI0:1 is up, line protocol is up 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 not set DTR is pulsed for 1 seconds on reset Time to interface disconnect: idle 00:01:57 Interface is bound to Di0 (Encapsulation PPP) LCP Open Open: IPCP Last input 00:00:01, output 00:00:02, output hang never Last clearing of "show interface" counters never Queueing strategy: fifo Output queue 0/40, 0 drops; input queue 0/75, 0 drops 30 second input rate 0 bits/sec, 0 packets/sec 30 second output rate 0 bits/sec, 0 packets/sec 3910 packets input, 394443 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 0 giants, 0 throttles 29 input errors, 18 CRC, 0 frame, 0 overrun, 0 ignored, 11 abort 3613 packets output, 222417 bytes, 0 underruns 0 output errors, 0 collisions, 27 interface resets 0 output buffer failures, 0 output buffers swapped out 607 carrier transitions krimson#show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area * - candidate default, U - per-user static route, o - ODR P - periodic downloaded static route Gateway of last resort is 10.200.16.1 to network 0.0.0.0 192.168.64.0/30 is subnetted, 1 subnets C 192.168.64.0 is directly connected, Dialer4 10.0.0.0/8 is variably subnetted, 6 subnets, 2 masks C 10.9.9.2/32 is directly connected, Dialer0 O 10.8.8.0/24 [110/1786] via 10.9.9.2, 00:00:53, Dialer0 ! --- The route entry to the destination network is now pointing to ! --- the backup interface as a next hop. C 10.9.9.0/24 is directly connected, Dialer0 C 10.7.7.0/24 is directly connected, Loopback0 C 10.9.8.0/24 is directly connected, Dialer1 C 10.200.16.0/24 is directly connected, Ethernet0 S* 0.0.0.0/0 [1/0] via 10.200.16.1 krimson#ping 10.8.8.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.8.8.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 36/36/40 ms
هنا يمكننا أن نرى النظام يرجع إلى حالته الأولية بمجرد مسح الفشل في شبكة ترحيل الإطارات:
krimson#show interface serial 1.1 Serial1.1 is up, line protocol is up Hardware is HD64570 Internet address is 10.5.5.2/24 Backup interface Dialer0, failure delay 0 sec, secondary disable delay 0 sec MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation FRAME-RELAY krimson#show interface dialer 0 Dialer0 is standby mode (spoofing), line protocol is down (spoofing) Hardware is Unknown Internet address is 10.9.9.1/24 MTU 1500 bytes, BW 56 Kbit, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation PPP, loopback not set DTR is pulsed for 1 seconds on reset Last input 1w6d, output never, output hang never Last clearing of "show interface" counters 6w5d 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) Available Bandwidth 42 kilobits/sec 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 665 packets input, 54008 bytes 671 packets output, 54548 bytes krimson#show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area * - candidate default, U - per-user static route, o - ODR P - periodic downloaded static route Gateway of last resort is 10.200.16.1 to network 0.0.0.0 192.168.64.0/30 is subnetted, 1 subnets C 192.168.64.0 is directly connected, Dialer4 10.0.0.0/24 is subnetted, 6 subnets O 10.9.9.0 [110/3347] via 10.5.5.1, 00:08:39, Serial1.1 O 10.8.8.0 [110/1563] via 10.5.5.1, 00:08:39, Serial1.1 C 10.5.5.0 is directly connected, Serial1.1 C 10.7.7.0 is directly connected, Loopback0 C 10.9.8.0 is directly connected, Dialer1 C 10.200.16.0 is directly connected, Ethernet0 S* 0.0.0.0/0 [1/0] via 10.200.16.1 krimson#
ملاحظة: لا توجد حاجة إلى تكوين محدد على الجانب المستدعي.
يحتوي نفس إخراج العرض المسجل أثناء العملية العادية على المعلومات التالية:
kevin#show interface serial 0.1 Serial0.1 is up, line protocol is up ! --- The primary interface is up and running. Hardware is HD64570 Internet address is 10.5.5.1/24 MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation FRAME-RELAY kevin#show interface dialer 0 Dialer0 is up (spoofing), line protocol is up (spoofing) ! --- Note: On the called side, the dialer interface is active ! --- and not in standby mode. Hardware is Unknown Internet address is 10.9.9.2/24 MTU 1500 bytes, BW 56 Kbit, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation PPP, loopback not set DTR is pulsed for 1 seconds on reset Last input 1w6d, output never, output hang never Last clearing of "show interface" counters 4w2d 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) Available Bandwidth 42 kilobits/sec 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 598 packets input, 49252 bytes 596 packets output, 48924 bytes kevin#show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area * - candidate default, U - per-user static route, o - ODR P - periodic downloaded static route Gateway of last resort is 10.200.16.1 to network 0.0.0.0 172.17.0.0/32 is subnetted, 1 subnets S 172.17.247.195 [1/0] via 10.200.16.1 172.19.0.0/32 is subnetted, 1 subnets C 172.19.0.1 is directly connected, Loopback1 10.0.0.0/24 is subnetted, 5 subnets C 10.5.5.0 is directly connected, Serial0.1 O 10.7.7.0 [110/65] via 10.5.5.2, 00:04:27, Serial0.1 C 10.9.9.0 is directly connected, Dialer0 C 10.8.8.0 is directly connected, Loopback0 C 10.200.16.0 is directly connected, Ethernet0 S* 0.0.0.0/0 [1/0] via 10.200.16.1
فيما يلي نفس المعلومات المسجلة أثناء الفشل:
kevin#show interface serial 0.1 Serial0.1 is down, line protocol is down Hardware is HD64570 Internet address is 10.5.5.1/24 MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation FRAME-RELAY kevin#show interface dialer 0 Dialer0 is up, line protocol is up (spoofing) Hardware is Unknown Internet address is 10.9.9.2/24 MTU 1500 bytes, BW 56 Kbit, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation PPP, loopback not set DTR is pulsed for 1 seconds on reset Interface is bound to BR0:1 Last input 1w6d, output never, output hang never Last clearing of "show interface" counters 4w2d 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) Available Bandwidth 42 kilobits/sec 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 618 packets input, 50700 bytes 616 packets output, 50384 bytes Bound to: BRI0:1 is up, line protocol is up 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) DTR is pulsed for 1 seconds on reset Time to interface disconnect: idle 00:01:57 Interface is bound to Di0 (Encapsulation PPP) LCP Open Open: IPCP Last input 00:00:03, output 00:00:02, output hang never Last clearing of "show interface" counters never Queueing strategy: fifo Output queue 0/40, 0 drops; input queue 0/75, 0 drops 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 1280 packets input, 138077 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 0 giants, 0 throttles 9789 input errors, 9789 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 1309 packets output, 138487 bytes, 0 underruns 0 output errors, 0 collisions, 15 interface resets 0 output buffer failures, 0 output buffers swapped out 351 carrier transitions kevin#show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area * - candidate default, U - per-user static route, o - ODR P - periodic downloaded static route Gateway of last resort is 10.200.16.1 to network 0.0.0.0 172.17.0.0/32 is subnetted, 1 subnets S 172.17.247.195 [1/0] via 10.200.16.1 172.19.0.0/32 is subnetted, 1 subnets C 172.19.0.1 is directly connected, Loopback1 10.0.0.0/8 is variably subnetted, 5 subnets, 2 masks O 10.7.7.0/24 [110/1786] via 10.9.9.1, 00:01:21, Dialer0 C 10.9.9.0/24 is directly connected, Dialer0 C 10.8.8.0/24 is directly connected, Loopback0 C 10.9.9.1/32 is directly connected, Dialer0 C 10.200.16.0/24 is directly connected, Ethernet0 S* 0.0.0.0/0 [1/0] via 10.200.16.1
يوفر هذا القسم معلومات يمكنك استخدامها لاستكشاف أخطاء التكوين وإصلاحها.
تكون تكوينات ترحيل الإطارات مع الواجهات الفرعية من نقطة إلى نقطة وفتح أقصر مسار أولا (OSPF) كبروتوكول توجيه مستخدم هنا خاصة بهذا الإعداد. ومع ذلك، فإن خطوات أستكشاف الأخطاء وإصلاحها الموضحة أكثر عمومية ويمكن إستخدامها مع تكوينات مختلفة مثل ترحيل الإطارات من نقطة إلى عدة نقاط أو إرتباط أساسي مع التحكم في إرتباط البيانات عالي المستوى (HDLC) أو تضمين بروتوكول النقطة إلى نقطة (PPP)، بغض النظر عن بروتوكول التوجيه المستخدم.
للتحقق من وظيفة النسخ الاحتياطي، تم وضع إحدى الواجهات على موجه Cisco 4500 الذي يعمل كمحول ترحيل الإطارات في حالة إيقاف التشغيل لمحاكاة المشكلة داخل شبكة ترحيل الإطارات. وبالتالي، يؤدي ذلك إلى حالة عدم نشاط PVC التي يتم إجراؤها على موجه DTE من خلال شبكة ترحيل الإطارات، وحدث إسقاط الواجهة الفرعية لترحيل الإطارات. يؤدي هذا إلى تنشيط واجهة النسخ الاحتياطي.
ملاحظة: قبل إصدار أوامر تصحيح الأخطاء، يرجى الاطلاع على المعلومات المهمة في أوامر تصحيح الأخطاء.
debug isdn q931
debug backup- تصحيح أخطاء أحداث النسخ الاحتياطي.
debug dialer- يعرض معلومات تصحيح الأخطاء حول الحزم أو الأحداث على واجهة المتصل.
debug ppp negotiation - يسبب الأمر debug ppp لعرض حزم PPP التي يتم إرسالها أثناء بدء تشغيل PPP، حيث يتم التفاوض مع خيارات PPP.
debug ppp authentication - يسبب الأمر debug ppp لعرض رسائل بروتوكول المصادقة، بما في ذلك عمليات تبادل الحزم لبروتوكول المصادقة المتباينة (CHAP) وعمليات تبادل بروتوكول مصادقة كلمة المرور (PAP).
debug ip ospf events - يعرض معلومات حول الأحداث المتعلقة ب OSPF، مثل التجاور، ومعلومات الفيضانات، وتحديد الموجه المعين، وحساب أقصر مسار أولا (SPF)
debug frame-relay events - يعرض معلومات تصحيح الأخطاء حول ردود ARP لترحيل الإطارات على الشبكات التي تدعم قناة البث المتعدد وتستخدم العنونة الديناميكية.
المراجعة | تاريخ النشر | التعليقات |
---|---|---|
1.0 |
04-Feb-2010 |
الإصدار الأولي |